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Ages of weaning influence the gut microbiota diversity and function in Chongming white goats

文献类型： 外文期刊

作者： Liao, Rongrong 1 ; Xie, Xinhua 2 ; LV, Yuhua 1 ; Dai, Jianjun 1 ; Lin, Yuexia 1 ; Zhu, Lihui 1 ;

作者机构： 1.Shanghai Acad Agr Sci, Inst Anim Husb & Vet Sci, Shanghai 201106, Peoples R China

2.Gannan Med Univ, Minist Educ, Key Lab Prevent & Treatment Cardiovasc & Cerebrov, Ganzhou 341000, Peoples R China

关键词： Weaning stress; 16S rRNA; Gut; Microbiota; Goat

期刊名称：APPLIED MICROBIOLOGY AND BIOTECHNOLOGY （ 影响因子：3.53； 五年影响因子：3.913 ）

ISSN： 0175-7598

年卷期： 2021 年 105 卷 9 期

页码：

收录情况： SCI

摘要： To study the effect of weaning age on the gut microbiota diversity in the lambs of Chongming white goats, fresh feces from the lambs weaned at 30, 45, and 60 days of age were collected 3 days after weaning at 33, 48, and 63 days of age, for microbial composition analysis by 16S rRNA sequencing. The serum concentrations of lipid metabolites were also investigated at the fecal collection dates. Serum and feces from the ewe-reared groups at 33, 48, and 63 days of age were used as controls. The alpha diversity increased significantly after weaning and with the aging of the lambs. Levels of Ruminococcaceae, Lachnospiraceae, and Ruminococcus varied significantly according to the weaning treatment in lambs (P < 0.05). Butyrate-producing gut bacteria such as Ruminococcaceae_UCG-010, Ruminococcaceae_UCG-013, Ruminococcaceae_UCG-014, Ruminococcaceae_UCG-005, Ruminococcaceae_UCG-002, Lachnospiraceae_AC2044_group, and Lachnospiraceae_NK4B4 were identified as significantly increased genera (P < 0.05) in the feces of weaned Chongming white lambs. Additionally, the abundance of fiber degradation-associated bacteria including Ruminococcaceae_UCG-005, Ruminococcus_1, and Ruminococcus_2 significantly increased with lamb weaning age (P < 0.05). Correlation analysis showed that Lachnospiraceae_AC2044_group, norank_f__Bacteroidales_S24-7_group, and Ruminococcaceae_UCG_005 were negatively correlated, and Lachnoclostridium was positively correlated with levels of cholesterol, while Blautia showed positive correlation with low-density lipoprotein cholesterol in serum samples from weaned lambs. This study helped to understand the maturing development of gut microbiota in Chongming white goats under weaning stress.

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