Factor | Jacob2010 (10005)

10.1089/fpd.2009.0401

Antimicrobial Use

Cattle | Heifers

1

Description

The four treatments of the study were combintions of 1X NRC recommended copper (10mg/kg diet) and 1X zinc (30 mg/kg diet) and 10X these doses.

Resistance Outcomes

Resistance Microbe Outcome
Copper Sulfate
/
Escherichia coli
See: Figure AMR+ (n) AMR- (n) Total (n)
Elevated Cu and Zn in feed 13 60
No elevated Cu and Zn in feed 12 60