料养小牛对表现,小牛皮发酵和营养素消化能力的影响:元分析
Jianxin Xiao1, Jia Tian1, Yingqi Peng1
1Animal Nutrition Institute, Sichuan Agricultural University, Chengdu 611130, China.
Journal of dairy science
|September 29, 2024
概括
将料给年轻小牛可以改善生长和小牛皮发育,但最佳策略取决于料类型,食方法和小牛食成分. 关键因素影响小牛表现结果的变化.
科学领域:
- 动物科学动物科学
- 类动物营养 类动物营养
- 乳牛牛犊管理 乳牛牛犊管理
背景情况:
- 关于小牛饮食中的料补充,存在不一致的发现.
- 影响年轻小牛料效率的因素需要全面调查.
- 了解这些因素对于优化小牛的生长和健康至关重要.
研究的目的:
- 进行一项元分析,调查料供应对年轻小牛的影响.
- 评估料来源,养方法,起料形式,牛奶和料水平如何影响小牛的结果.
- 确定影响生长表现和皮发酵的关键调节因素.
主要方法:
- 2000-2023年发表的36篇文章 (86个治疗比较) 的三级元分析.
- 搜索的数据库:谷歌学者,科学直接,X-Mol.
- 使用混合效应模型,调节者分析,漏斗图形和埃格尔测试来评估效应和偏差.
主要成果:
- 料补充增强了小牛的生长,结构的发展和小牛皮发酵.
- 麦干草 (OH) 和自由选择 (FC) 养显示出比草干草 (AH) 或草和TMR更大的积极效果.
- 在地面开始和断奶后的养期产生了更大的益处;最优的断奶前料水平建议在12%的DM (9%的OH/).
结论:
- 料的加入对乳牛的生长和皮功能产生了积极的影响.
- 料来源,养方法,初始形式,牛奶和料水平显著影响结果.
- 需要对AH水平和剂量反应关系进行进一步的研究,以提高一致性.
相关概念视频
Microbes in Food Production
403
Microbial fermentation is central to food biotechnology, enhancing flavor, texture, preservation, and stability. Fermentative microorganisms metabolize carbohydrates into organic acids, alcohols, and other metabolites that inhibit spoilage organisms and improve digestibility while contributing distinctive sensory qualities.In baking, amylases naturally present in flour hydrolyze starch into monosaccharides such as glucose, which Saccharomyces cerevisiae ferments anaerobically. Through...
403
Microbes in the Production of Fermented Foods
327
Lactic acid bacteria (LAB) and molds are instrumental in fermenting plant-based foods to enhance preservation and ensure year-round availability. These microbial processes convert plant carbohydrates into organic acids and other metabolites that inhibit spoilage organisms and contribute to the sensory qualities of the final product.In sauerkraut production, cabbage goes through a microbial succession that starts with cocci such as Leuconostoc mesenteroides. These microbes begin fermentation by...
327


