Machine milking rate and susceptibility to Streptococcus agalactiae infection artificially induced by means of the swab technique.
D000818:Animals; D002417:Cattle; D002418:Cattle Diseases; D008892:Milk; D013290:Streptococcal Infections; D013292:Streptococcus agalactiae
CATTLE/diseases; STREPTOCOCCAL INFECTIONS/experimental