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Dietary β-hydroxybutyric acid improves the growth performance of young ruminants based on rumen microbiota and volatile fatty acid biosynthesis

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机构： [1]Guangdong Provincial Key Laboratory of Animal Molecular Design and Precise Breeding, College of Life Science and Engineering, Foshan University, Foshan, China. [2]Key Laboratory of Feed Biotechnology of the Ministry of Agriculture and Rural Affairs, Institute of Feed Research of Chinese Academy of Agricultural Sciences, Beijing, China. [3]Division of Agriculture, Department of Animal Science, University of Arkansas, Fayetteville, NC, United States. [4]Foshan Hospital of Traditional Chinese Medicine, Foshan, China. [5]Department of Animal and Poultry Production, Faculty of Agriculture, South Valley University, Qena, Egypt. [6]Anhui Province Key Laboratory of Animal Nutritional Regulation and Health, College of Animal Science, Anhui Science and Technology University, Chuzhou, China. [7]State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing, China.

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关键词： b-hydroxybutyric acid rumen microbiota goats growth volatile fatty acids

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The ketone body β-hydroxybutyric acid (BHB) plays critical roles in cellular proliferation and metabolic fuel utilization; however, its effects on the rumen microbiota remain unknown.Here, three doses of BHB (low, medium, and high) were supplemented to early-weaned goat kids.Compared with controls, the beneficial effects of BHB on growth and rumen development were observed in goats at 90 days of age (d). The low dose of dietary BHB increased the concentration of rumen acetate, propionate, and butyrate on d90. The sequencing results of the rumen microbiota revealed marked shifts in rumen microbial community structure after early-weaned goat kids consumed BHB for 2 months. The signature bacterial ASVs for each treatment were identified and were the main drivers contributing to microbial interactions in the rumen. The bacteria associated with rumen weight were also correlated with body weight. Some classified bacterial signatures, including Prevotella, Olsenella umbonate, and Roseburia faecis, were related to rumen volatile fatty acids and host development.Overall, dietary BHB altered rumen microbiota and environments in young goats, which contributed to rumen development and growth.Copyright © 2024 Chai, Liu, Wu, Kang, Abdelsattar, Zhao, Wang, Yang, Deng, Li, Zhuang and Zhang.

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出版当年[2022]版：

大类 | 2 区

生物学

小类 | 2 区微生物学

最新[2025]版：

大类 | 2 区生物学

小类 | 3 区微生物学

第一作者：

第一作者机构： [1]Guangdong Provincial Key Laboratory of Animal Molecular Design and Precise Breeding, College of Life Science and Engineering, Foshan University, Foshan, China. [2]Key Laboratory of Feed Biotechnology of the Ministry of Agriculture and Rural Affairs, Institute of Feed Research of Chinese Academy of Agricultural Sciences, Beijing, China. [3]Division of Agriculture, Department of Animal Science, University of Arkansas, Fayetteville, NC, United States.

通讯作者：

通讯机构： [2]Key Laboratory of Feed Biotechnology of the Ministry of Agriculture and Rural Affairs, Institute of Feed Research of Chinese Academy of Agricultural Sciences, Beijing, China. [7]State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing, China.

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Dietary β-hydroxybutyric acid improves the growth performance of young ruminants based on rumen microbiota and volatile fatty acid biosynthesis

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