84 : Research paper
A longitudinal field trial assessing the impact of feeding waste milk containing antibiotic residues on the prevalence of ESBL-producing Escherichia coli in calves. Brunton, L.A., Reeves, H.E., Snow, L.C. and J.R. Jones. 2014. Preventive Veterinary Medicine 117: 403-412.
In Significant Impact Groups: Pathogen management \ Feed / gut health
Species targeted: Dairy;
Summary: A field trial was done on a farm known to have resistant Escherichia coli, in order to understand if feeding calves with waste milk with antibiotic residues could lead to detecting more resistant bacteria in the faeces of calves. The findings of this study indicate that feeding waste milk with antibiotic residues on this farm increased the amount of resistant bacteria shed in the faeces. Resistant E. coli persists for longer after weaning in calves fed milk with resistant bacteria. These findings are applicable to the situation observed on this farm, but may differ on other farms depending on contents of the waste milk or level of contamination on the farm. Still, the antibiotics used on this farm have been commonly used on dairy farms in in England and Wales, so results shown can give an idea of what to expect in similar contexts.
84 : Research paper – Brunton – 2014 – A longitudinal field trial assessing the impact of feeding waste milk containing antibiotic residues on the prevalence of ESBL-producing Escherichia coli in calves