用益生菌补充饮食的羔羊的表现,反动物和便微生物组
Marcella Oliveira Machado1, Diógenes Adriano Duarte Santana1, Matheus Borges de Carvalho1
1Graduate Program in Animal Science, School of Medicine and Life Sciences, Pontifícia Universidade Católica do Paraná (PUCPR), Rua Imaculada Conceição, 1155- Bairro Prado Velho, Curitiba, Paraná, 80215-901, Brazil.
Tropical animal health and production
|October 2, 2024
概括
这项研究发现,益生菌改善了羊羔的转表皮健康和微生物多样性,但没有影响体重增加或整体表现. 在一组中,益生菌补充剂增加了干物质摄入量.
科学领域:
- 动物科学动物科学
- 微生物学 微生物学
- 类动物营养 类动物营养
背景情况:
- 益生菌越来越多地用于动物料,以改善肠道健康和性能.
- 了解益生菌对反动物和便微生物群的影响对于优化畜牧业生产至关重要.
- 羊羔是肉类生产的关键物种,对它们的肠道健康和微生物群的研究非常重要.
研究的目的:
- 为了评估两种不同剂量的商业益生菌对成长中的羔羊的生产性能的影响.
- 分析益生菌补充剂对羊羔反动物和便微生物组合的影响.
- 为了评估经过益生菌的管理而引起的头上皮的组织学变化.
主要方法:
- 42只杂交的羊羔被分为三个组:对照组 (基础饮食),低剂量益生菌 (1克/动物/天) 和高剂量益生菌 (5克/动物/天).
- 该研究持续了84天,期间监测了体重增加,干物质摄入量 (DMI) 和料剩余物.
- 血液,便和血组织样本被采集用于微生物组分析和屠宰后组织学检查.
主要成果:
- 益生菌补充剂没有显著影响羔羊体重增加.
- 低剂量益生菌组 (GP1) 与对照组相比,表现出较高的和DMI.
- 益生菌群体表现出改善的乳头上皮结构 (减少质化上皮和角层厚度,较小的乳头宽度) 和改变的乳头/便微生物种群 (例如,增加了Azoarcus,Dialister,Treponema,Fibrobacter;减少了Anaeroplasma).
结论:
- 商业益生菌可以有益于体上皮的健康,并有助于成长中的羔羊的微生物多样性.
- 虽然益生菌没有提高整体性能参数,如体重增加,但它们对料摄入量和肠道形态有积极的影响.
- 体和便中的特定微生物种类被益生菌补充剂调节,这表明它们在肠道功能中的作用.
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