四重益生菌混合物对羊的反发酵,营养物质降解性和甲排放的影响:一个体外研究
Ali S A Saleem1, Khaled M Al-Marakby2, Mohamed Y Elaref3
1Animal Production Department, Faculty of Agriculture, Sohag University, Sohag, Egypt. ali.saleem1706@gmail.com.
AMB Express
|October 3, 2025
概括
四种菌株的益生菌,Bacillus licheniformis,Lactobacillus acidophilus,L. bulgaricus和Bifidobacterium bifidum (ABLB),改善了绵羊的起发酵和营养分解性. 这些多菌株益生菌混合物有效地减少了甲排放,并在反动物系统中提高了能源利用率.
科学领域:
- 的微生物学和营养.
- 动物科学与环境可持续性
- 减轻畜牧业甲排放的减缓方法
背景情况:
- 动物畜牧业对全球甲排放做出了重大贡献,需要可持续的缓解策略.
- 饮食干预措施,特别是益生菌,对调节乳头功能和减少甲产生的承诺.
- 之前的研究集中在单株或双株益生菌上,使多株配方的协同作用潜力未被探索.
研究的目的:
- 评价多菌株益生菌混合物对羊发酵,营养物质可降解性和甲排放的影响.
- 为了比较两种不同的四方菌株益生菌配方 (ABLB和CPSB) 在两种度中的疗效.
- 评估益生菌对体外干物质可降解性 (IVDMD),纤维可降解性 (IVCFD),挥发性脂肪酸 (TVFA) 和原生动物数量的影响.
主要方法:
- 采用了体外气体生产技术,使用完全随机的羊设计.
- 没有益生菌的基础饮食作为对照.
- 两个益生菌混合物ABLB (Bacillus licheniformis,Lactobacillus acidophilus,L. bulgaricus,Bifidobacterium bifidum) 和CPSB (Lactobacillus casei,Lactobacillus plantarum,Bacillus subtilis,Bifidobacterium bifidum) 补充了2x10^9和4x10^9 CFU/g的时间.
主要成果:
- 益生菌补充剂显著增强了IVDMD和IVCFD,ABLB治疗显示出最明显的效果.
- 甲产量和氨-N度降低,而总挥发性脂肪酸 (TVFA) 增加,这表明乳头发酵效率有所提高.
- 在接受益生菌治疗的群体中,原生动物数量显著下降,这表明微生物调节作为甲减轻机制. 可代谢能量 (ME),哺乳期净能量 (NEL) 和有机物消化率 (OMD) 的预测值得到了改进.
结论:
- 有针对性的多菌株益生菌配方,特别是ABLB,可以有效地改善羊的功能,营养利用和能量代谢.
- 益生菌提供了一种可持续的策略,通过调节 rumen 微生物种群来缓解反动物牲畜的甲排放.
- 这些发现支持使用特定的益生菌混合物来提高反动物生产系统的效率和环境可持续性.
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