饮食补充Bacillus velezensis KNF-209可以改善生长性能,增强免疫力,促进肉肠道健康
Ying Liu1, Mengqin Xiong1, Xiao Hu2
1State Key Laboratory of Animal Nutrition and Feeding, College of Animal Science and Technology, China Agricultural University, Beijing 100193, China.
Poultry science
|July 2, 2024
概括
摄入Bacillus velezensis KNF-209 (BV-KNF-209) 的食补充剂显著提高了 brojler 的生长性能. 这种改善与增强的免疫力,增加的消化酶活性以及肠道短链脂肪酸和乳酸水平的升高有关.
科学领域:
- 动物科学动物科学
- 微生物学 微生物学
- 免疫学 免疫学 免疫学
背景情况:
- 百菌 velezensis是一种益生菌细菌,对动物健康有潜在的益处.
- 优化肉生长性能,免疫力和肠道健康对于可持续的家禽生产至关重要.
研究的目的:
- 为了评估食补充Bacillus velezensis KNF-209 (BV-KNF-209) 对肉生长,免疫力和肠道健康的影响.
- 为了确定BV-KNF-209在肉生产中的最佳含量水平.
主要方法:
- 进行了一项42天的养试验,涉及540只Cobb-500肉.
- 养鸟类的饮食补充了不同水平的BV-KNF-209 (0, 50, 100, 200, 400毫克/公斤).
- 分析了生长性能,血清免疫参数,肠道酶活动和肠道微生物群代谢物.
主要成果:
- 饮食BV-KNF-209显著增加了平均每日增益,并在特定剂量下改善了料与增益的比率.
- 补充剂增强了血清免疫球蛋白M (IgM) 和调节的炎症细胞因子水平 (TNF-α,IL-1β,IL-6,IL-10).
- 观察到消化酶活动增加 (脂酶,素,氨酶) 和短链脂肪酸 (,) 和乳酸水平升高.
结论:
- 饮食BV-KNF-209补充剂有效地提高了 brojler 的生长性能.
- 这些积极影响与增强的免疫反应,改善的消化能力和更健康的肠道环境有关.
- BV-KNF-209作为家禽行业的料添加剂显示出前景.
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