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The effect of using different energy sources on growth and some carcass
characteristics in Cobb 500 broiler chicks
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Sayeed M. Akbari1, Ali A. Sadeghi1*,
Mehdi Aminafshar1,
Parvin Shawrang2 and Mohammad Chamani1 |
1Department
of Animal Science, Science and Research Branch, Islamic Azad University,
Tehran, Iran
2Nuclear
Science and Technology Research Institute, Atomic Energy Organization of
Iran
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Abstract |
The objective of the current study was to evaluate the effect of using
different energy sources on performance and some carcass characteristics
in Cobb 500 broiler chicks. A total of 600 one day-old Cobb 500 broiler
chick with an average weight of 39 ± 0.50 g was randomly allocated into
five treatments. Further each treatment was divided into four
replicates. The chicks were fed a basal diet based on corn and energy
level by Cobb 500 instruction manual as a control group, basal diet with
3% lesser energy than the control (E1), basal diet with 6% lesser energy
than the control (E2), basal diet based on corn and fat level according
to Cobb 500 instruction manual (E3), basal diet based on corn and fat
with 3% upper energy (E4) for 42 days. The result of this study showed
that there were significant differences between treatments compared to
the control group. The feed conversion ratio of broiler chicks
significantly increased (P≤0.01) by feeding E1, E2, E3 and E4. It was
observed that the performance parameters showed little but significant
differences (P≤0.01) throughout the experimental period. The result of
this study showed that carcass, breast, liver, spleen and gizzard
percentage increased by using treatments compared to the control. We
concluded that the current nutritional recommendations in Cobb 500
broiler chicks’ instruction manual are not sufficient to achieve the
best growth performance of Cobb 500 broiler chicks.
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Keywords:
Energy sources; performance; carcass characteristics; Cobb 500
broiler |
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To cite this article:
Akbari SM, AA Sadeghi, M Aminafshar, P Shawrang and M Chamani,
2016.
The effect of using different energy sources on growth and some carcass
characteristics in Cobb 500 broiler chicks.
Res.
Opin. Anim. Vet. Sci., 6(3): 84-88. |
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