基于料的酒厂副产品对杂交品种奶牛的生产绩效的影响
Endale Yadessa1, Berhan Tamir2, Getu Kitaw3
1Ethiopian Institute of Agricultural Research-Holetta Agricultural Research Center, Holetta, Ethiopia. endaleyadeassa@gmail.com.
Tropical animal health and production
|September 3, 2024
概括
酒厂的副产品在奶牛中补充料,显著增加了牛奶产量和净收入. 虽然牛奶脂肪百分比略有下降,但经济效益表明其作为乳牛可持续料成分的潜力.
科学领域:
- 动物科学动物科学
- 乳制品营养 乳制品营养
- 可持续农业 可持续农业
背景情况:
- 酒厂的副产品是牲畜的潜在料来源.
- 优化奶牛的饮食对生产率和利能力至关重要.
研究的目的:
- 评估酒厂副产品料水平上升对中期哺乳期母牛生产绩效的影响.
- 确定在奶牛的饮食中使用酒厂副产品料的经济可行性.
主要方法:
- 一个4x4的拉丁方形设计被用在弗里斯 x 博兰牛身上.
- 饮食治疗涉及不同程度的酒厂副产品料,补充了干草和缩物.
- 测量了牛奶产量,牛奶成分和经济回报.
主要成果:
- 每日牛奶产量随着酒厂副产品料的含量增加而显著增加 (T4: 13.9 L,T3: 13.8 L).
- 牛奶脂肪百分比呈现下降趋势,化水平增加,但其他牛奶成分保持不变.
- 最高的净收入和边际收益率是通过最高的料含量率 (牛奶产量为0.7公斤/升) 实现的.
结论:
- 酒厂副产品料有效提高奶牛的牛奶产量和利能力.
- 需要进一步研究对生殖能力和牛奶微生物质量的长期影响.
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