The effect of sex and rearing system on carcass composition and cut yields of broiler chickens

Author:

Bogosavljevic-Boskovic S.,Kurcubic V.,MD Petrovic,Radovic V.

Abstract

The objective of this study is an analysis of meat quality in broilers of standard fast-growing hybrid Hybro G, reared in two different non-industrial systems (extensive rearing in a poultry house or &ldquo;extensive indoor&rdquo; system and rearing in a poultry house using a free range or &ldquo;free-range&rdquo; system). Quality parameters, i.e. proportions of basic carcass parts (breasts, drumsticks and thighs), abdominal fat, and proportions of basic tissues (muscles, bones and skin) in more valuable carcass parts, were investigated. The aim of the investigation was to analyse the effect of the two non-industrial rearing systems and broiler sex on the above-mentioned traits of broiler meat quality. The used rearing systems (free-range and extensive indoor ones) did not have a statistically significant effect on the proportions of major basic carcass parts and of abdominal fat in broiler chickens (P &gt; 0.05). Heavier carcasses at slaughter (on the 56<sup>th</sup> day of fattening) were recorded in the male broilers compared to the female ones, the differences being statistically significant (P &lt; 0.01). The drumstick proportion in the male broiler carcasses was statistically significantly higher (P &lt; 0.05) than the proportion in the female broilers. The interaction between the investigated effects (of sex and rearing system) did not exert a statistically significant effect on the proportions of major basic carcass parts and abdominal fat in broiler chickens (P &gt; 0.05). The rearing system (free-range and extensive indoor) and the interaction between the investigated effects (of sex and rearing system) did not affect statistically significantly the differences expressed in the meat, skin and bone proportions in breasts, drumsticks and thighs of the broilers (P &gt; 0.05). The sex effect on the skin proportions in breasts, drumsticks and thighs was not statistically significant (P &gt; 0.05). Average muscle proportions in drumsticks and thighs of the female broilers were statistically highly significantly (P &lt; 0.01) and significantly (P &lt; 0.05) higher compared to those in the male broilers. Average bone proportions in the breasts of the male broilers were statistically significantly higher (P &lt; 0.05) than those in the female ones, and statistically highly significantly higher (P &lt; 0.01) in drumsticks and thighs. &nbsp;

Publisher

Czech Academy of Agricultural Sciences

Subject

Animal Science and Zoology

同舟云学术

1.学者识别学者识别

2.学术分析学术分析

3.人才评估人才评估

"同舟云学术"是以全球学者为主线,采集、加工和组织学术论文而形成的新型学术文献查询和分析系统,可以对全球学者进行文献检索和人才价值评估。用户可以通过关注某些学科领域的顶尖人物而持续追踪该领域的学科进展和研究前沿。经过近期的数据扩容,当前同舟云学术共收录了国内外主流学术期刊6万余种,收集的期刊论文及会议论文总量共计约1.5亿篇,并以每天添加12000余篇中外论文的速度递增。我们也可以为用户提供个性化、定制化的学者数据。欢迎来电咨询!咨询电话:010-8811{复制后删除}0370

www.globalauthorid.com

TOP

Copyright © 2019-2024 北京同舟云网络信息技术有限公司
京公网安备11010802033243号  京ICP备18003416号-3