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补充益生菌,后生菌和它们的组合对肉的生长,屠宰变量,器官发育,肠道形态和菌群的影响
Xin Zhu1, Xinjie Zhang1, Yong Zhang2
1College of Animal Science and Veterinary Medicine, Shenyang Agricultural University, Shenyang, 110866, China.
Probiotics and antimicrobial proteins
|April 9, 2025
概括
饮食中的Bacillus subtilis (益生菌) 和非活化的Lactobacillus plantarum (后生菌) 改善了 brojler 的生长,性能和肠道健康. 它们的组合没有显示出协同效应,但仍然增强了肉关键参数.
科学领域:
- 动物科学动物科学
- 微生物学 微生物学
- 营养科学 营养科学
背景情况:
- 禽畜生产依赖于优化 brojler 的生长和健康.
- 肠道微生物群调节对于提高料效率和抗病能力至关重要.
- 益生菌和后生菌被探索为动物料中抗生素的替代品.
研究的目的:
- 评估Bacillus subtilis (益生菌) 和非活化的Lactobacillus plantarum (后生菌) 单独或组合对 brojler 的表现的影响.
- 调查对免疫器官发育,肠道形态和肠道微生物群组成的影响.
- 为了确定益生菌和后生菌之间是否存在协同作用或添加作用.
主要方法:
- 一项为期42天的养试验,对480只肉进行了试验,分为四组:对照,益生菌,后生菌和组合.
- 饮食补充了可行的B. subtilis,热杀死的L. plantarum或它们的混合物.
- 评估了生长参数,屠宰性能,器官指数,肠道形态学 (维卢斯高度/密室深度) 和部微生物群分析.
主要成果:
- 益生菌和后生菌组显示体重增加,每日增加和脱衣百分比增加,料转换率改善.
- 这两种治疗都提高了免疫器官指数 (脏,Fabricius的囊) 和小肠发育.
- 肠的高度/密室深度比率增加;内微生物群分析显示细菌的丰度发生了变化 (例如,更高的Desulfovibrio,更低的Proteobacteria组合).
结论:
- 用可活的B. subtilis和非活化的L. plantarum进行食补充,可以单独改善肉生长,屠宰性能,器官发育,肠道形态和肠道微生物群.
- 与单独补充相比,B. subtilis和L. plantarum的组合没有显示出协同作用或添加效益.
- 进一步的研究可能会探索不同的剂量或组合,寻找潜在的协同效应.
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