BIBLIOGRAPHY CAYTAP, JANINE K. APRIL ...
BIBLIOGRAPHY
CAYTAP, JANINE K. APRIL 2012. Carcass Yield and Quality of Sunshine
Chicken Fed with Ground Hot Pepper as Feed Additive. Benguet State University, La
Trinidad Benguet.
Adviser: Myrna B. Walsiyen MSc
ABSTRACT
This study was conducted to determine the effect of ground hot pepper on the
carcass yield and quality of Sunshine chicken. Specifically, the study aimed to determine
the effect of ground hot pepper on the dressing percentage and to determine the quality of
carcass product from Sunshine chickens fed with different level of ground hot pepper
through organoleptic test.
A total of 12 Sunshine chickens were picked as samples from a previously
concluded growth feeding trials with the fallowing treatments: Pure commercial feeds, 5g
ground hot pepper /kg of commercial feed, 10 g ground hot pepper /kg of commercial feed,
15 g ground hot pepper /kg of commercial feed.
Result revealed that there were no significant differences between treatment in
terms of dressing percentage, meat cuts as percentage of slaughter weight and the
organoleptic test of the different birds in each treatment. A significant difference were
observed in the percentage of the head although this was most likely due to the difference
in cutting the head from the carcass and not the inclusion of ground hot pepper into the
feeds of the birds. A significant difference was also observed in the aroma. The average
Carcass Yield and Quality of Sunshine Chicken Fed with Ground Hot Pepper as Feed
Additive | CAYTAP, JANINE K. APRIL 2012
dressing percentage of the birds obtained in this study was 58.12 %. The mean weight of
the major meat cuts expressed as percentage of the slaughtered weight were as follows:
13.03 % for the breast, 8.09 % for the back, 8.87 % for the wings, and 19.37 % for the legs.
Based on the results of the study it is therefore concluded that the carcass yield and
quality of the meat of Sunshine chickens were not affected when birds are fed with ground
hot pepper at the level of 5-15g /kg of commercial feeds.
Carcass Yield and Quality of Sunshine Chicken Fed with Ground Hot Pepper as Feed
Additive | CAYTAP, JANINE K. APRIL 2012
INTRODUCTION
Meat is not only one of the very oldest food for humans, but is also the most
biologically valuable. This is mainly due to its high nutrient content. A part of the human
requirements for nutrient is covered by eating meat. Humans have been consuming meat
as part of their diet for most of their existence and will likely continue this behavior for a
long period of time. It is not surprising that meat has an special high importance in the
menu planning of those people who like to deliver extreme performance on their daily life.
One of the sources of meat of man is chicken and the consumption of chicken meat
is steadily rising. Many people are now health conscious and are best on eating more health
food products. Because of this, chicken meat with its good nutrient content and low fat
content is often preferred rather than other meats.
However, it is not only the fat content of the meat that is being looked into by the
meat consumers but also the presence of chemical residues in the meat brought about by
feed additives like antibiotics and other growth promotants. With this, many meat
consumers prefer to eat meat of organically grown animals which include chicken or those
animals that have been fed with organic diets and have been raised without the use of
hormones, antibiotics and other.
To satisfy the increasing demand of meat consumers today on the preference of
organic meat, this study was then realized to determine the carcass yield and quality of
Sunshine chicken fed with ground hot pepper as feed additive and it hopes to promote the
use of natural products as feed additives.
Carcass Yield and Quality of Sunshine Chicken Fed with Ground Hot Pepper as Feed
Additive | CAYTAP, JANINE K. APRIL 2012
Specifically, this study aimed to determine the dressing percentage, carcass yield
and the carcass quality of the Sunshine chicken fed with different levels of ground hot
pepper through organoleptic test.
This study was conducted at the Meat Laboratory of the Department of Animal
Science on July 2011.
Carcass Yield and Quality of Sunshine Chicken Fed with Ground Hot Pepper as Feed
Additive | CAYTAP, JANINE K. APRIL 2012
REVIEW OF LITERATURE
Pepper fruits are very popular due to their health-promoting properties associated
with their high content of vitamins C and E that are present in high concentration in various
pepper types (Howard et al, 2000).
Capsicum frutescent or siling labuyo is a small, erect, branched, half-woody, with
oblong-ovate leaves and flowers that are either solitary or several in each axel. The fruit is
commonly red when ripe, oblong-lanceolate in shape, and the seeds are numerous discoid.
The fruit contains the active principal capsaicin 0.14% and capsicum. It contains fatty oils,
15-20% volatile oil, starch 0.8-1.2%, pentosans 8.57%, and pectins 2.33% (Quisumbing,
1978).
According to Sumathy Kutty and Mathew (1987), capsicum frutescent is grown for
its spice and vegetable green fruits of commerce. It has different uses at mature green, red
ripe and dried stages. It is valued for its pungency which is due to crystalline acrid volatile
alkaloid capsaicin, present in the placenta of fruits. Capsaicin has diverse prophylactic and
therapeutic uses in allopathic and ayurvedic medicine.
The hot taste of peppers arises from capsaicinoids, alkaloids specific for the
Capsicum genus. Based on their capsaicinoid contents, peppers may be classified as hot,
semi-hot and sweet. Capsaicin, the main compound of capsaicinoids, has been studied
extensively to exploit its potentially therapeutic value (Long and Madeiros, 2001; Kogure
et al, 2002; Szolcsanyi, 2004). It is considered as an analgesic and anti-inflammatory drug
(Szocsanyi, 2004).
Coma (2000) mention that nutrition may have a significant effect on certain
attributes of meat quality. Meat quality is complex without a single definition. Fresh meat
Carcass Yield and Quality of Sunshine Chicken Fed with Ground Hot Pepper as Feed
Additive | CAYTAP, JANINE K. APRIL 2012
attributes such color, quality of fats, tenderness, juiciness and flavor are essential in order
to drive the purchase and assure consumers fidelity. In addition we must not forget the
interrelation with other elements of production process like genetic handling and
slaughtering.
When it comes to meat, qualitative studies have found that freshness, sensory
factors and perceived ‘healthfulness’ are the most important drivers of product choice.
Poultry tends to be perceived more favorably than beef or pork in terms of these attributes
(Verbeke and Beliefe, 1999).
Also when compared with other meat, chicken has slightly higher protein content
but the total fat content is no more than 20% of that of other meat. The saturated fatty acid
content is 50% that of other meat and the level of polyunsaturated fats slightly higher, thus
placing chicken very favorably with respect to human nutrition (Paul and Southgate, 1978).
Poultry accounts for the major part of all meat produced in many countries. It is not
just pertaining to its meat but also to its nutritional value. According to Paris (1998) a
poultry carcass should produce high yield of meat of good nutritional value and eating and
as a commodity, it has to meet the requirement of the costumer. Quality should include
nutrient value flavor and especially free from chemical residue.
To produce a good quality of meat, it is best to use organic feeds which are
formulated ration without using synthetic chemicals. Formulated ration such as organic
feeds are economical than commercial feeds. Organic chicken refers to animals reared in
semi out-door conditions and feed diets without using chemicals (Gill, 2000).
Carcass Yield and Quality of Sunshine Chicken Fed with Ground Hot Pepper as Feed
Additive | CAYTAP, JANINE K. APRIL 2012
METHODOLOGY
Materials
The different materials used in the study were as follows: 12 heads of 45 days old
Sunshine chicken, weighing scale, slaughtering materials such as sticking knife,
butchering knife and bolo, pot for boiling water; stove, water, basin, camera and a record
notebook.
Methods
Experimental birds and treatment. The birds used in the study were taken from a
previous growth study which utilized the following treatments;
To- control (pure commercial feed)
T1- 5 grams ground hot pepper per kg of commercial feed
T2- 10 grams ground hot pepper per kg of commercial feed
T3- 15 grams ground hot pepper per kg of commercial feed
After a feeding period of 45 days, three birds representing three replications were
taken from each treatment and served as samples for carcass evaluation. The above
treatments used in the growth trial were also followed in this study.
