改善料场牛肉质量的营养规程 尼罗尔公牛在马尔布尔估计后代的不同
Luana D Felizari1, Mariana M Squizatti1, Antônio M Silvestre1
1School of Veterinary Medicine and Animal Science, São Paulo State University (UNESP), Botucatu, São Paulo, 18618-000, Brazil.
Scientific reports
|November 20, 2025
概括
营养技术对料场牛和肉质有影响. 高湿度的玉米加上脂肪酸的盐增加了高大理石化EPD公牛的肌内脂肪,而和改善了肉的颜色和稳定性.
科学领域:
- 动物科学动物科学
- 肉类科学 肉科学
- 营养生物化学 营养生物化学
背景情况:
- 优化料场牛的营养对于增强肉类质量特征至关重要,如大理石化.
- 根据预估后代差异 (EPD) 表示的,为大理石的遗传选择与营养策略相互作用.
- 了解这些相互作用可以提高牛肉生产效率和消费者满意度.
研究的目的:
- 评估不同营养技术对养场牛中大理石化前体的影响.
- 评估这些技术对各种肉质参数的影响.
- 为了研究遗传化潜力 (EPD) 和营养干预措施之间的相互作用.
主要方法:
- 一百五十只内罗尔公牛通过大理石化EPD (高或低) 来分类,并被养了112天.
- 处理包括精细磨砂玉米 (FGC) 或高湿度玉米 (HMC),含有或不含脂肪酸盐 (CSFA),以及使用有机和 (ZnCr) 的额外组.
- 肉质分析包括近距离成分,pH值,切削力,损耗,脂质氧化,颜色稳定性,脂肪酸概况和感官评估.
主要成果:
- 养HMC+CSFA的高大理石化EPD的公牛显示肌内脂肪和损失增加.
- 低EPD的公牛表现出更高的蛋白质和原蛋白含量.
- 肉类老化14天改善了柔软性;ZnCr补充剂增加了脂质氧化和零售展示期间的颜色变化.
- 脂肪酸概况受到EPD × 治疗相互作用的影响.
- 不管玉米的加工方法如何,CSFA补充剂提高了柔软度和整体满意度.
结论:
- 对于大理石的遗传倾向与养场牛的营养策略相互作用.
- 高水分玉米和CSFA有效地促进了基因高大理石公牛的肌肉内脂肪沉积.
- 和补充剂可以提高氧化稳定性和肉的颜色,但不能增强大理石本身.
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