植物生物,益生菌及其组合作为料添加剂对断奶荷尔斯坦雄性乳牛犊生长表现的影响
Ting Liu1, David P Casper2,3, Jiang Hu1
1College of Animal Science and Technology, Gansu Agricultural University, No. 1 Yingmen Village Anning, Lanzhou 730070, China.
Animals : an open access journal from MDPI
|April 26, 2025
概括
一种益生菌改善了年轻的霍尔斯坦牛犊的体重增加,但单独使用或与益生菌结合使用的植物益生菌提取物并没有提高生长性能. 特定的添加剂对小牛的生长没有好处.
科学领域:
- 动物科学动物科学
- 类动物营养 类动物营养
- 畜牧业管理 畜牧管理
背景情况:
- 已知植物生物提取物 (PE) 和益生菌 (EX) 可以改善小牛的肠道健康和生长.
- 结合PE和EX对断奶后小牛生长的潜在协同效应尚未被探索.
研究的目的:
- 评估植物生菌提取物 (PE) 和益生菌 (EX) 单独或组合的疗效,对断奶后的霍尔斯坦小牛的生长性能.
主要方法:
- 七十七只荷尔斯坦雄性小牛被分配给四种饮食治疗:对照,PE,EX或PE加EX.
- 牛犊被食小牛初始饮食3周,每周监测体重,平均每日增加,干物质摄入量和料转化.
主要成果:
- 与对照组和PE组相比,养益生菌 (EX) 的小牛的体重显著增加.
- 平均每日收益显示出EX补充剂改善的趋势.
- 干物摄入量,料转化和血液尿素度在治疗方法之间没有显著差异.
结论:
- 用益生菌 (EX) 补充剂在断奶后的霍尔斯坦雄性小牛中改善了体重增加.
- 植物生物提取物 (PE),无论是单独使用还是与益生菌结合使用,都没有为小牛的生长性能提供额外的好处.
- 该研究表明,虽然益生菌可以增强小牛的生长,但使用的特定植物生物提取物没有提供协同或独立的优势.
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