Slaughtering of birds. The live weights of the birds were taken individually before
dressing. Prior to dressing, the birds were confined in cages and fasted for 8 hours but water
was provided ad libitum. At the time of slaughtering or dressing, birds were restrained by
holding both of their shanks to prevent struggling. With the help of an assistant, sticking
was done by severing the large blood vessel of the neck at the lateral side below the
mandible. To have better bleeding, each bird was raised with the caudal part higher than
the head. After bleeding, each bird was immersed into hot water for about a minute, after
Carcass Yield and Quality of Sunshine Chicken Fed with Ground Hot Pepper as Feed
Additive | CAYTAP, JANINE K. APRIL 2012
which, its feathers were plucked. Re-immersing was done when some feathers were hard
to pluck. After plucking, the birds were washed thoroughly and made ready for
evisceration.
Evisceration was done by laying the birds with its back on the table. The esophagus
and windpipe were pulled out from the base of mandible. For easy insertion of the hand, a
slit was made around the vent and then down to the keel. The hand was then inserted into
the slit in the abdomen and the visceral organs were pulled out. After entrails were pulled
out, the liver, heart and gizzard with proventriculus were separated. The head was detached
at the atlanto occipital joint which was accomplished by severing the skin, muscle and
ligaments at the said joint with sharp knife.
Carcass yield evaluation. The dressed chickens were then chopped into the standard
cuts, namely the legs, breast, back, wings, feet, neck and head and these were weighed
individually and were recorded in grams (Figures 1-7). The internal organs such as the
heart, gizzard and GIT (full and empty) were likewise weighed.
Carcass quality evaluation. The meat samples for taste test were taken from the
breast portion of the carcass. These were cooked in four cups of water at the same time in
the same type of utensil (casserole) for 45 minutes. Cooking was done per treatment. After
cooking, meat samples were sliced into bite sizes after which these were presented to a
panel of tasters. The panel of tasters was composed of 10 professionals and 10 students.
Each member of the panel was provided with a score card for him to put his rating after
tasting each sample. Also, each member was requested to rinse his mouth after each taste
to remove any remains of the meat samples previously eaten that may have affect his rating
for the succeeding meat sample.
Carcass Yield and Quality of Sunshine Chicken Fed with Ground Hot Pepper as Feed
Additive | CAYTAP, JANINE K. APRIL 2012
Figure 1. Weighing of the legs from the slaughtered birds
Figure 2. Weighing of feet from the slughtered birds
Carcass Yield and Quality of Sunshine Chicken Fed with Ground Hot Pepper as Feed
Additive | CAYTAP, JANINE K. APRIL 2012
Figure 3. Weighing of wings from the slaughtered birds
Figure 4. Weighing of breast from the slaughtered birds
Carcass Yield and Quality of Sunshine Chicken Fed with Ground Hot Pepper as Feed
Additive | CAYTAP, JANINE K. APRIL 2012
Figure 5. Weighing of neck of from the slaughtered birds
Figure 6. Weighing of head from the slaughtered birds
Carcass Yield and Quality of Sunshine Chicken Fed with Ground Hot Pepper as Feed
Additive | CAYTAP, JANINE K. APRIL 2012
Data Gathered
The following parameters were gathered from the study:
1. Slaughter weight (kg). This was the weight of the bird before slaughtering.
2. Dressed weight (kg). This was the weight of bird’s carcass after plucking the
feathers, and removing the head, feet and entrails.
3. Weight of legs (g). This was obtained by weighing the legs separately from the
other cuts.
4. Weight of breast (g). This was obtained by taking the weight of the breast from
each carcass.
5. Weight of the back (g). This was obtained by taking the weight of the back from
each carcass.
6. Weight of the wings (g). This was obtained by taking the weight of the wings
from each carcass.
7. Weight of the feet (g). This was obtained by taking the weight of the feet from
each carcass.
8. Weight of the neck (g). This was obtained by taking the weight of the neck from
each carcass.
9. Weight of the head (g). This was obtained by weighing the head from each
carcass.
10. Weight of the heart (g). This was obtained by taking the weight of the heart
from each carcass.
11. Weight of the liver (g). This was obtained by taking the weight of the liver from
each carcass
Carcass Yield and Quality of Sunshine Chicken Fed with Ground Hot Pepper as Feed
Additive | CAYTAP, JANINE K. APRIL 2012
12. Weight of the gizzard (g). This was obtained by taking the weight of the gizzard
of each carcass.
13. Weight of the GIT (full) (g). This was obtained by the weighing of the GIT
with it’s contents.
14. Weight of the empty GIT (empty) (g). This was obtained by taking the weight
of the GIT after it has been emptied.
15. Meat appearance, aroma, juiciness, tenderness, flavor and acceptability. These
were obtained through organoleptic involving a panel of taster’s.
Data Computed
1. Dressing percentage (%). This was obtained by dividing the dressed weight by
slaughter weight multiplied by 100 %.
2. Percentage weight of the different cuts (%). This was obtained by dividing the
actual weight of the meat cut by the slaughter weight multiplied by 100%.
Data Analysis
The data gathered were consolidated, tabulated and analyzed using the analysis of
Variance for Completely Randomized Design. Treatment means were compared using
Duncans Multiple Range Test (DMRT).
Carcass Yield and Quality of Sunshine Chicken Fed with Ground Hot Pepper as Feed
Additive | CAYTAP, JANINE K. APRIL 2012
RESULTS AND DISCUSSION
Slaughter Weight, Dressed Weight,
and Dressing Percentage
Table 1 presents the slaughter weights, dressed weights and dressing percentage of
the birds in the different treatments. In terms of slaughter weights, statistical analysis
revealed that there were no significant differences between treatment means of birds given
pure commercial feed and those birds given 5-15 grams ground hot pepper /kg of
commercial feed offered to them. This means that the sample birds used in the study were
more or less of the same weight of slaughter. The birds had an overall mean slaughter
weight of 1.25 kg.
Similarly, true to both the dressed weight and the dressing percentage, no
significant differences were also observed between treatment means. Noticeable
differences are observed as percentage in the Table but such differences were still
considered small to cause significant effects as revealed by the statistical differences. The
non-significance between treatment means means that the dressed weight and the dressing
percentage of the sample birds in all the treatments were more or less the same.
Table 1. Slaughter weight, dressed weight, and dressing percentage of sample birds.
MEAN*
TREATMENT SLAUGHTER DRESSED DRESSING
WEIGHT(kg) WEIGHT(kg) PERCENTAGE(%)
Pure commercial feed 1.35a 0.79a 58.27a
5 grams ground hot pepper/kg CF 1.27a 0.73a 58.06a
10 grams of ground hot pepper/kg CF 1.17a 0.68a 58.61a
15 grams of ground hot pepper/kg CF 1.23a 0.71a 57.53a
*Mean with the same letters are not significant different at 5% level, DMRT
Carcass Yield and Quality of Sunshine Chicken Fed with Ground Hot Pepper as Feed
Additive | CAYTAP, JANINE K. APRIL 2012
The dressed weight of the birds ranged from 0.68 to 0.79 kg and the dressing
percentage ranged from 57.53 to 58.61 %. The dressed weight did not include both the
weights of the head and feet so that in terms of dressing percentage, it appears that the
values obtained were very much lower compared to the average dressing percentage of
broiler chickens.
Major Meat Cuts Yields
Table 2 presents the weight of the major meat cuts namely the back, breast, wings
and legs expressed as percentage of the slaughter weight. True to all the above parameters,
no significant differences were obtained between treatment means. This implied that the
weight of the major meat cuts expressed as percentage of the slaughter weight were more
or less similar. It is also implied that though there are noticeable differences between
treatment means as presented in the Table, such difference were still considered small to
cause significant effects. Moreover it is also implied that the addition of the ground hot
pepper into the feeds of the birds at the level of 5-15 grams/kg commercial feed did not
affect the weights of the major cuts.
