数字农科院2.0

Comparison of three feeding regimens on blood fatty acids metabolites of Wujumqin sheep in inner mongolia

文献类型： 外文期刊

作者： Jin Yanmei;Zhang Xiaoqing;Zhang Jize;Zhang Qian;Tana

作者机构：

关键词： Blood metabolite; Fatty acids; Feeding regimen; Sheep

期刊名称： Animals

ISSN： 2076-2615

年卷期： 2021 年 11 卷 4 期

页码：

收录情况： JCR（2021版）

摘要： Feeding regimens influence the fatty acid composition of animal-derived products. How-ever, there is limited information on the effect of feeding regimens on the blood fatty acid composition and metabolic pathways of ruminant animals. In this study, 30 Wujumqin sheep were randomly assigned to three groups, PF (pasture feeding), PSF (pasture feeding plus corn supplementation) and BF (barn feeding), to examine the effects of feeding regimens on blood fatty acid composition and metabolic pathways through a metabolomic approach. The results showed that the BF sheep had increased serum n-6 polyunsaturated fatty acids levels, while the PF and PSF sheep had increased serum n-3 PUFA levels. Compared to the BF and PSF sheep that were fed ground corn, the PF sheep that only ate natural grass had up-regulated serum DHA levels. Meanwhile, blood metabolites from linoleic acid and arachidonic acid, including pro-inflammatory products (20-HETE, LTs, TX etc.) and anti-inflammatory products (LXB4, DHETs, HPETEs etc.) were elevated in the BF group. It was found that, compared to grazing, concentrate supplement feeding regimens, including either grazing plus supplements or feeding indoors, down-regulated blood n-3 PUFA biosynthesis and up-regulated the blood inflammatory compound metabolism by n-6 PUFA. © 2021 by the authors. Licensee MDPI, Basel, Switzerland.

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