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ORIGINAL RESEARCH article
Front. Vet. Sci.
Sec. Animal Nutrition and Metabolism
Volume 11 - 2024 |
doi: 10.3389/fvets.2024.1492747
This article is part of the Research Topic Natural Compounds/Products and Livestock Productivity: Enhancing Antioxidant Levels, Gut Health, Mitigating Greenhouse Gas Emissions, and Disease Control View all 12 articles
Effects of dietary rumen-protected glucose level and taurine supplementation on weight change and oxidative stress state of yaks after transport
Provisionally accepted- 1 Sichuan Agricultural University, Ya'an, China
- 2 Chongqing Academy of Animal Science, Chongqing, Chongqing, China
Rumen-protected glucose (RPG) and taurine (TAU) are crucial for the nutrition and physiology of ruminants, enhancing production performance and mitigating negative energy balance. This study aimed to assess the impact of RPG levels and TAU supplementation on the body weight, antioxidant capacity, immune function and stress responses in yaks before and after transport. Thirty-two healthy male yaks, aged 3 years and weighing 172.5±10.2 kg, were randomly assigned to one of four dietary treatments: (1) low RPG and low TAU (LRLT), with 1% RPG and 5 g/d TAU; (2) low RPG and high TAU (LRHT), with 1% RPG and 15 g/d TAU; (3) high RPG and low TAU (HRLT), with 3% RPG and 5 g/d TAU; and (4) high RPG and high TAU (HRHT), with 3% RPG and 15 g/d TAU. The weight was measured before and on days 0 and 30 after transport, and the plasma was collected before and on day 0,10 and 30 after transport for analysis of biochemical, antioxidant, immune, and stress response indicators. We observed that transport increased plasma concentrations of total cholesterol, total protein, lactate dehydrogenase, creatine kinase, malondialdehyde, cortisol and lipopolysaccharides of yaks among treatments, while decreased their BW and plasma IL-10 concentration. Increasing TAU supplementation reduced weight loss (8.42 VS 11.9 kg) and weight loss percent (4.83% VS 6.87%) in yaks after transport. The concentration of MDA in plasma was lower in HRHT than in LRLT at day 0 after transport (P = 0.03). TNF-α at day 0 after transport (P = 0.02), COR at day 10 (P = 0.03) and 30 (P = 0.05) after transport as well as LPS at day 0 after transport (P = 0.04) decreased. In addition, concentrations of COR at day 0 after transport was lower in LRHT and HRHT than in LRLT (P = 0.03). Based on all the results, we demonstrated that increasing TAU supplementation levels reduced post-transport weight loss in yaks, improved their antioxidant capacity and immune function, and alleviated stress responses.
Keywords: Rumen-protected glucose, Taurine, Yak, transport, stress response
Received: 07 Sep 2024; Accepted: 08 Nov 2024.
Copyright: © 2024 Wang, Zhao, Zhao, Zhou, Cao, Lu, Chen, Yang, Zhang, Shao, Zhao, Tang and Xue. 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:
Xiaolin Wang, Sichuan Agricultural University, Ya'an, China
Kaiqiang Zhao, Sichuan Agricultural University, Ya'an, China
Mingyu Cao, Sichuan Agricultural University, Ya'an, China
Lianghao Lu, Sichuan Agricultural University, Ya'an, China
Yuanyuan Chen, Sichuan Agricultural University, Ya'an, China
Huaming Yang, Sichuan Agricultural University, Ya'an, China
Bao Zhang, Sichuan Agricultural University, Ya'an, China
Chong Shao, Sichuan Agricultural University, Ya'an, China
Yanfei Zhao, Sichuan Agricultural University, Ya'an, China
Rui Tang, Sichuan Agricultural University, Ya'an, China
Bai Xue, Sichuan Agricultural University, Ya'an, China
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