Table 2. Weight of the back, breast, wings and legs expressed as percentage of the slaughter
weight of sample birds (%)
MEAN*
TREATMENT BACK BREAST WINGS LEGS
Pure commercial feed 14.51a 17.76a 8.52a 18.36a
5 grams ground hot pepper/kg CF 12.84a 17.84a 8.74a 19.74a
10 grams of ground hot pepper/kg CF 12.74a 17.52a 9.31a 20.02a
15 grams of ground hot pepper/kg CF 12.04a 19.22a 8.92a 19.21a
*Mean with the same letters are not significant different at 5% level, DMRT
Carcass Yield and Quality of Sunshine Chicken Fed with Ground Hot Pepper as Feed
Additive | CAYTAP, JANINE K. APRIL 2012
Minor Meat Cuts Yields
The weight of the minor meat cuts namely the feet, neck and head in the different
treatments are shown in Table 3. It is shown in the Table that there were no significant
differences between treatment means in the percent weight of the feet and neck. Which
means that the addition of ground hot pepper into the feeds of the birds at the level of 5-15
g/kg feed did not affect the weight of the feet and neck. There are noticeable differences,
as presented in the Table, however, such differences were still considered small to cause
significant differences. A significant effect was observed in the percent weight of the head.
One probable cause of this significant is due to the inaccuracy how the head was cut but
most likely this was caused by the differences in cutting the head and not due to the
inclusion of ground hot pepper into the feeds of the birds.
Table 3. Weights of the feet, neck and head expressed as percentage of the slaughter weight
of sample birds (%)
MEAN*
TREATMENT FEET NECK HEAD
Pure commercial feed 4.68a 4.33a 3.33b
5 grams ground hot pepper/kg CF 4.93a 4.08a 3.83ab
10 grams of ground hot pepper/kg CF 7.22a 4.14a 4.44a
15 grams of ground hot pepper/kg CF 5.02a 4.02a 3.40b
*Mean with the same letters is not significant different at 5% level, DMRT
Carcass Yield and Quality of Sunshine Chicken Fed with Ground Hot Pepper as Feed
Additive | CAYTAP, JANINE K. APRIL 2012
Yield of the Internal Organs
The weight of internal organs as percentage of the slaughter weight of the birds in
all treatments are presented in Table 4 and 5. Similar to the major meat cuts, statistical
analysis revealed no significant differences between treatment means in the percent weight
of GIT (full and empty), gizzard, liver and the heart. This implied that the percent weight
of the above internal organs of the birds in different treatments were more or less similar.
It is also implied that adding ground hot pepper into the ration of the birds at the level of
5-15 g/kg feed probably did not cause any adverse effect on the growth or development of
such organs for these to be more or less of the same percent weight. The mean percentage
of the internal organs was 10.41 % and 6.99 % for the GIT, (full and empty), respectively;
2.90% for the gizzard, 1.01 % for the heart and 2.66 % for the liver.
Figure 7 shows the percentage of meat cuts and entrails.
Table 4. Weight of the GIT (full and empty) and gizzard as percentage of the slaughter
weight of sample birds (%)
MEAN*
TREATMENT FULL GIT EMPTY GIT GIZZARD
Pure commercial feed 7.17a 5.64a 2.98a
5 grams ground hot pepper/kg CF 11.27a 7.53a 3.34a
10 grams of ground hot pepper/kg CF 12.17a 8.56a 2.86a
15 grams of ground hot pepper/kg CF 11.04a 6.23a 2.43a
*Mean with the same letters are not significant different at 5% level, DMRT
Carcass Yield and Quality of Sunshine Chicken Fed with Ground Hot Pepper as Feed
Additive | CAYTAP, JANINE K. APRIL 2012
Table 5. Weights of the heart and liver expressed as percentage of slaughter weight of the
sample birds (%)
MEAN*
TREATMENT HEART LIVER
Pure commercial feed 1.12a 2.34a
5 grams ground hot pepper/kg CF 0.95a 3.03a
10 grams of ground hot pepper/kg CF 1.14a 2.86a
15 grams of ground hot pepper/kg CF 0.83a 2.43a
*Mean with the same letters are not significant different at 5% level, DMRT
Meat Cuts as Percentage Serie
of Slas1,
ug liver
hter , 2.66
We ,
ight
Series1, gizzard,
3%
Series1, heart,
Series1, neck,
Series1, head,
2.99, 3%
1.01, 1%
4.14, 4%
3.37, 3%
Series1, feet,
5.47, 6%
Series1,
empty GIT,
6.99, 7%
Series1, legs,
19.33, 20%
Series1, wings,
8.87, 9%
Series1, breast,
18.09, 19%
Series1, full GIT,
10.41, 11%
Series1, back,
13.03, 14%
Figure 7. Pie Graph of Meat Cuts and Entrails
Carcass Yield and Quality of Sunshine Chicken Fed with Ground Hot Pepper as Feed
Additive | CAYTAP, JANINE K. APRIL 2012
Sensory Quality Attributes
Appearance. Table 6 shows the ratings for appearance of the meat in the different
treatment. Statistical analysis revealed no significant differences between treatment means
which indicates that the appearance of the meat in the different treatments were more or
less similar. It also implied that the ground hot pepper added to the ration of the birds at
the level of 5-15 g/kg feed did not alter the appearance of the meat. In verbal description,
the meat samples in the different treatment were all rated as desirable in appearance by the
member of the panel of tasters.
Aroma. Table 7 shows the aroma of the meat samples in the different treatments as
evaluated by the panel of tasters. It appears that there are significant differences between
treatment means. McWilliams (2003) cited that, the volatility and detection of aroma are
related to the temperature of food. It is the high temperature tends to volatize aromatic
compounds making them apparent for judging. However, in verbal description the meat
aromas of the samples in the different treatments were all rated liked very much.
Table 6. Appearance of the cooked meat samples in the different treatments
TREATMENT MEAN* VERBAL DESCRIPTION
Pure commercial feed 2.54a Desirable
5 grams ground hot pepper/kg CF 2.60a Desirable
10 grams of ground hot pepper/kg CF 2.56a Desirable
15 grams of ground hot pepper/kg CF 2.54a Desirable
*Mean with the same letters are not significant different at 5% level, DMRT
Carcass Yield and Quality of Sunshine Chicken Fed with Ground Hot Pepper as Feed
Additive | CAYTAP, JANINE K. APRIL 2012
Table 7. Aroma of the cooked meat samples in the different treatments
TREATMENT MEAN* VERBAL DESCRIPTION
Pure commercial feed 2.64bc Like very much
5 grams ground hot pepper/kg CF 2.54a Like very much
10 grams of ground hot pepper/kg CF 2.68c Like very much
15 grams of ground hot pepper/kg CF 2.56ab Like very much
*Mean with the same letters are not significant different at 5% level, DMRT
Tenderness. Table 8 presents the ratings for tenderness of the meat samples in the
different treatments. Similar to appearance statistical analysis revealed no significant
differences between treatment means. This means also that the tenderness of the meat
samples from the different treatment was more or less the same and adding 5-15g of ground
hot pepper for every kilogram of feed offered to the birds did not reduce nor improve the
tenderness of the meat. The meat samples in the different treatments were all rated verbally
as slightly tender.
