苏紫黑猪5世代屠宰性能及肉品质特性分析

Jiangsu Agricultural Sciences(2020)

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Abstract
苏紫黑猪是淮猪和外种猪杂交选育的优质肉猪.针对苏紫黑猪屠宰性能及肉品质特性,选择30头宰前活质量约100 kg的育肥猪,屠宰并测定相应指标.结果发现,经过5世代培育,苏紫黑猪屠宰率达72.09%,瘦肉率52.60%,4点背膘厚分别为32.00、23.80、21.00、22.10 mm,眼肌面积33.10 cm2;进一步的肉品质特性分析显示,宰后45 min和24 h肉色L/a/b值分为40.26/8.46/3.19、41.41/9.07/3.74,pH值由6.20下降至5.79,肌内脂肪含量4.18%,大理石评分3.96,宰后24 h滴水损失为1.92%,剪切力29.09 N.检测结果表明,苏紫黑猪产肉率及瘦肉率适中,肉品质优,适合作为市场中高端猪肉开发主流品种.研究结果为苏紫黑猪后期持续选育提供了参考依据.
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