A mail survey of the efficacy of prophylactic medication in feed and/or water of feedlot calves.

  • S. W. Martin
  • Published 1985 in
    Canadian journal of comparative medicine : Revue…


A mail survey of feedlot owners was conducted to evaluate the efficacy of prophylactic antimicrobials, given in the water, or in the ration at preventing illness and/or death. One hundred and twenty-seven farmers from southwestern Ontario collaborated in the study. The percentage of calves requiring individual antimicrobial treatment, for any reason within… (More)


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