Table 8. Tenderness of the cooked meat samples in the different treatments
TREATMENT MEAN* VERBAL DESCRIPTION
Pure commercial feed 2.40a Slightly tender
5 grams ground hot pepper/kg CF 2.38a Slightly tender
10 grams of ground hot pepper/kg CF 2.43a Slightly tender
15 grams of ground hot pepper/kg CF 2.33a Slightly tender
*Mean with the same letters are not significant different at 5% level, DMRT
Carcass Yield and Quality of Sunshine Chicken Fed with Ground Hot Pepper as Feed
Additive | CAYTAP, JANINE K. APRIL 2012
Juiciness. The juiciness of the meat samples in the different treatment are presented
in Table 9. No significant differences among treatment means were revealed by the
statistical analysis. This means that meat samples from the different treatment had more or
less the same juiciness. Also, it means that the ground hot pepper, when added into the diet
of the birds at the level of 5-15 g/kg feed, does not affect the juiciness of the meat of such
birds when slaughtered. In verbal description, the meat samples in the different treatments
were all rated slightly juicy.
Flavor. Table 10 shows the ratings for flavor of the meat samples from the different
treatments. Statistically, no significant differences were observed between treatment means
indicating that the meat from the different treatments had more or less the same flavor. It
also indicates that the ground hot pepper, when added into the diets of the birds at the level
of5-15 g/kg feed, did not affect the flavor of the meat. However, in verbal description the
meat samples derived from birds given pure commercial feed was rated very good while
the meat samples derived from birds given ground hot pepper were rated as good only.
Table 9. Juiciness of the cooked meat samples in the different treatments
TREATMENT MEAN* VERBAL DESCRIPTION
Pure commercial feed 2.44a Like moderately
5 grams ground hot pepper/kg CF 2.45a Like moderately
10 grams of ground hot pepper/kg CF 2.33a Like moderately
15 grams of ground hot pepper/kg CF 2.34a Like moderately
*Mean with the same letters are not significant different at 5% level, DMRT
Carcass Yield and Quality of Sunshine Chicken Fed with Ground Hot Pepper as Feed
Additive | CAYTAP, JANINE K. APRIL 2012
Acceptability. Table 11 presents the overall acceptability of the meat samples in the
different treatments as evaluated by the panel of tasters. Statistical analysis showed that
there were no significant differences among treatment means. However, in verbal
description, the meat samples derived from birds given ground hot pepper were liked very
much by the panel of tasters while the meat samples derived from birds given pure
commercial feeds or given no ground hot pepper were liked moderately.
Table 10. Flavor of the cooked meat samples in the different treatments
TREATMENT MEAN* VERBAL DESCRIPTION
Pure commercial feed 2.50a Very good
5 grams ground hot pepper/kg CF 2.43a Good
10 grams of ground hot pepper/kg CF 2.38a Good
15 grams of ground hot pepper/kg CF 2.36a Good
*Mean with the same letters are not significant different at 5% level, DMRT
Table 11. Acceptability of the cooked meat samples in the different treatments
TREATMENT MEAN* VERBAL DESCRIPTION
Pure commercial feed 2.49a Like moderately
5 grams ground hot pepper/kg CF 2.56a Like very much
10 grams of ground hot pepper/kg CF 2.50a Like very much
15 grams of ground hot pepper/kg CF 2.50a Like very much
*Mean with the same letters are not significant different at 5% level, DMRT
Carcass Yield and Quality of Sunshine Chicken Fed with Ground Hot Pepper as Feed
Additive | CAYTAP, JANINE K. APRIL 2012
SUMMARY, CONCLUSION, RECCOMMENDATION
Summary
The study was conducted to determine the effect of ground hot pepper on the
carcass yield and quality of Sunshine chicken.
Specifically, the study aimed to determine the effect of ground hot pepper on the
dressing percentage and carcass quality Sunshine chickens fed with different levels of
ground hot pepper through organoleptic test. The treatments were as follows. Pure
commercial feeds, 5g ground hot pepper per kg of commercial feeds, 10g ground hot
pepper per kg of commercial feeds and 15g ground hot pepper per kg of commercial feeds.
The dressed weight range from 0.68 to 0.79 kg and the dressing percentage ranged from
57.53 to 58.61 % (feet and head off). No significant differences were also observed in the
weight of the major meat cuts yields namely the back, breast, wings and legs expressed as
percentage of the slaughter weight. The percent back range from 12.04 to 14.57 %; 17.52
to 19.22 % for percent breast, 8.52 to 9.31 % for percent wings, and 18.36 to 20.02 % for
percent legs. However, no significant differences were also observed in the percent feet
and neck. Significant differences were observed on the percent head but this was caused
by the differences in cutting to separate the head from the carcass and not because of the
inclusion of ground hot pepper into the feeds of the birds.
In terms of organoleptic test, results of the study also showed that there were no
significant differences in the appearance, tenderness, juiciness, flavor and the overall
acceptability of the meat samples. Significant differences were observed in the aroma as
revealed by the statistical analysis. However the aroma of the meat samples in all the meat
sample in all the treatments were liked very much.
Carcass Yield and Quality of Sunshine Chicken Fed with Ground Hot Pepper as Feed
Additive | CAYTAP, JANINE K. APRIL 2012
Conclusion
Based on the results of the study it is therefore concluded that the carcass yield and
quality of the meat of Sunshine chickens were not affected when birds are fed with ground
hot pepper at the level of 5-15g /kg of commercial feeds.
Recommendation
Based on the result of the study, ground hot pepper may be fed to broilers at the
levels of 5-15g /kg of commercial feed because of its effect on the growth of the birds but
not on carcass quality.
Carcass Yield and Quality of Sunshine Chicken Fed with Ground Hot Pepper as Feed
Additive | CAYTAP, JANINE K. APRIL 2012
LITERATURE CITED
COMA, V. 2000. Feeding Guidelines for Meat and Pig Progress 16. Carcass Yield And
Quality Of Cob And Hubbard Broilers Fed With Varying Levels Of Okara. P. 5.
GILL, C. 2000. Originally Dutch, Feed International 21 (4):63 Retrieved From BS Thesis
Carcass Yield And Quality Of Cobb And Hubbard Broilers Fed With Varying
Level Okara (Soybean Pulp). P. 6.
HOWARD L. R., TALCOTTS. T. BRENESC. H., VILLALON B., 2000. Changes In
Photochemical and Antioxidant Activity of Selected Pepper Cultivars (Capsicum
Species) As Influenced By Maturity. Agric. Food Chem. 48:1713-1720.
KOGURE K., GOTO S., NISHIMURA M. and YASUMOTO, 2002. Mechanics of
Potent Antiperoxidative Effect of Capsaisin. Bioch. Acta, 1573:84-92
LONG A. C., MEDEIROS D. M., 2001. Evaluation of Capsaicin Use in Analgesic
Medicine. Nutraceuticals, 3: 39-46.
MCWILLIAMS, M. 2008. Food Experimental Perspective Person Education, Inc., Upper
Saddle River, New Jersey.
PARIS, C. G. 1998. Correlation Analysis between Live Weight and Some Related
Dressed Carcass and Turkey. Bs Thesis Benguet State University La Trinidad
Benguet. P.#5
PAUL, A. A. and D. A. T., SOUTHGATE. 1978. Mccance and Widdowson’s the
Composition of Foods., 4th Ed. London: Hm Stationery Office
QUISUMBING, E., 1978. Medicinal Plants of the Philippines. Katha Publishing Co.,
Inc., Quezon City. Pp. 836-838
SUMATHY KUTTY, M.A. AND A.G. MATTEW. 1987. Chili Processing, India Cocao,
Areca nut and Spice Journal 7. P. 112-113.
SZOCSANYI J., 2004. Forty Years in Capsaicin Research for Sensory Pharmacologogy
and Physiology. Neuropeptides, 38: 377-384.
VERBEKE W, VIANE J. BELIEFE. 1999. Attitude and Behavior towards Fresh Meat
Consumption in Belgium; Empirical Evidence from A Consumer Study. Food
Quality and Preference. 1999; Vol. 10:437-45.
