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Effects of genotype and protease enzyme supplementation on the primal carcass cuts of chickens

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2021
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Authors
Dosković, Vladimir
Bogosavljević-Bošković, Snežana
Milošević, Božidar
Škrbić, Zdenka
Lukić, Miloš
Rakonjac, Simeon
Petričević, Veselin
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Abstract
This study compared weight and percent yields of primal carcass cuts of commercial fast-growing broiler - Cobb 500 and medium-growing broiler genotype - Master Gris. Three hundred Cobb 500 chickens and three hundred Master Gris chickens were used for the experiment. Feed and water were provided ad-libitum. Treatments were: T1 - corn-soybean meal based control diet; T2: T1 − 4.0% crude protein than in the control diet + 0.2% protease and T3: T1 − 6.0% crude protein than in the control diet + 0.3% protease. Chickens were slaughtered at 49 days of age. Medium-growing hybrid Master Gris had a lower weight of all primal carcass cuts and breast yield (as a percentage of ready-to-grill carcass weight), as well as higher thighs, drumsticks, wings and pelvis yields in comparison with the Cobb 500 broilers (P<0.05), except back yield (P>0.05). Also, the addition of protease to broiler feed had no significant effect on the weight and percent yields of primal carcass cuts (P>0.05).
Keywords:
hybrids / broilers / protease enzyme / primal carcass cuts
Source:
Proceedings of the 13th International Symposium Modern Trends in Livestock Production, October 6 – 8, 2021, Belgrade, Serbia, 2021, 516-523
Funding / projects:
  • "info:eu-repo/grantAgreement/MESTD/inst-2020/200088/RS// (RS-200088)
  • "info:eu-repo/grantAgreement/MESTD/inst-2020/200022/RS//" (RS-200022)

ISBN: 978-86-82431-77-0

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Handle
https://hdl.handle.net/21.15107/rcub_ristocar_757
URI
http://r.istocar.bg.ac.rs/handle/123456789/757
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