Hygiene in the prevention of udder infections. I. Comparative efficacy of four teat dips.

Three trials of teat dips were conducted with experimental exposure to mastitis pathogens. A control group of animals and a group treated with a hypochlorite preparation were included in all trials while a third group was dipped with a different iodophor preparation in each trial. Four teat dips were highly effective in reducing the incidence of udder infection. Some teat irritation was transitory during each trial; most occurred in the hypochlorite group.