Carcass Yield and Quality of Sunshine Chicken Fed with Ground Hot Pepper as Feed
Additive | CAYTAP, JANINE K. APRIL 2012
CAYTAP, JANINE K. APRIL 2012. Carcass Yield and Quality of Sunshine
Chicken Fed with Ground Hot Pepper as Feed Additive. Benguet State University, La
Trinidad Benguet.
Adviser: Myrna B. Walsiyen MSc
ABSTRACT
This study was conducted to determine the effect of ground hot pepper on the
carcass yield and quality of Sunshine chicken. Specifically, the study aimed to determine
the effect of ground hot pepper on the dressing percentage and to determine the quality of
carcass product from Sunshine chickens fed with different level of ground hot pepper
through organoleptic test.
A total of 12 Sunshine chickens were picked as samples from a previously
concluded growth feeding trials with the fallowing treatments: Pure commercial feeds, 5g
ground hot pepper /kg of commercial feed, 10 g ground hot pepper /kg of commercial feed,
15 g ground hot pepper /kg of commercial feed.
Result revealed that there were no significant differences between treatment in
terms of dressing percentage, meat cuts as percentage of slaughter weight and the
organoleptic test of the different birds in each treatment. A significant difference were
observed in the percentage of the head although this was most likely due to the difference
in cutting the head from the carcass and not the inclusion of ground hot pepper into the
feeds of the birds. A significant difference was also observed in the aroma. The average
Carcass Yield and Quality of Sunshine Chicken Fed with Ground Hot Pepper as Feed
Additive | CAYTAP, JANINE K. APRIL 2012
dressing percentage of the birds obtained in this study was 58.12 %. The mean weight of
the major meat cuts expressed as percentage of the slaughtered weight were as follows:
13.03 % for the breast, 8.09 % for the back, 8.87 % for the wings, and 19.37 % for the legs.
Based on the results of the study it is therefore concluded that the carcass yield and
quality of the meat of Sunshine chickens were not affected when birds are fed with ground
hot pepper at the level of 5-15g /kg of commercial feeds.
Carcass Yield and Quality of Sunshine Chicken Fed with Ground Hot Pepper as Feed
Additive | CAYTAP, JANINE K. APRIL 2012
INTRODUCTION
Meat is not only one of the very oldest food for humans, but is also the most
biologically valuable. This is mainly due to its high nutrient content. A part of the human
requirements for nutrient is covered by eating meat. Humans have been consuming meat
as part of their diet for most of their existence and will likely continue this behavior for a
long period of time. It is not surprising that meat has an special high importance in the
menu planning of those people who like to deliver extreme performance on their daily life.
One of the sources of meat of man is chicken and the consumption of chicken meat
is steadily rising. Many people are now health conscious and are best on eating more health
food products. Because of this, chicken meat with its good nutrient content and low fat
content is often preferred rather than other meats.
However, it is not only the fat content of the meat that is being looked into by the
meat consumers but also the presence of chemical residues in the meat brought about by
feed additives like antibiotics and other growth promotants. With this, many meat
consumers prefer to eat meat of organically grown animals which include chicken or those
animals that have been fed with organic diets and have been raised without the use of
hormones, antibiotics and other.
To satisfy the increasing demand of meat consumers today on the preference of
organic meat, this study was then realized to determine the carcass yield and quality of
Sunshine chicken fed with ground hot pepper as feed additive and it hopes to promote the
use of natural products as feed additives.
Carcass Yield and Quality of Sunshine Chicken Fed with Ground Hot Pepper as Feed
Additive | CAYTAP, JANINE K. APRIL 2012
Specifically, this study aimed to determine the dressing percentage, carcass yield
and the carcass quality of the Sunshine chicken fed with different levels of ground hot
pepper through organoleptic test.
This study was conducted at the Meat Laboratory of the Department of Animal
Science on July 2011.
Carcass Yield and Quality of Sunshine Chicken Fed with Ground Hot Pepper as Feed
Additive | CAYTAP, JANINE K. APRIL 2012
REVIEW OF LITERATURE
Pepper fruits are very popular due to their health-promoting properties associated
with their high content of vitamins C and E that are present in high concentration in various
pepper types (Howard et al, 2000).
Capsicum frutescent or siling labuyo is a small, erect, branched, half-woody, with
oblong-ovate leaves and flowers that are either solitary or several in each axel. The fruit is
commonly red when ripe, oblong-lanceolate in shape, and the seeds are numerous discoid.
The fruit contains the active principal capsaicin 0.14% and capsicum. It contains fatty oils,
15-20% volatile oil, starch 0.8-1.2%, pentosans 8.57%, and pectins 2.33% (Quisumbing,
1978).
According to Sumathy Kutty and Mathew (1987), capsicum frutescent is grown for
its spice and vegetable green fruits of commerce. It has different uses at mature green, red
ripe and dried stages. It is valued for its pungency which is due to crystalline acrid volatile
alkaloid capsaicin, present in the placenta of fruits. Capsaicin has diverse prophylactic and
therapeutic uses in allopathic and ayurvedic medicine.
The hot taste of peppers arises from capsaicinoids, alkaloids specific for the
Capsicum genus. Based on their capsaicinoid contents, peppers may be classified as hot,
semi-hot and sweet. Capsaicin, the main compound of capsaicinoids, has been studied
extensively to exploit its potentially therapeutic value (Long and Madeiros, 2001; Kogure
et al, 2002; Szolcsanyi, 2004). It is considered as an analgesic and anti-inflammatory drug
(Szocsanyi, 2004).
Coma (2000) mention that nutrition may have a significant effect on certain
attributes of meat quality. Meat quality is complex without a single definition. Fresh meat
Carcass Yield and Quality of Sunshine Chicken Fed with Ground Hot Pepper as Feed
Additive | CAYTAP, JANINE K. APRIL 2012
attributes such color, quality of fats, tenderness, juiciness and flavor are essential in order
to drive the purchase and assure consumers fidelity. In addition we must not forget the
interrelation with other elements of production process like genetic handling and
slaughtering.
When it comes to meat, qualitative studies have found that freshness, sensory
factors and perceived ‘healthfulness’ are the most important drivers of product choice.
Poultry tends to be perceived more favorably than beef or pork in terms of these attributes
(Verbeke and Beliefe, 1999).
Also when compared with other meat, chicken has slightly higher protein content
but the total fat content is no more than 20% of that of other meat. The saturated fatty acid
content is 50% that of other meat and the level of polyunsaturated fats slightly higher, thus
placing chicken very favorably with respect to human nutrition (Paul and Southgate, 1978).
Poultry accounts for the major part of all meat produced in many countries. It is not
just pertaining to its meat but also to its nutritional value. According to Paris (1998) a
poultry carcass should produce high yield of meat of good nutritional value and eating and
as a commodity, it has to meet the requirement of the costumer. Quality should include
nutrient value flavor and especially free from chemical residue.
To produce a good quality of meat, it is best to use organic feeds which are
formulated ration without using synthetic chemicals. Formulated ration such as organic
feeds are economical than commercial feeds. Organic chicken refers to animals reared in
semi out-door conditions and feed diets without using chemicals (Gill, 2000).
Carcass Yield and Quality of Sunshine Chicken Fed with Ground Hot Pepper as Feed
Additive | CAYTAP, JANINE K. APRIL 2012
METHODOLOGY
Materials
The different materials used in the study were as follows: 12 heads of 45 days old
Sunshine chicken, weighing scale, slaughtering materials such as sticking knife,
butchering knife and bolo, pot for boiling water; stove, water, basin, camera and a record
notebook.
Methods
Experimental birds and treatment. The birds used in the study were taken from a
previous growth study which utilized the following treatments;
To- control (pure commercial feed)
T1- 5 grams ground hot pepper per kg of commercial feed
T2- 10 grams ground hot pepper per kg of commercial feed
T3- 15 grams ground hot pepper per kg of commercial feed
After a feeding period of 45 days, three birds representing three replications were
taken from each treatment and served as samples for carcass evaluation. The above
treatments used in the growth trial were also followed in this study.
