在养Acacia mearnsii的奶牛中评估肠道甲产量
Lindokuhle C Mhlongo1,2, Ignatius V Nsahlai2
1Department of Animal Science, University of the Free State, Bloemfontein, South Africa.
Journal of advanced veterinary and animal research
|December 2, 2025
概括
将Acacia mearnsii料纳入奶牛的饮食中,显著减少了每单位营养摄入量的甲排放. 阿卡西亚梅恩西 (Acacia mearnsii) 桑宁提取物没有影响奶牛的甲产量.
科学领域:
- 动物科学动物科学
- 类动物营养 类动物营养
- 环境科学 环境科学
背景情况:
- 乳制品农业有助于温室气体排放,特别是肠道发酵产生的甲.
- 减轻反动物甲产生的策略对于环境可持续性至关重要.
- 阿卡西亚梅恩西 (Acacia mearnsii) 的料和其 tannin 提取物是减少甲的潜在料添加剂.
研究的目的:
- 评估玉米料中的Acacia mearnsii料 (AM) 和颗粒中的A. mearnsii素提取物 (AME) 对乳牛的反动物甲 (CH4) 生产的影响.
- 为了确定不同含量水平的AM和AME对相对于营养摄入的CH4产量的影响.
主要方法:
- 一个完全随机的设计被用于24个杂交的荷尔斯坦-弗里西亚和泽西奶牛每次实验.
- 实验1:给奶牛食含有0%,0.75%,1.5%或3.0%AME的颗粒.
- 实验2:奶牛被以0%,5%,15%或25%的玉米料. 在经过14天的适应期后,测量了鲁米纳气体产量.
主要成果:
- 加入A. mearnsii素提取物 (AME) 没有影响肠道甲 (CH4) 产量.
- A. mearnsii料 (AM) 的含量减少了每种营养摄入量的CH4 (DM,OM,CP,ADF,NDF),除了CH4 (每天每头母牛的%体积).
- 在每摄入干物质,中性清洁剂纤维,酸性清洁剂纤维和有机物质的CH4上观察到AM含量的线性和二次效应.
结论:
- A. mearnsii素提取物 (AME) 在减少奶牛的甲排放方面无效.
- A. mearnsii forage (AM) 有效地降低了奶牛的肠道甲排放,特别是当表达为每单位营养摄入量时.
- 在饮食中加入AM是减轻乳牛甲排放的有希望的策略.
关键词:
亚 Acacia 的意思是指的.CH4 CH4 CH4 CH4 CH4 CH4 CH4 CH4 CH4 CH4 CH4 CH4 CH4 CH4 CH4 CH4 CH4 CH4 CH4 CH4 CH4 CH4 CH4 CH4 CH4 CH4 CH4 CH4 CH4 CH4 CH4 CH4 CH4 CH4 CH4 CH4 CH4 CH4 CH4 CH4 CH4 CH4 CH4 CH4 CH4 CH4 CH4 CH4 CH4 CH4 CH4 CH4 CH4 CH4 CH4 CH4 CH4 CH4 CH4 CH4 CH4 CH4 CH4 CH4 CH4 CH4 CH4 CH4 CH4 CH4 CH4 CH4 CH4 CH4 CH4 CH4 CH4 CH4 CH4 CH4 CH4 CH4 CH4 CH4 CH4 CH4 CH4 CH4 CH4 CH4 CH4 CH4 CH4 CH4 CH4 CH4 CH4 CH4 CH4 CH4 CH4 CH4 CH4 CH4 CH4 CH4 CH4 CH4 CH4 CH4 CH4 CH4 CH4 CH4 CH4 CH5 CH4 CH4 CH4 CH4 CH4 CH4 CH4 CH4 CH4 CH4 CH4 CH4 CH4 CH4 CH4 CH4 CH4 CH4 CH4 CH4 CH4 CH4 CH4 CH4 CH4 CH4 CH4 CH4 CH4 CH4 CH4 CH4 CH5 CH4 CH4 CH4 CH4 CH4 CH4 CH4 CH4 CH4 CH4 CH4 CH5 CH4 CH4 CH4 CH4 是一个人可能是什么意思是什么意思是什么意思是什么意思温室气体的温室气体是什么rumen头空间气体的空间气体色素 (tannin) 是一种色素.更多相关视频
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