Abstract

Antimicrobial resistance is a global public health concern, and livestock play a significant role in selecting for resistance and maintaining such reservoirs. Here we study the succession of dairy cattle resistome during early life using metagenomic sequencing, as well as the relationship between resistome, gut microbiota, and diet. In our dataset, the gut of dairy calves serves as a reservoir of 329 antimicrobial resistance genes (ARGs) presumably conferring resistance to 17 classes of antibiotics, and the abundance of ARGs declines gradually during nursing. ARGs appear to co-occur with antibacterial biocide or metal resistance genes. Colostrum is a potential source of ARGs observed in calves at day 2. The dynamic changes in the resistome are likely a result of gut microbiota assembly, which is closely associated with diet transition in dairy calves. Modifications in the resistome may be possible via early-life dietary interventions to reduce overall antimicrobial resistance.

Details

Title
The fecal resistome of dairy cattle is associated with diet during nursing
Author
Liu, Jinxin 1   VIAFID ORCID Logo  ; Taft, Diana H 1 ; Maldonado-Gomez, Maria X 1 ; Johnson, Daisy 1 ; Treiber, Michelle L 2   VIAFID ORCID Logo  ; Lemay, Danielle G 3   VIAFID ORCID Logo  ; DePeters, Edward J 4 ; Mills, David A 5 

 Department of Food Science and Technology, Robert Mondavi Institute for Wine and Food Science, University of California, Davis, Davis, CA, USA; Foods for Health Institute, University of California, Davis, California, Davis, CA, USA 
 Department of Food Science and Technology, Robert Mondavi Institute for Wine and Food Science, University of California, Davis, Davis, CA, USA; USDA ARS Western Human Nutrition Research Center, Davis, CA, USA 
 USDA ARS Western Human Nutrition Research Center, Davis, CA, USA; Genome Center, University of California, Davis, CA, USA; Department of Nutrition, University of California, Davis, California, Davis, CA, USA 
 Department of Animal Science, University of California, Davis, California, Davis, CA, USA 
 Department of Food Science and Technology, Robert Mondavi Institute for Wine and Food Science, University of California, Davis, Davis, CA, USA; Foods for Health Institute, University of California, Davis, California, Davis, CA, USA; Department of Viticulture and Enology, Robert Mondavi Institute for Wine and Food Science, University of California, Davis, California, Davis, CA, USA 
Pages
1-15
Publication year
2019
Publication date
Sep 2019
Publisher
Nature Publishing Group
e-ISSN
20411723
Source type
Scholarly Journal
Language of publication
English
ProQuest document ID
2298761812
Copyright
© 2019. This work is published under http://creativecommons.org/licenses/by/4.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.