October 20, 2004
In the presence of antibiotics in the feed, pigs became readily colonized with E. coli resistant to the antibiotic ceftiofur. Some E. coli harboured the specific gene blaCMY-2, known to confer...February 28, 2004
There are many products on the market sold as probiotics with label claims to enhance growth and production. Regulations governing the licensure, sale, and addition of these products to animal feeds...
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