The resistome of the bovine gastrointestinal tract

  13 September 2021

The gastrointestinal tracts of beef and dairy cattle are reservoirs of antimicrobial-resistant bacteria, and our knowledge of the ecology of resistance in these animals has changed with the advent of novel molecular technologies. Application of metagenomics and qPCR to the study of bovine gut ecology has demonstrated that there is overlap, with some differences, between beef and dairy cattle fecal resistomes, that treatment with antimicrobials often transiently influences the resistome, and young calves carry a high abundance of ARGs. Future work should harness emerging metagenome sequencing technologies to better describe the taxa harboring ARGs and collocated non-resistance genes and use these data along with identifying the multiplicity of factors driving resistance to develop strategies to reduce AMR carriage in cattle.

Author(s): Bradd J Haley, Jo Ann S Van Kessel
Healthy Animals  


Unrestricted financial support by:


Antimicrobial Resistance Fighter Coalition

Bangalore Bioinnovation Centre


Ambassador Network

Join the AMR Insights Ambassador Network today!

Connect to over 650 AMR professionals and students in 65 countries!

More information

What is going on with AMR?
Stay tuned with remarkable global AMR news and developments!

Keep me informed