[Determination of the effective concentration of Jodonal a for the disinfection of the skin and teats after milking].

The bactericidal effectivity of Jodonal A in 1:10, 1:5, and 1:3 solutions was tested on human skin and on the teats of cow mammary glands. The 1:3 dilution ratio proved best for three-minute exposure. Jodonal A used in this concentration in 522 cows for the post-milking disinfection of teats for 10 months exerted no harmful effect on the skin of the mammary glands.