Slaughtering of birds. The live weights of the birds were taken individually before
dressing. Prior to dressing, the birds were confined in cages and fasted for 8 hours but water
was provided ad libitum. At the time of slaughtering or dressing, birds were restrained by
holding both of their shanks to prevent struggling. With the help of an assistant, sticking
was done by severing the large blood vessel of the neck at the lateral side below the
mandible. To have better bleeding, each bird was raised with the caudal part higher than
the head. After bleeding, each bird was immersed into hot water for about a minute, after
Carcass Yield and Quality of Sunshine Chicken Fed with Ground Hot Pepper as Feed
Additive | CAYTAP, JANINE K. APRIL 2012
which, its feathers were plucked. Re-immersing was done when some feathers were hard
to pluck. After plucking, the birds were washed thoroughly and made ready for
evisceration.
Evisceration was done by laying the birds with its back on the table. The esophagus
and windpipe were pulled out from the base of mandible. For easy insertion of the hand, a
slit was made around the vent and then down to the keel. The hand was then inserted into
the slit in the abdomen and the visceral organs were pulled out. After entrails were pulled
out, the liver, heart and gizzard with proventriculus were separated. The head was detached
at the atlanto occipital joint which was accomplished by severing the skin, muscle and
ligaments at the said joint with sharp knife.
Carcass yield evaluation. The dressed chickens were then chopped into the standard
cuts, namely the legs, breast, back, wings, feet, neck and head and these were weighed
individually and were recorded in grams (Figures 1-7). The internal organs such as the
heart, gizzard and GIT (full and empty) were likewise weighed.
Carcass quality evaluation. The meat samples for taste test were taken from the
breast portion of the carcass. These were cooked in four cups of water at the same time in
the same type of utensil (casserole) for 45 minutes. Cooking was done per treatment. After
cooking, meat samples were sliced into bite sizes after which these were presented to a
panel of tasters. The panel of tasters was composed of 10 professionals and 10 students.
Each member of the panel was provided with a score card for him to put his rating after
tasting each sample. Also, each member was requested to rinse his mouth after each taste
to remove any remains of the meat samples previously eaten that may have affect his rating
for the succeeding meat sample.
Carcass Yield and Quality of Sunshine Chicken Fed with Ground Hot Pepper as Feed
Additive | CAYTAP, JANINE K. APRIL 2012
Figure 1. Weighing of the legs from the slaughtered birds
Figure 2. Weighing of feet from the slughtered birds
Carcass Yield and Quality of Sunshine Chicken Fed with Ground Hot Pepper as Feed
Additive | CAYTAP, JANINE K. APRIL 2012
Figure 3. Weighing of wings from the slaughtered birds
Figure 4. Weighing of breast from the slaughtered birds
Carcass Yield and Quality of Sunshine Chicken Fed with Ground Hot Pepper as Feed
Additive | CAYTAP, JANINE K. APRIL 2012
Figure 5. Weighing of neck of from the slaughtered birds
Figure 6. Weighing of head from the slaughtered birds
Carcass Yield and Quality of Sunshine Chicken Fed with Ground Hot Pepper as Feed
Additive | CAYTAP, JANINE K. APRIL 2012
Data Gathered
The following parameters were gathered from the study:
1. Slaughter weight (kg). This was the weight of the bird before slaughtering.
2. Dressed weight (kg). This was the weight of bird’s carcass after plucking the
feathers, and removing the head, feet and entrails.
3. Weight of legs (g). This was obtained by weighing the legs separately from the
other cuts.
4. Weight of breast (g). This was obtained by taking the weight of the breast from
each carcass.
5. Weight of the back (g). This was obtained by taking the weight of the back from
each carcass.
6. Weight of the wings (g). This was obtained by taking the weight of the wings
from each carcass.
7. Weight of the feet (g). This was obtained by taking the weight of the feet from
each carcass.
8. Weight of the neck (g). This was obtained by taking the weight of the neck from
each carcass.
9. Weight of the head (g). This was obtained by weighing the head from each
carcass.
10. Weight of the heart (g). This was obtained by taking the weight of the heart
from each carcass.
11. Weight of the liver (g). This was obtained by taking the weight of the liver from
each carcass
Carcass Yield and Quality of Sunshine Chicken Fed with Ground Hot Pepper as Feed
Additive | CAYTAP, JANINE K. APRIL 2012
12. Weight of the gizzard (g). This was obtained by taking the weight of the gizzard
of each carcass.
13. Weight of the GIT (full) (g). This was obtained by the weighing of the GIT
with it’s contents.
14. Weight of the empty GIT (empty) (g). This was obtained by taking the weight
of the GIT after it has been emptied.
15. Meat appearance, aroma, juiciness, tenderness, flavor and acceptability. These
were obtained through organoleptic involving a panel of taster’s.
Data Computed
1. Dressing percentage (%). This was obtained by dividing the dressed weight by
slaughter weight multiplied by 100 %.
2. Percentage weight of the different cuts (%). This was obtained by dividing the
actual weight of the meat cut by the slaughter weight multiplied by 100%.
Data Analysis
The data gathered were consolidated, tabulated and analyzed using the analysis of
Variance for Completely Randomized Design. Treatment means were compared using
Duncans Multiple Range Test (DMRT).
Carcass Yield and Quality of Sunshine Chicken Fed with Ground Hot Pepper as Feed
Additive | CAYTAP, JANINE K. APRIL 2012
RESULTS AND DISCUSSION
Slaughter Weight, Dressed Weight,
and Dressing Percentage
Table 1 presents the slaughter weights, dressed weights and dressing percentage of
the birds in the different treatments. In terms of slaughter weights, statistical analysis
revealed that there were no significant differences between treatment means of birds given
pure commercial feed and those birds given 5-15 grams ground hot pepper /kg of
commercial feed offered to them. This means that the sample birds used in the study were
more or less of the same weight of slaughter. The birds had an overall mean slaughter
weight of 1.25 kg.
Similarly, true to both the dressed weight and the dressing percentage, no
significant differences were also observed between treatment means. Noticeable
differences are observed as percentage in the Table but such differences were still
considered small to cause significant effects as revealed by the statistical differences. The
non-significance between treatment means means that the dressed weight and the dressing
percentage of the sample birds in all the treatments were more or less the same.
Table 1. Slaughter weight, dressed weight, and dressing percentage of sample birds.
MEAN*
TREATMENT SLAUGHTER DRESSED DRESSING
WEIGHT(kg) WEIGHT(kg) PERCENTAGE(%)
Pure commercial feed 1.35a 0.79a 58.27a
5 grams ground hot pepper/kg CF 1.27a 0.73a 58.06a
10 grams of ground hot pepper/kg CF 1.17a 0.68a 58.61a
15 grams of ground hot pepper/kg CF 1.23a 0.71a 57.53a
*Mean with the same letters are not significant different at 5% level, DMRT
Carcass Yield and Quality of Sunshine Chicken Fed with Ground Hot Pepper as Feed
Additive | CAYTAP, JANINE K. APRIL 2012
The dressed weight of the birds ranged from 0.68 to 0.79 kg and the dressing
percentage ranged from 57.53 to 58.61 %. The dressed weight did not include both the
weights of the head and feet so that in terms of dressing percentage, it appears that the
values obtained were very much lower compared to the average dressing percentage of
broiler chickens.
Major Meat Cuts Yields
Table 2 presents the weight of the major meat cuts namely the back, breast, wings
and legs expressed as percentage of the slaughter weight. True to all the above parameters,
no significant differences were obtained between treatment means. This implied that the
weight of the major meat cuts expressed as percentage of the slaughter weight were more
or less similar. It is also implied that though there are noticeable differences between
treatment means as presented in the Table, such difference were still considered small to
cause significant effects. Moreover it is also implied that the addition of the ground hot
pepper into the feeds of the birds at the level of 5-15 grams/kg commercial feed did not
affect the weights of the major cuts.
