Reference | Diarra2007 (10157)

Impact of feed supplementation with antimicrobial agents on growth performance of broiler chickens, Clostridium perfringens and Enterococcus counts, and antibiotic resistance phenotypes and distribution of antimicrobial resistance determinants in Escheric.


Diarra, Moussa S.; Silversides, Fred G.; Diarrassouba, Fatoumata; Pritchard, Jane; Masson, Luke; Brousseau, Roland; Bonnet, Claudie; Delaquis, Pascal; Bach, Susan; Skura, Brent J.; Topp, Edward (Canada)

Applied and Environmental Microbiology (2007)

Reference


Studies were performed with 900 1-day-oldmale broiler chickens. The birds were placed in 18 pens (50 birds per pen) thatwere assigned at random to six treatments: a control group fed without antibi-otics and five groups fed rations containing (per kg of feed) 2 mg bambermycin,2.2 mg procaine penicillin, 60 mg salinomycin, 4.4 mg bacitracin, and a combi-nation of 3.3 mg bacitracin plus 1.1 mg salinomycin

Ten chicks (day 0) and twobirds per pen were killed by cervical dislocation at each sampling time (7, 14, 21,28, and 35 days of age). Cecal contents and cloacal samples from the twosacrificed birds were aseptically collected

AST Method: None

Reference explicitly reports AST breakpoints: False

Reference reports using a MIC table: False

Is Excluded: False

Country Sub-Region Sub-Region Detail
Canada None British Columbia
Canada None None
ID Note Resolution

Factors


Title Host Host Production Stage Description ROs
Penicillin Use Chicken Broilers Farm Penicillin used as a growth promotor, at 2.2 mg/kg in feed. 12
Bambermycin use Chicken Broilers Farm 2 mg bambermycin per kg of feed vs no antibiotics. Selected for tetracycline-resistant E. coli isolates. 17
Salinomycin Use Chicken Broilers Farm Salinomycin used as a growth promotor, at 60 mg/kg in feed. 12
Penicillin use Chicken Broilers Farm 2.2 mg procaine penicillin per kg of feed vs no antibiotics. 12
Bacitracin use Chicken Broilers Farm 4.4 mg bacitracin per kg of feed vs no antibiotics. 12
Salinomycin and Bacitracin Use Chicken Broilers Farm Salinomycin and bacitracin used as growth promotors, at 1.1 mg/kg and 3.3 mg/kg respectively. 12
Bacitracin and Salinomycin use Chicken Broilers Farm 3.3 mg bacitracin + 1.1 mg salinomycin per kg of feed vs no antibiotics. Selected for tetracycline-resistant E. coli isolates. 17
Bacitracin and Salinomycin use Chicken Broilers Farm 3.3 mg bacitracin + 1.1 mg salinomycin per kg of feed vs no antibiotics. 12
Salinomycin use Chicken Broilers Farm 60 mg salinomycin per kg of feed vs no antibiotics. Selected for tetracycline-resistant E. coli isolates. 17
Bacitracin Use Chicken Broilers Farm Bacitracin used as a growth promotor, at 4.4 mg/kg in feed. 12
Bacitracin use Chicken Broilers Farm 4.4 mg bacitracin per kg of feed vs no antibiotics. Selected for tetracycline-resistant E. coli isolates. 17
Bambermycin use Chicken Broilers Farm 2 mg bambermycin per kg of feed vs no antibiotics. 12
Salinomycin use Chicken Broilers Farm 60 mg salinomycin per kg of feed vs no antibiotics. 12
Bambermycin Use Chicken Broilers Farm Bambermycin used as a growth promotor, at 2 mg/kg in feed. 12
Penicillin use Chicken Broilers Farm 2.2 mg procaine penicillin per kg of feed vs no antibiotics. Selected for tetracycline-resistant E. coli isolates. 17