Factor | Berge_2006_AppandEnvMic (10249)

10.1128/AEM.02239-05

Antimicrobial Use

Cattle | Pre-weaned Calves

6

Description

Group 2 vs Group 4 (see Table 1 for therapeutic indications, milk replacer contains tetracycline hydrochloride (22 mg/kg body weight/day) and neomycin sulfate (22 mg/kg/day)). Both groups were housed on a calf ranch. Data is from Day 14.

Resistance Outcomes

Resistance Microbe Outcome
Amoxicillin And Beta-Lactamase Inhibitor
/
Escherichia coli
See: Table 3 (and Table 2) AMR+ (n) AMR- (n) Total (n)
Group 4 (antimicrobial therapy available and medicated milk replacer) 83 90
Group 2 (no antimicrobial therapy available, non-medicated milk replacer) 15 72
Ampicillin
/
Escherichia coli
See: Table 3 (and Table 2) AMR+ (n) AMR- (n) Total (n)
Group 4 (antimicrobial therapy available and medicated milk replacer) 90 90
Group 2 (no antimicrobial therapy available, non-medicated milk replacer) 44 72
Sulfamethoxazole And Trimethoprim
/
Escherichia coli
See: Table 3 (and Table 2) AMR+ (n) AMR- (n) Total (n)
Group 4 (antimicrobial therapy available and medicated milk replacer) 85 90
Group 2 (no antimicrobial therapy available, non-medicated milk replacer) 27 72
Tetracycline
/
Escherichia coli
See: Table 3 (and Table 2) AMR+ (n) AMR- (n) Total (n)
Group 4 (antimicrobial therapy available and medicated milk replacer) 90 90
Group 2 (no antimicrobial therapy available, non-medicated milk replacer) 53 72
Chloramphenicol
/
Escherichia coli
See: Table 3 (and Table 2) AMR+ (n) AMR- (n) Total (n)
Group 4 (antimicrobial therapy available and medicated milk replacer) 85 90
Group 2 (no antimicrobial therapy available, non-medicated milk replacer) 10 72
Nalidixic Acid
/
Escherichia coli
See: Table 3 (and Table 2) AMR+ (n) AMR- (n) Total (n)
Group 4 (antimicrobial therapy available and medicated milk replacer) 0 90
Group 2 (no antimicrobial therapy available, non-medicated milk replacer) 0 72