Assessment of decisions pertaining to antimicrobials used in nursery pigs

Judicious use of antimicrobials is a public health and civic responsibility and one of the most controversial of all therapeutics currently in use. Surveys of United States and Canadian pig producers indicate that the greatest proportions of antimicrobials are administered to nursery pigs1,2. Guidance on antimicrobial use has been developed but no single treatment standard established. Thus, we conducted the first of a series of studies to determine patterns in antimicrobial treatment based on