Reference | Farzan2010 (10178)

Eighty commercial swine farms representative of theOntario swine industry were visited between Januaryand July 2004. The farms had originally been chosenfrom 5000 Ontario pig producers as a stratified randomsample based on herd size. To have balanced geographicrepresentation, the sampling strategy included farms ineastern Ontario and the Niagara region where there arerelatively few pig farms. On each farm, one grower-fin-isher barn was chosen and within the barn five penswith the pigs closest to market weight were selected forsampling. Data regarding risk factors at farm-level were extractedfrom two questionnaires. A questionnaire was completedat the time of the farm visit. The data on in-feed andwater antimicrobial usage was extracted from anotherquestionnaire which had been administered 1 year priorto the study.

Faecal samples were obtained from two pigsper pen (800 samples) and an additional pooled samplewas collected from the fresh manure from five spots onthe pen floor (397 samples). A questionnaire was completedat the time of the farm visit. The data on in-feed andwater antimicrobial usage was extracted from anotherquestionnaire which had been administered 1 year priorto the study.

AST Method: None

Reference explicitly reports AST breakpoints: None

Reference reports using a MIC table: None