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 28.

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) 70 81
Group 2 (no antimicrobial therapy available, non-medicated milk replacer) 8 59
Ampicillin
/
Escherichia coli
See: Table 3 (and Table 2) AMR+ (n) AMR- (n) Total (n)
Group 4 (antimicrobial therapy available and medicated milk replacer) 78 81
Group 2 (no antimicrobial therapy available, non-medicated milk replacer) 29 59
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) 75 81
Group 2 (no antimicrobial therapy available, non-medicated milk replacer) 16 59
Tetracycline
/
Escherichia coli
See: Table 3 (and Table 2) AMR+ (n) AMR- (n) Total (n)
Group 4 (antimicrobial therapy available and medicated milk replacer) 81 81
Group 2 (no antimicrobial therapy available, non-medicated milk replacer) 34 59
Chloramphenicol
/
Escherichia coli
See: Table 3 (and Table 2) AMR+ (n) AMR- (n) Total (n)
Group 4 (antimicrobial therapy available and medicated milk replacer) 69 81
Group 2 (no antimicrobial therapy available, non-medicated milk replacer) 6 59
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) 8 81
Group 2 (no antimicrobial therapy available, non-medicated milk replacer) 0 59