子加工副产品分级养对体特征和羊羔肉质量的影响
Felipe J S Silva1, Dorgival M Lima Júnior2, Beatriz D O Fernandes1
1Department of Animal Science, Federal University of Paraiba, Areia, PB 58397-000, Brazil.
在羔羊料中包括子中皮 (CMS) 可以改变肉质. 建议在养场的羊羔中加入高达4.8%的CMS,以改善脂肪酸概况,而不会对尸体特征产生负面影响.
科学领域:
- 动物科学动物科学
- 肉类科学 肉科学
- 农业副产品 农业副产品
背景情况:
- 子中皮 (CMS) 是一个丰富的农业副产品.
- 在动物料中使用CMS可以为传统料成分提供可持续的替代品.
研究的目的:
- 评估CMS在养羊的饮食中含有不同水平的CMS的影响.
- 确定CMS对尸体特征和肉质特征的影响.
主要方法:
- 35只羔羊被随机分配到五个饮食治疗组,CMS水平从0%到19.2%不等.
- 羊羔被养了71天,然后屠宰和对尸体特征和长腰肌肉质量进行分析.
- 在整个研究过程中,对干物质摄入量和动物表现进行了监测.
主要成果:
- 更高的CMS水平降低了干物质的摄入量和羊羔的整体表现.
- 加入CMS显著改变了Longissimus lumborum肌肉的脂肪酸概况,减少和脂肪酸,增加多不和脂肪酸.
- 随着CMS的加入,trans-10与trans-11 vaccenic acid (t10/t11-18:1) 的比率增加,而仪器色彩描述器没有受到影响.
结论:
- 在养羊群中,可以推CMS的食含量高达4.8%.
- 这种含量水平会对肉类脂肪酸成分产生积极影响,而不会对尸体的特征或颜色产生不利影响.
- 进一步的研究可能会探索CMS的最佳处理方法,以减轻在更高的纳入率下负面的绩效影响.
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