Skip to main content

ORIGINAL RESEARCH article

Front. Vet. Sci.
Sec. Animal Nutrition and Metabolism
Volume 11 - 2024 | doi: 10.3389/fvets.2024.1482235

Changes in the growth performance, serum biochemistry, rumen fermentation, rumen microbiota community and intestinal development in weaned goats during rumen-protected methionine treatment

Provisionally accepted
Youli Wang Youli Wang Wei Liu Wei Liu An Li An Li Wuqie Qubi Wuqie Qubi Chengsi Gong Chengsi Gong Xuening Li Xuening Li Jiani Xing Jiani Xing Haitao Shi Haitao Shi Yanyan Li Yanyan Li Yong Wang Yong Wang Yaqiu Lin Yaqiu Lin *
  • Southwest Minzu University, Chengdu, China

The final, formatted version of the article will be published soon.

    Rumen-protected methionine (RPM) such as coated methionine (CM) and 2-hydroxy-4-(methylthio)-butanoic acid isopropyl ester (HMBi) was usually used in dairy cows, but how RPM affects meat goat remains unclear. In this study, a total of thirty weaned male Jianzhou Da'er goats wereas randomly assigned into three treatments: fed basal diet or basal diet supplemented with 0.12% CM or 0.22% HMBi, to explore their effects on growth performance, serum biochemistry, rumen fermentation, rumen positively correlated with ammonia-producing bacteria, but negatively correlated with ammonia-oxidating bacteria. Furthermore, both CM and HMBi supplementation improve the development of small intestine, with HMBi had the better effect. In summary, this study indicates that both CM and HMBi supplementation improve lipid metabolism, nitrogen utilization and intestinal development. The growth promotion effect of HMBi supplementation may be attributed to the more abundant of volatile fatty acid-producing and nitrogen-utilizing bacteria and better intestinal development.

    Keywords: Goat, Rumen-protected methionine, growth performance, rumen microbiota, Serum biochemistry, small intestine

    Received: 20 Aug 2024; Accepted: 16 Oct 2024.

    Copyright: © 2024 Wang, Liu, Li, Qubi, Gong, Li, Xing, Shi, Li, Wang and Lin. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

    * Correspondence: Yaqiu Lin, Southwest Minzu University, Chengdu, China

    Disclaimer: All claims expressed in this article are solely those of the authors and do not necessarily represent those of their affiliated organizations, or those of the publisher, the editors and the reviewers. Any product that may be evaluated in this article or claim that may be made by its manufacturer is not guaranteed or endorsed by the publisher.