colonization with corynebacterium bovis was established in 59 of 64 ( 92 % ) , 58 of 59 ( 98 % ) and 19 of 34 ( 56 % ) of uninfected bovine mammary quarters following inoculation of 83.3 x 10 ( 4 ) colony-forming units ( cfu ) of the organism into the teat cistern , 4.7 x 10 ( 3 ) cfu 5 mm into the teat duct or by exposure of the teat orifice to a milk culture containing 1.6 x 10 ( 7 ) cfu/ml respectively .
C0006141
mammary
C0026131
milk