Hobart dairy farmer Ray Diederich says he and most other dairy farmers use antibiotics in their animals responsibly, and only when needed.
"For the most part, we don't use any antibiotics as preventive maintenance; we use it as treatment," he said. "We don't want the cattle to build up an immunity to antibiotics. We use these drugs sparingly so that when we do need them, we have them."
The Food and Drug Administration says overuse of drugs in livestock is increasing the prevalence of antibiotic-resistant bacteria that may affect human health.
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