Impact of weight variation on the microbiome of yak dams and calves
2024
Hongzhuang Wang | Hongzhuang Wang | Wangdui Basang | Wangdui Basang | Zhandui Pingcuo | Zhandui Pingcuo | Nan Jiang | Nan Jiang | Guangming Sun | Guangming Sun | Shah Nawaz | Yangji Cidan | Yangji Cidan | Yang Liu | Yang Liu | Yanbin Zhu | Yanbin Zhu | Dunzhu Luosang | Dunzhu Luosang
IntroductionLimited information exists regarding the microbiome composition of yak calves of varying weights. Therefore, this study aimed to investigate the microbiomes of mother-calf pairs with different weight profiles.MethodsFecal and blood samples were collected from both lower-weight (CB) and higher-weight (HB) yak calves, along with their corresponding female yaks (CA, HA).ResultsThe results revealed significantly higher levels of T-AOC (total antioxidant capacity) and GSH-Px (glutathione peroxidase) in HB animals (p < 0.001). Sequencing yielded 652,181 and 643,369 filtered reads in female and calf yaks, respectively. Alpha diversity analysis indicated that Chao1, Faith_pd, and Observed species were significantly higher in CA compared to HA (p < 0.01). Furthermore, nine genera were notably different between HA and CA yaks, including Avispirillum, Fimenecus, CAG-1031, Odoribacter 865974, and Jeotgalicoccus A 310962. Compared to CB yaks, CA animals exhibited significant differences in one phylum and six genera, including CAG-485 (p < 0.05), CAG-83 (p < 0.01), Copromorpha (p < 0.01), Phocaeicola A 858004 (p < 0.05), and UBA2253 (p < 0.05).ConclusionIn summary, higher-weight yak calves demonstrated increased oxidative resistance, and weight profiles were linked to the microbiomes of both female yaks and their calves. These findings offer valuable insights for optimizing yak breeding practices in high-altitude regions.
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