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活多菌株益生菌通过调节肠道形态和微生物群在断奶小猪群中的生长性能来提高生长性能
Chao-Wei Huang1, Shi-Yong Liu1, Bishnu Prasad Bhattarai1
1Department of Tropical Agriculture and International Cooperation, National Pingtung University of Science and Technology, Pingtung 91201, Taiwan.
Microorganisms
|November 27, 2024
概括
活生生的多菌株益生菌显著提高了断奶小猪的生长效率和肠道健康. 这些益生菌增强了肠道完整性和微生物群平衡,为控制断奶压力提供了抗生素的有希望的替代品.
科学领域:
- 动物科学动物科学
- 微生物学 微生物学
- 肠道健康 肠道健康
背景情况:
- 关于不同形式的多菌株益生菌对断奶小猪的影响的研究有限.
- 牲畜中的抗生素使用正在受到审查,需要为促进生长和健康管理提供替代方案.
研究的目的:
- 调查活 (LP) 与无生命 (IP) 多菌株益生菌对断奶小猪表现的影响.
- 评估对肠道形态,便微生物群,短链脂肪酸和肠道基因表达的影响.
主要方法:
- 160只奶小猪被分配到四个组:对照组 (CON),抗生素组 (AB),活益生菌组 (LP) 和无生命益生菌组 (IP).
- 益生菌组接受了2.0 × 10^9 CFU/kg的多菌株混合物 (Lactobacillus plantarum,Streptococcus thermophilus,Bacillus subtilis). 益生菌组接受了2.0 × 10^9 CFU/kg的多菌株混合物 (Lactobacillus plantarum,Streptococcus thermophilus,Bacillus subtilis). 益生菌组接受了2.0 × 10^9 CFU/kg的多菌株混合物. 益生菌组接受了2.0 × 10^9 CFU/kg的多菌株混合物. 益生菌组接受了2.0 × 10^9 CFU/kg的多菌株混合物.
- 评估了生长性能,肠道形态 (维卢斯高度,密室深度),便微生物群和基因表达 (TFF3,MUC2).
主要成果:
- 活益生菌 (LP) 显著降低了料转化率 (FCR) 和改善了肠道形态 (更高的毛高度/密室深度比).
- 两种LP和IP治疗都增加了Bifidobacterium和减少了肠道中的Enterobacteriaceae种群.
- LP增强了TFF3的表达,而IP增强了MUC2的表达,表明肠道完整性得到改善.
结论:
- 活生生的多菌株益生菌通过改善肠道完整性和微生物群平衡,有效地提高断奶小猪的生长效率.
- 益生菌是一种可行的抗生素替代品,可以减轻断奶压力并促进生产性表现.
- 对特定益生菌菌株及其机制进行进一步的研究是有必要的.
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