1. Microbiota members from body sites of dairy cows are largely shared within individual hosts throughout lactation but sharing is limited in the herd
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Mahendra Mariadassou, Laurent X. Nouvel, Fabienne Constant, Diego P. Morgavi, Lucie Rault, Sarah Barbey, Emmanuelle Helloin, Olivier Rué, Sophie Schbath, Frederic Launay, Olivier Sandra, Rachel Lefebvre, Yves Le Loir, Pierre Germon, Christine Citti, and Sergine Even
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Bovine holobiont ,Dairy cow microbiota ,Vaginal microbiota ,Milk microbiota ,Nasal microbiota ,Oral microbiota ,Veterinary medicine ,SF600-1100 ,Microbiology ,QR1-502 - Abstract
Abstract Background Host-associated microbes are major determinants of the host phenotypes. In the present study, we used dairy cows with different scores of susceptibility to mastitis with the aim to explore the relationships between microbiota composition and different factors in various body sites throughout lactation as well as the intra- and inter-animal microbial sharing. Results Microbiotas from the mouth, nose, vagina and milk of 45 lactating dairy cows were characterized by metataxonomics at four time points during the first lactation, from 1-week pre-partum to 7 months post-partum. Each site harbored a specific community that changed with time, likely reflecting physiological changes in the transition period and changes in diet and housing. Importantly, we found a significant number of microbes shared among different anatomical sites within each animal. This was between nearby anatomic sites, with up to 32% of the total number of Amplicon Sequence Variants (ASVs) of the oral microbiota shared with the nasal microbiota but also between distant ones (e.g. milk with nasal and vaginal microbiotas). In contrast, the share of microbes between animals was limited (
- Published
- 2023
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