早期使用益生菌对肉的性能参数,肠道健康和微生物群的积极影响

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M Hussain¹, O Aizpurua², A Pérez de Rozas³

¹IRTA, Animal Nutrition, Mas Bové, 43120 Constantí, Catalonia, Spain; MoBioFood Research Group, Department of Biochemistry and Biotechnology, Universitat Rovira i Virgili, c/Marcel·lí Domingo n°1, 43007 Tarragona, Spain.

Poultry science

|November 3, 2024

概括

仅用10天的益生菌改善了家禽的生长性能,类似于抗生素增长促进剂. 这突出了益生菌作为动物生产中抗生素的有效替代品,促进肠道健康和可持续性.

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:

在动物生产中使用抗生素会导致抗菌素耐药性,因此需要替代方法来维持生产力和动物健康.
益生菌被探索为替代抗生素增长促进剂 (AGPs) 在家禽.
了解益生菌机制是优化它们在家禽养殖中的使用的关键.

研究的目的:

研究三种特定益生菌菌株 (Enterococcus faecalis CV1028, Bacteroides fragilis GP1764和Ligilactobacillus salivarius CTC2197) 对家禽表现,肠道微生物群和肠道健康的影响.
在家禽挑战模型中,比较益生菌混合物与抗生素增长促进剂 (AGP) 的疗效.
为了确定益生菌在家禽中最佳的服用时间.

主要方法:

进行了两项体内试验,使用基于小麦-大豆-麦的饮食来挑战家禽,诱导轻度至中度的肠道炎症.
试验1:对个别益生菌菌株 (EntF,BacF,LacS) 与负对照进行评估.
试验2:比较一个益生菌混合物 (EntF+BacF+LacS) 和一个AGP (-Bacitracin) 用于10或35天与负对照.

主要成果:

在试验1中的个人益生菌在8天后显示了料转化率 (FCR) 的短暂改善,这些改善没有持续.
在第二个试验中,10天和35天的益生菌治疗显著改善了FCR,与AGP组的疗效相匹配.
微生物群分析显示,在AGP和益生菌组之间,在7天的微生物组成是不同的,但在21天没有,这表明不同的作用模式和生命早期的重要性.

结论:

短期服用益生菌 (10天后服用) 足以实现与家禽长期使用AGP相比的性能改善.
益生菌混合物和AGP对肠道微生物群产生不同的影响,特别是在早期的治疗后期.
益生菌是一种可行的AGP替代品,可以提高家禽的表现和肠道健康,早期管理至关重要.

关键词:

肠道炎症肠道炎症肠道健康肠道健康我们的微生物群.禽类禽类禽类禽类益生菌是一种益生菌.

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