无角夏南牛屠宰性能分析

Analysis of Slaughter Performance of Hornless Xianan Fattening Bulls

[目的]通过屠宰测定分析,了解无角夏南牛的屠宰性能和肉质品质,为下一步无角夏南牛的选育提供资料。[方法]通过对20头24月龄无角夏南牛育肥公牛进行屠宰测定和肉质分析。[结果]20头无角夏南牛的屠宰率、净肉率、眼肌面积、肉骨比、高档优质肉块比率、高档肉块率分别为:62.62%、52.8%、111.17 cm2、5.82:1、49.69%和28.36%;肩肉、大黄瓜条、外脊3个部位的蛋白质含量分别为:23.602%±0.192%、20.852%±1.212%、21.522%±1.282%;脂肪含量分别为4.262%±1.612%、3.122%±1.052%、2.802%±2.492%;肌肉剪切力分别为:4.60 kg±1.92 kg、3.59 kg±1.58 kg、4.49 kg±1.44 kg。[结论]无角夏南牛的品种培育、改良效果显著,生产高档部位肉块的能力强、肉质好。

[Objective]Through slaughtering analysis,the slaughter performance and meat quality of hornless Xianan cattle can be understood,which can provide information for the next selection of hornless Xianan cattle.[Method]Slaughter determination and meat quality analysis were performed on 2024-month-old hornless Xianan fattening bulls.[Result]The slaughter rate,net meat rate,eye muscle area,meat-to-bone ratio,high-grade and high-quality meat chunk ratio,and high-grade meat chunk ratio of 20 hornless Xianan cattle were:62.62%,52.8%,111.17 cm2,5.82∶1,49.69%and 28.36%;the protein content of shoulder meat,large cucumber strip,and outer ridge were:23.60%±0.19%,20.85%±1.21%,21.52%±1.28%;fat content were 4.26%±1.61,3.12%,respectively 3.122%±1.05%,2.80%±2.49%;muscle shear force were:4.60kg±1.92kg,3.59kg±1.58kg,4.49kg±1.44kg,respectively.[Conclusion]The breeding and improvement effect of hornless Xianan cattle is remarkable,the ability to produce high-grade meat pieces is strong,and the meat quality is good.