Using Fecal DNA Metabarcoding to Investigate Foraging Reveals the Effects of Specific Herbage on the Improved n-3 Fatty Acid (PUFA) Composition in the Longissimus Dorsi Muscle of Grazing Tan Sheep
文献类型： 外文期刊
作者： Guo, Yanping 1 ; Zhao, Xingang 1 ; Liu, Ming 1 ; Zhang, Can 1 ; Zhang, Yingjun 2 ; Ma, Qing 3 ; Wang, Bing 1 ; Luo, Haili 1 ;
作者机构： 1.China Agr Univ, Coll Anim Sci & Technol, State Key Lab Anim Nutr, Beijing 100193, Peoples R China
2.China Agr Univ, Coll Grassland Sci & Technol, Key Lab Grasslands Management & Utilizat, Beijing 100193, Peoples R China
3.Ningxia Acad Agr & Forestry Sci, Res Ctr Grass & Livestock, Yinchuan 750002, Ningxia, Peoples R China
关键词： n-3 PUFAs; diet composition; fecal DNA metabarcoding; sheep; herbivore diet
期刊名称：JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY （ 影响因子：5.279； 五年影响因子：5.269 ）
ISSN： 0021-8561
年卷期： 2021 年 69 卷 33 期
页码：
收录情况： SCI
摘要： Understanding the natural diet of grazing sheep can help fulfill their nutritional requirements and positively affect the quality of their meat. Emerging fecal DNA (fDNA) metabarcoding technology can provide more accurate estimates for the dietary composition of free-ranging animals. This study has shown that pasture feeding can promote deposition of n-3 polyunsaturated fatty acids (PUFAs) in Tan lambs' muscle and decrease the ratio of n-6/n-3 fatty acids (FAs), and thus, we investigated the dietary composition of grazing lambs using fDNA metabarcoding to assess the prevalence of medicinal herbage plants in their diet. Herein, based on the full-time natural pasture grazing and 4-h natural pasture grazing with indoor feeding patterns, the herbage taxa (Bassia scoparia, Euphorbia humifusa, Arnebia euchroma, and Salsola sp.) most correlated to n-3 PUFAs were highlighted to elucidate how diversification in dietary components was associated with the muscle FA profile of lambs. Our findings provide experimental evidence for future feeding research.
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