Differences in the fecal microbiota of dairy calves reared with differing sources of milk and levels of maternal contact

The practice of rearing cows and calves together is gaining popularity on dairy farms, with different systems currently under assessment in mainland Europe, the United Kingdom, and Oceania. Research into the effects of cow–calf rearing has primarily focused on direct health and welfare implications,...

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Main Authors: Annabelle Beaver, Charisse Petersen, Daniel M. Weary, B. Brett Finlay, Marina A.G. von Keyserlingk
Format: Article
Language:English
Published: Elsevier 2021-07-01
Series:JDS Communications
Online Access:http://www.sciencedirect.com/science/article/pii/S2666910221000612
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author Annabelle Beaver
Charisse Petersen
Daniel M. Weary
B. Brett Finlay
Marina A.G. von Keyserlingk
author_facet Annabelle Beaver
Charisse Petersen
Daniel M. Weary
B. Brett Finlay
Marina A.G. von Keyserlingk
author_sort Annabelle Beaver
collection DOAJ
description The practice of rearing cows and calves together is gaining popularity on dairy farms, with different systems currently under assessment in mainland Europe, the United Kingdom, and Oceania. Research into the effects of cow–calf rearing has primarily focused on direct health and welfare implications, and little work has examined the role of different rearing paradigms on calf microbiota. We trialed a cow–calf rearing system on a Canadian dairy farm and compared fecal microbiota of these calves with the microbiota of calves reared according to the conventional practice of the same farm (separated from the dam and fed waste milk). At 4 wk, the conventionally reared calves had reduced relative abundance of Lactobacillus and higher relative abundance of other taxa, including Sutterella, Prevotella, and Bacteroides. We also detected predicted functional differences, such as reduced l-tryptophan biosynthesis in conventionally reared calves. These results suggest that maternal contact may influence the calf microbiota, but the observed differences are also likely related to other aspects of the rearing environment independent of maternal contact (e.g., potential exposure to antibiotic residues in waste milk). These findings provide preliminary evidence of the effects of early rearing environments on the establishment of the dairy calf fecal microbiota. This research is needed, given the critical role of the bovine gut microbiome in behavioral, metabolic, and immune development.
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spelling doaj.art-0243e7b4e05d4a4399f55659a8f6dc1c2023-07-04T05:10:36ZengElsevierJDS Communications2666-91022021-07-0124200206Differences in the fecal microbiota of dairy calves reared with differing sources of milk and levels of maternal contactAnnabelle Beaver0Charisse Petersen1Daniel M. Weary2B. Brett Finlay3Marina A.G. von Keyserlingk4Animal Welfare Program, Faculty of Land and Food Systems, University of British Columbia, Vancouver, BC, Canada, V6T 1Z4; Department of Veterinary Health and Animal Sciences, Harper Adams University, Shropshire, United Kingdom, TF10 8NBMichael Smith Laboratories, University of British Columbia, Vancouver, BC, Canada, V6T 1Z4Animal Welfare Program, Faculty of Land and Food Systems, University of British Columbia, Vancouver, BC, Canada, V6T 1Z4Michael Smith Laboratories, University of British Columbia, Vancouver, BC, Canada, V6T 1Z4; Department of Microbiology and Immunology, University of British Columbia, Vancouver, BC, Canada, V6T 1Z4; Department of Biochemistry and Molecular Biology, University of British Columbia, Vancouver, BC, Canada, V6T 1Z4Animal Welfare Program, Faculty of Land and Food Systems, University of British Columbia, Vancouver, BC, Canada, V6T 1Z4; Corresponding authorThe practice of rearing cows and calves together is gaining popularity on dairy farms, with different systems currently under assessment in mainland Europe, the United Kingdom, and Oceania. Research into the effects of cow–calf rearing has primarily focused on direct health and welfare implications, and little work has examined the role of different rearing paradigms on calf microbiota. We trialed a cow–calf rearing system on a Canadian dairy farm and compared fecal microbiota of these calves with the microbiota of calves reared according to the conventional practice of the same farm (separated from the dam and fed waste milk). At 4 wk, the conventionally reared calves had reduced relative abundance of Lactobacillus and higher relative abundance of other taxa, including Sutterella, Prevotella, and Bacteroides. We also detected predicted functional differences, such as reduced l-tryptophan biosynthesis in conventionally reared calves. These results suggest that maternal contact may influence the calf microbiota, but the observed differences are also likely related to other aspects of the rearing environment independent of maternal contact (e.g., potential exposure to antibiotic residues in waste milk). These findings provide preliminary evidence of the effects of early rearing environments on the establishment of the dairy calf fecal microbiota. This research is needed, given the critical role of the bovine gut microbiome in behavioral, metabolic, and immune development.http://www.sciencedirect.com/science/article/pii/S2666910221000612
spellingShingle Annabelle Beaver
Charisse Petersen
Daniel M. Weary
B. Brett Finlay
Marina A.G. von Keyserlingk
Differences in the fecal microbiota of dairy calves reared with differing sources of milk and levels of maternal contact
JDS Communications
title Differences in the fecal microbiota of dairy calves reared with differing sources of milk and levels of maternal contact
title_full Differences in the fecal microbiota of dairy calves reared with differing sources of milk and levels of maternal contact
title_fullStr Differences in the fecal microbiota of dairy calves reared with differing sources of milk and levels of maternal contact
title_full_unstemmed Differences in the fecal microbiota of dairy calves reared with differing sources of milk and levels of maternal contact
title_short Differences in the fecal microbiota of dairy calves reared with differing sources of milk and levels of maternal contact
title_sort differences in the fecal microbiota of dairy calves reared with differing sources of milk and levels of maternal contact
url http://www.sciencedirect.com/science/article/pii/S2666910221000612
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