摄入L-氨酸的食补充剂可以改善氨基酸组成和肉的性能,并调节肠道微生物群
Yan Ma1, Tingting Liu1, Shuaihu Chen1
1Laboratory of Animal Nutrition and Feed Science, College of Animal Science and Technology, Shihezi University, Shihezi, China.
Frontiers in microbiology
|February 28, 2025
概括
用L-氨酸 (L-Cit) 补充肉饮食可以提高生长性能,抗氧化能力和免疫功能. 这项研究发现最佳的L-Cit水平在1%至1.5%之间,可以改善肉的健康和肠道微生物群调节.
科学领域:
- 动物科学动物科学
- 营养生物化学 营养生物化学
- 禽畜科学 禽畜科学 禽畜科学
背景情况:
- 由于缺乏合成关键酶,家禽需要食阿尔金因.
- 氨酸 (L-Cit) 作为氨酸的前体,可能提供优越的生物效应.
- 了解L-Cit对 brojler表现和健康的影响对于料优化至关重要.
研究的目的:
- 为了评估食L-氨酸补充剂对 brojiler生产绩效的影响.
- 评估L-Cit对肉抗氧化状态,免疫反应和肠道微生物群组成的影响.
- 为了确定肉L-Cit的最佳饮食含量水平.
主要方法:
- 240只黄羽肉被食了0.0.5%,1%或1.5%L-Cit的饮食63天.
- 测量了生长性能参数,包括体重和平均每日增长.
- 分析了血代谢物度,抗氧化酶活性 (T-AOC,SOD),炎症性细胞因子 (IL-1β,IL-6,TNF-α) 和肠道微生物群.
主要成果:
- 饮食L-Cit显著增加了身体重量和平均每日增加,以线性和二次式的方式.
- 血中素,甲素和素的水平随着L-Cit剂量增加而增加.
- 补充L-Cit改善了抗氧化能力,通过减少促炎性细胞因子调节了免疫反应,并改变了肠道微生物群组成,特别是增加了Prevotellaceae_UCG-001.001.
结论:
- 补充L-氨酸可以有效地提高 brojler 生产性能.
- L-Cit改善抗氧化和免疫功能,并积极调节肉肠道微生物群.
- 在黄色羽毛肉中,L-Cit补充剂的最佳饮食水平在1%至1.5%之间.
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