Mastitis prevention by selection of sires.
D000818:Animals; D002417:Cattle / Q000235:genetics* / Q000502:physiology; D005260:Female; D007774:Lactation; D008297:Male; D008414:Mastitis, Bovine / Q000235:genetics*; D008892:Milk / Q000166:cytology; D011247:Pregnancy; D012641:Selection, Genetic