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葡萄作为替代大豆在玉米料为基础的饮食中的奶牛牛奶牛
António J M Fonseca1, Ana R J Cabrita1
1REQUIMTE, LAQV, ICBAS, School of Medicine and Biomedical Sciences, University of Porto, Rua Jorge Viterbo Ferreira 228, 4050-313 Porto, Portugal.
干葡萄 (DGP) 可以在乳牛饮食中取代大豆,而不会影响牛奶产量. DGP表现出较低的乳头可降解性,但提供可持续的料资源,支持循环经济原则.
科学领域:
- 动物科学动物科学
- 类动物营养 类动物营养
- 可持续农业 可持续农业
背景情况:
- 豆是奶牛常见的料成分.
- 葡萄末是酒的副产品,有可能作为牲畜料.
- 评估替代性料对于可持续的奶牛养殖和废物利用至关重要.
研究的目的:
- 评估乳牛饮食中用干葡萄糖 (DGP) 取代大豆皮的影响.
- 评估对料摄入量,牛奶产量,牛奶成分和乳头 (N) 可降解性的影响.
- 探索DGP作为循环经济框架内的可持续料资源的潜力.
主要方法:
- 一个3×3拉丁方形的设计,有三个霍尔斯坦牛和三个玉米化基饮食 (0%,3%,6% DGP).
- 现场化被用来确定干物和料成分的N可降解性.
- 测量包括料摄入量,牛奶产量和成分,以及23天期间的小牛皮参数.
主要成果:
- 与大豆皮相比,干葡萄 (DGP) 的纤维含量更高,在现场干物和N可降解性更低.
- 牛奶尿素和牛肉短链脂肪酸在含有DGP时显示出二次反应.
- 豆粉的可降解性倾向于随着更高的DGP含量而增加,这表明在皮中存在相互作用.
结论:
- 干葡萄末 (DGP) 可以纳入奶牛的饮食,而不会对牛奶的产量或成分产生负面影响.
- 尽管皮降解率较低,但DGP是一种可行的,可持续的料成分,支持循环经济和减少废物.
- 建议进行进一步的研究,包括omics和微生物群分析,以充分了解DGP对功能的影响.
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