乳酸和谷氨胺对断奶小猪的生长性能,肠道功能和微生物群有积极的协同作用
Junjie Jiang1, Daiwen Chen1, Bing Yu1
1Key Laboratory for Animal Disease-Resistance Nutrition of China Ministry of Education, Institute of Animal Nutrition, Sichuan Agricultural University, Chengdu 611130, China.
Animals : an open access journal from MDPI
|December 17, 2024
概括
饮食中的乳酸和谷氨胺补充剂通过增强肠道发育,营养消化和肠道微生物群平衡,协同改善了断奶小猪的生长. 这种组合显示出在后抗生素时代作为料添加剂的潜力.
科学领域:
- 动物科学动物科学
- 营养科学 营养科学
- 胃肠病学 胃肠病学
背景情况:
- 断奶小猪在生长和肠道健康方面面临挑战.
- 乳酸和谷氨酸是潜在的料添加剂,可以提高小猪的性能.
研究的目的:
- 评估饮食中的乳酸和谷氨胺及其相互作用对断奶小猪生长和肠道功能的影响.
- 评估对营养消化能力,酶活性,肠道屏障,微生物群和基因表达的影响.
主要方法:
- 96只断奶小猪在28天内以2x2的因数排列方式食基质,乳酸,谷氨酸或组合饮食.
- 评估了生长性能,明显的全管消化能力 (ATTD),消化酶活性,肠道形态,基因表达和肠道微生物群.
主要成果:
- 乳酸和谷氨酸改善了料摄入量,生长和营养素消化能力 (CP,灰).
- 联合补充剂增强了消化酶活性,的高度和肠道屏障基因表达 (例如,OCLN,ZO-1).
- 这两种添加剂都调节了肠道微生物群和挥发性脂肪酸的产生,观察到协同效应.
结论:
- 饮食中的乳酸和谷氨酸表现出协同作用,改善了断奶小猪的生长性能.
- 这种组合促进了小肠发育,增强了消化和屏障功能,平衡了肠道微生物群.
- 这种协同效应表明,它有可能作为料添加剂,促进小猪健康和生长,特别是在后抗生素时代.
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