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PRINT: ISSN 2221-1896
ONLINE : ISSN 2223-0343
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Effect of rearing system, slaughter age and sex on turkey
(Meleagris gallopavo)
carcass components percentages
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R. M. Shamseldin1, S. Gibril2,
M. Atta2*, O. E. Yassin1 and A. A. Hassan3
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1College
of Animal Production, Sudan University of Science and Technology, Sudan;
2College of Animal Production, University of Bahri, Khartoum,
Sudan; 3College of Agricultural Technologies and Fish
Sciences, University of Al-Neelain, Sudan
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Abstract |
The objective of this study was to examine the burden of rearing system,
slaughter age and sex on slaughter body weight, carcass weight and
various carcass cuts percentages of turkeys (Meleagris gallopavo).
25 male and 24 female turkey growers were reared under semi intensive
(13 males and 12 females) or extensive systems (12 males and 12
females). Eight males and 7 females of the semi intensive group were
slaughtered at the 16th week of age and the rest of birds in
the group (5 males and 5 females) were slaughtered at the 28th
week of age. Regarding the extensive system group, 7 males and 7 females
were slaughtered at the 16th week of age, whereas 5 males and
5 females were slaughtered at the 28th week of age. The
results showed that birds slaughter at the 28th week had
higher slaughter weight, carcass weight, dressing percentage and
percentage of breast cut weight and had lower percentages of wing tip,
middle wing, drum matte, drum stick cuts weights than their fellow mates
slaughtered at the 16th week of age.
Males always excelled females in slaughter weight, carcass weight
and percentages of neck and thigh cuts weights. Only the
breast cut weight increased at significantly
faster rate than the whole carcass weight. It was increasing by 1.246%
for each 1% increase of the carcass weight. Neck and thigh cuts weight
increased at the same rate of the whole carcass weight (increase rates
of 0.995 and 0.983%). The other cuts weights had significantly lower
relative increase coefficients (ranging between 0.238 and 0.863%).
It can be concluded that the slaughter age and sex significantly
altered the percentages of the carcass components. Slaughtering at 28
weeks of age produced high yield of carcass. The system of rearing
showed an insignificant load on the carcass components percentages. It
is evident that the development of turkey’s carcass weight depended
mainly on the breast cut weight increase.
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Keywords:
Carcass; carcass components;
Turkeys |
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To cite this article:
Shamseldin RM, S Gibril, M Atta, OE
Yassin and AA Hassan,
2014.
Effect of rearing system, slaughter age and sex on turkey
(Meleagris gallopavo)
carcass components percentages.
Res.
Opin. Anim. Vet. Sci., 4(4): 198-202. |
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