菌微生物群衍生的因素减轻了奶牛的代谢障碍,并补充了葡萄种子提取物
Qi Shao1, Xinwei Li1, Guojin Li1
1State Key Laboratory for Diagnosis and Treatment of Severe Zoonotic Infectious Diseases, Key Laboratory for Zoonosis Research of the Ministry of Education, Institute of Zoonosis, and College of Veterinary Medicine, Jilin University, Changchun 130062, China.
葡萄种子提取物 (GSE) 补充剂通过增强食者微生物群衍生的素改善了奶牛的健康和牛奶产量. 这一策略支持新陈代谢平衡,并在关键的过渡期缓解负能量平衡.
科学领域:
- 动物科学动物科学
- 类动物营养 类动物营养
- 代谢健康 代谢健康
背景情况:
- 类微生物群显著影响宿主的新陈代谢.
- 葡萄种子提取物 (GSE) 显示出调节反动物微生物和代谢物的潜力.
- 了解GSE对奶牛能量代谢的影响对于优化生产率至关重要.
研究的目的:
- 调查饮食中GSE补充剂对过渡期中中国霍尔斯坦牛的能量代谢和炎症状况的影响.
- 探索食动物微生物群衍生的因诺辛在调解这些效应中的作用.
主要方法:
- 随机对照试验对20只中国荷尔斯坦牛进行,分为用GSE补充和对照组.
- 从分娩前3周到分娩后3周的GSE (15g/d) 的食补充.
- 分析牛奶产量,料效率,牛奶体细胞数量,血清代谢物,肝酶活性,动物微生物群组成和代谢物.
主要成果:
- GSE补充剂增加了牛奶产量,料效率,并减少了体细胞数量.
- GSE改善了血清葡萄糖,降低了非化脂肪酸,β-氧黄油酸,哈普托格洛宾和血清粉样蛋白A.
- GSE改变了反动物微生物群,在血清和反体液中增加了因诺辛水平,与牛奶产量和能量平衡有积极的相关性.
结论:
- 饮食中使用GSE补充剂对乳牛产后的能量代谢和炎症产生有益影响.
- 增强的转动物微生物群衍生的氨酸生产是GSE发挥其作用的关键机制.
- 在过渡期内,GSE和伊诺辛是改善奶牛健康和生产力的有希望的策略.
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