Table 2. Weight of the back, breast, wings and legs expressed as percentage of the slaughter
weight of sample birds (%)
MEAN*
TREATMENT BACK BREAST WINGS LEGS
Pure commercial feed 14.51a 17.76a 8.52a 18.36a
5 grams ground hot pepper/kg CF 12.84a 17.84a 8.74a 19.74a
10 grams of ground hot pepper/kg CF 12.74a 17.52a 9.31a 20.02a
15 grams of ground hot pepper/kg CF 12.04a 19.22a 8.92a 19.21a
*Mean with the same letters are not significant different at 5% level, DMRT
Carcass Yield and Quality of Sunshine Chicken Fed with Ground Hot Pepper as Feed
Additive | CAYTAP, JANINE K. APRIL 2012
Minor Meat Cuts Yields
The weight of the minor meat cuts namely the feet, neck and head in the different
treatments are shown in Table 3. It is shown in the Table that there were no significant
differences between treatment means in the percent weight of the feet and neck. Which
means that the addition of ground hot pepper into the feeds of the birds at the level of 5-15
g/kg feed did not affect the weight of the feet and neck. There are noticeable differences,
as presented in the Table, however, such differences were still considered small to cause
significant differences. A significant effect was observed in the percent weight of the head.
One probable cause of this significant is due to the inaccuracy how the head was cut but
most likely this was caused by the differences in cutting the head and not due to the
inclusion of ground hot pepper into the feeds of the birds.
Table 3. Weights of the feet, neck and head expressed as percentage of the slaughter weight
of sample birds (%)
MEAN*
TREATMENT FEET NECK HEAD
Pure commercial feed 4.68a 4.33a 3.33b
5 grams ground hot pepper/kg CF 4.93a 4.08a 3.83ab
10 grams of ground hot pepper/kg CF 7.22a 4.14a 4.44a
15 grams of ground hot pepper/kg CF 5.02a 4.02a 3.40b
*Mean with the same letters is not significant different at 5% level, DMRT
Carcass Yield and Quality of Sunshine Chicken Fed with Ground Hot Pepper as Feed
Additive | CAYTAP, JANINE K. APRIL 2012
Yield of the Internal Organs
The weight of internal organs as percentage of the slaughter weight of the birds in
all treatments are presented in Table 4 and 5. Similar to the major meat cuts, statistical
analysis revealed no significant differences between treatment means in the percent weight
of GIT (full and empty), gizzard, liver and the heart. This implied that the percent weight
of the above internal organs of the birds in different treatments were more or less similar.
It is also implied that adding ground hot pepper into the ration of the birds at the level of
5-15 g/kg feed probably did not cause any adverse effect on the growth or development of
such organs for these to be more or less of the same percent weight. The mean percentage
of the internal organs was 10.41 % and 6.99 % for the GIT, (full and empty), respectively;
2.90% for the gizzard, 1.01 % for the heart and 2.66 % for the liver.
Figure 7 shows the percentage of meat cuts and entrails.
Table 4. Weight of the GIT (full and empty) and gizzard as percentage of the slaughter
weight of sample birds (%)
MEAN*
TREATMENT FULL GIT EMPTY GIT GIZZARD
Pure commercial feed 7.17a 5.64a 2.98a
5 grams ground hot pepper/kg CF 11.27a 7.53a 3.34a
10 grams of ground hot pepper/kg CF 12.17a 8.56a 2.86a
15 grams of ground hot pepper/kg CF 11.04a 6.23a 2.43a
*Mean with the same letters are not significant different at 5% level, DMRT
Carcass Yield and Quality of Sunshine Chicken Fed with Ground Hot Pepper as Feed
Additive | CAYTAP, JANINE K. APRIL 2012
Table 5. Weights of the heart and liver expressed as percentage of slaughter weight of the
sample birds (%)
MEAN*
TREATMENT HEART LIVER
Pure commercial feed 1.12a 2.34a
5 grams ground hot pepper/kg CF 0.95a 3.03a
10 grams of ground hot pepper/kg CF 1.14a 2.86a
15 grams of ground hot pepper/kg CF 0.83a 2.43a
*Mean with the same letters are not significant different at 5% level, DMRT
Meat Cuts as Percentage Serie
of Slas1,
ug liver
hter , 2.66
We ,
ight
Series1, gizzard,
3%
Series1, heart,
Series1, neck,
Series1, head,
2.99, 3%
1.01, 1%
4.14, 4%
3.37, 3%
Series1, feet,
5.47, 6%
Series1,
empty GIT,
6.99, 7%
Series1, legs,
19.33, 20%
Series1, wings,
8.87, 9%
Series1, breast,
18.09, 19%
Series1, full GIT,
10.41, 11%
Series1, back,
13.03, 14%
Figure 7. Pie Graph of Meat Cuts and Entrails
Carcass Yield and Quality of Sunshine Chicken Fed with Ground Hot Pepper as Feed
Additive | CAYTAP, JANINE K. APRIL 2012
Sensory Quality Attributes
Appearance. Table 6 shows the ratings for appearance of the meat in the different
treatment. Statistical analysis revealed no significant differences between treatment means
which indicates that the appearance of the meat in the different treatments were more or
less similar. It also implied that the ground hot pepper added to the ration of the birds at
the level of 5-15 g/kg feed did not alter the appearance of the meat. In verbal description,
the meat samples in the different treatment were all rated as desirable in appearance by the
member of the panel of tasters.
Aroma. Table 7 shows the aroma of the meat samples in the different treatments as
evaluated by the panel of tasters. It appears that there are significant differences between
treatment means. McWilliams (2003) cited that, the volatility and detection of aroma are
related to the temperature of food. It is the high temperature tends to volatize aromatic
compounds making them apparent for judging. However, in verbal description the meat
aromas of the samples in the different treatments were all rated liked very much.
Table 6. Appearance of the cooked meat samples in the different treatments
TREATMENT MEAN* VERBAL DESCRIPTION
Pure commercial feed 2.54a Desirable
5 grams ground hot pepper/kg CF 2.60a Desirable
10 grams of ground hot pepper/kg CF 2.56a Desirable
15 grams of ground hot pepper/kg CF 2.54a Desirable
*Mean with the same letters are not significant different at 5% level, DMRT
Carcass Yield and Quality of Sunshine Chicken Fed with Ground Hot Pepper as Feed
Additive | CAYTAP, JANINE K. APRIL 2012
Table 7. Aroma of the cooked meat samples in the different treatments
TREATMENT MEAN* VERBAL DESCRIPTION
Pure commercial feed 2.64bc Like very much
5 grams ground hot pepper/kg CF 2.54a Like very much
10 grams of ground hot pepper/kg CF 2.68c Like very much
15 grams of ground hot pepper/kg CF 2.56ab Like very much
*Mean with the same letters are not significant different at 5% level, DMRT
Tenderness. Table 8 presents the ratings for tenderness of the meat samples in the
different treatments. Similar to appearance statistical analysis revealed no significant
differences between treatment means. This means also that the tenderness of the meat
samples from the different treatment was more or less the same and adding 5-15g of ground
hot pepper for every kilogram of feed offered to the birds did not reduce nor improve the
tenderness of the meat. The meat samples in the different treatments were all rated verbally
as slightly tender.
