07/23/2009 - The Union of Concerned Scientists estimates that 70 percent of the antibiotics used in this country are fed to farm animals. These animals do not receive these drugs the way humans do — as discrete short-term doses. Agricultural antibiotics are a regular feed supplement intended to increase growth and lessen the chance of infection in crowded, industrial farms.
These practices are putting both humans and animals increasingly at risk. In an environment where antibiotics are omnipresent, as they are in industrial agriculture, antibiotic-resistant strains of diseases quickly develop, reducing the effectiveness of common drugs like penicillin and tetracycline.
Read the full editorial Farms and Antibiotics on the New York Times' Web site.