Table 8. Tenderness of the cooked meat samples in the different treatments
TREATMENT MEAN* VERBAL DESCRIPTION
Pure commercial feed 2.40a Slightly tender
5 grams ground hot pepper/kg CF 2.38a Slightly tender
10 grams of ground hot pepper/kg CF 2.43a Slightly tender
15 grams of ground hot pepper/kg CF 2.33a Slightly tender
*Mean with the same letters are not significant different at 5% level, DMRT
Carcass Yield and Quality of Sunshine Chicken Fed with Ground Hot Pepper as Feed
Additive | CAYTAP, JANINE K. APRIL 2012
Juiciness. The juiciness of the meat samples in the different treatment are presented
in Table 9. No significant differences among treatment means were revealed by the
statistical analysis. This means that meat samples from the different treatment had more or
less the same juiciness. Also, it means that the ground hot pepper, when added into the diet
of the birds at the level of 5-15 g/kg feed, does not affect the juiciness of the meat of such
birds when slaughtered. In verbal description, the meat samples in the different treatments
were all rated slightly juicy.
Flavor. Table 10 shows the ratings for flavor of the meat samples from the different
treatments. Statistically, no significant differences were observed between treatment means
indicating that the meat from the different treatments had more or less the same flavor. It
also indicates that the ground hot pepper, when added into the diets of the birds at the level
of5-15 g/kg feed, did not affect the flavor of the meat. However, in verbal description the
meat samples derived from birds given pure commercial feed was rated very good while
the meat samples derived from birds given ground hot pepper were rated as good only.
Table 9. Juiciness of the cooked meat samples in the different treatments
TREATMENT MEAN* VERBAL DESCRIPTION
Pure commercial feed 2.44a Like moderately
5 grams ground hot pepper/kg CF 2.45a Like moderately
10 grams of ground hot pepper/kg CF 2.33a Like moderately
15 grams of ground hot pepper/kg CF 2.34a Like moderately
*Mean with the same letters are not significant different at 5% level, DMRT
Carcass Yield and Quality of Sunshine Chicken Fed with Ground Hot Pepper as Feed
Additive | CAYTAP, JANINE K. APRIL 2012
Acceptability. Table 11 presents the overall acceptability of the meat samples in the
different treatments as evaluated by the panel of tasters. Statistical analysis showed that
there were no significant differences among treatment means. However, in verbal
description, the meat samples derived from birds given ground hot pepper were liked very
much by the panel of tasters while the meat samples derived from birds given pure
commercial feeds or given no ground hot pepper were liked moderately.
Table 10. Flavor of the cooked meat samples in the different treatments
TREATMENT MEAN* VERBAL DESCRIPTION
Pure commercial feed 2.50a Very good
5 grams ground hot pepper/kg CF 2.43a Good
10 grams of ground hot pepper/kg CF 2.38a Good
15 grams of ground hot pepper/kg CF 2.36a Good
*Mean with the same letters are not significant different at 5% level, DMRT
Table 11. Acceptability of the cooked meat samples in the different treatments
TREATMENT MEAN* VERBAL DESCRIPTION
Pure commercial feed 2.49a Like moderately
5 grams ground hot pepper/kg CF 2.56a Like very much
10 grams of ground hot pepper/kg CF 2.50a Like very much
15 grams of ground hot pepper/kg CF 2.50a Like very much
*Mean with the same letters are not significant different at 5% level, DMRT
Carcass Yield and Quality of Sunshine Chicken Fed with Ground Hot Pepper as Feed
Additive | CAYTAP, JANINE K. APRIL 2012
SUMMARY, CONCLUSION, RECCOMMENDATION
Summary
The study was conducted to determine the effect of ground hot pepper on the
carcass yield and quality of Sunshine chicken.
Specifically, the study aimed to determine the effect of ground hot pepper on the
dressing percentage and carcass quality Sunshine chickens fed with different levels of
ground hot pepper through organoleptic test. The treatments were as follows. Pure
commercial feeds, 5g ground hot pepper per kg of commercial feeds, 10g ground hot
pepper per kg of commercial feeds and 15g ground hot pepper per kg of commercial feeds.
The dressed weight range from 0.68 to 0.79 kg and the dressing percentage ranged from
57.53 to 58.61 % (feet and head off). No significant differences were also observed in the
weight of the major meat cuts yields namely the back, breast, wings and legs expressed as
percentage of the slaughter weight. The percent back range from 12.04 to 14.57 %; 17.52
to 19.22 % for percent breast, 8.52 to 9.31 % for percent wings, and 18.36 to 20.02 % for
percent legs. However, no significant differences were also observed in the percent feet
and neck. Significant differences were observed on the percent head but this was caused
by the differences in cutting to separate the head from the carcass and not because of the
inclusion of ground hot pepper into the feeds of the birds.
In terms of organoleptic test, results of the study also showed that there were no
significant differences in the appearance, tenderness, juiciness, flavor and the overall
acceptability of the meat samples. Significant differences were observed in the aroma as
revealed by the statistical analysis. However the aroma of the meat samples in all the meat
sample in all the treatments were liked very much.
Carcass Yield and Quality of Sunshine Chicken Fed with Ground Hot Pepper as Feed
Additive | CAYTAP, JANINE K. APRIL 2012
Conclusion
Based on the results of the study it is therefore concluded that the carcass yield and
quality of the meat of Sunshine chickens were not affected when birds are fed with ground
hot pepper at the level of 5-15g /kg of commercial feeds.
Recommendation
Based on the result of the study, ground hot pepper may be fed to broilers at the
levels of 5-15g /kg of commercial feed because of its effect on the growth of the birds but
not on carcass quality.
Carcass Yield and Quality of Sunshine Chicken Fed with Ground Hot Pepper as Feed
Additive | CAYTAP, JANINE K. APRIL 2012
LITERATURE CITED
COMA, V. 2000. Feeding Guidelines for Meat and Pig Progress 16. Carcass Yield And
Quality Of Cob And Hubbard Broilers Fed With Varying Levels Of Okara. P. 5.
GILL, C. 2000. Originally Dutch, Feed International 21 (4):63 Retrieved From BS Thesis
Carcass Yield And Quality Of Cobb And Hubbard Broilers Fed With Varying
Level Okara (Soybean Pulp). P. 6.
HOWARD L. R., TALCOTTS. T. BRENESC. H., VILLALON B., 2000. Changes In
Photochemical and Antioxidant Activity of Selected Pepper Cultivars (Capsicum
Species) As Influenced By Maturity. Agric. Food Chem. 48:1713-1720.
KOGURE K., GOTO S., NISHIMURA M. and YASUMOTO, 2002. Mechanics of
Potent Antiperoxidative Effect of Capsaisin. Bioch. Acta, 1573:84-92
LONG A. C., MEDEIROS D. M., 2001. Evaluation of Capsaicin Use in Analgesic
Medicine. Nutraceuticals, 3: 39-46.
MCWILLIAMS, M. 2008. Food Experimental Perspective Person Education, Inc., Upper
Saddle River, New Jersey.
PARIS, C. G. 1998. Correlation Analysis between Live Weight and Some Related
Dressed Carcass and Turkey. Bs Thesis Benguet State University La Trinidad
Benguet. P.#5
PAUL, A. A. and D. A. T., SOUTHGATE. 1978. Mccance and Widdowson’s the
Composition of Foods., 4th Ed. London: Hm Stationery Office
QUISUMBING, E., 1978. Medicinal Plants of the Philippines. Katha Publishing Co.,
Inc., Quezon City. Pp. 836-838
SUMATHY KUTTY, M.A. AND A.G. MATTEW. 1987. Chili Processing, India Cocao,
Areca nut and Spice Journal 7. P. 112-113.
SZOCSANYI J., 2004. Forty Years in Capsaicin Research for Sensory Pharmacologogy
and Physiology. Neuropeptides, 38: 377-384.
VERBEKE W, VIANE J. BELIEFE. 1999. Attitude and Behavior towards Fresh Meat
Consumption in Belgium; Empirical Evidence from A Consumer Study. Food
Quality and Preference. 1999; Vol. 10:437-45.
Carcass Yield and Quality of Sunshine Chicken Fed with Ground Hot Pepper as Feed
Additive | CAYTAP, JANINE K. APRIL 2012