[Management of the mastitis by coliforms in the dairy cattle]

antibiotici antibiotics antibiotique biological contamination bovine mastitis chemioprofilassi chemoprophylaxis contamination biologique contaminazione biologica dairy cows diagnosi diagnosis diagnostic ghiandole mammarie glande mammaire higiene veterinaria igiene veterinaria mammary glands mammite bovine mastite bovina vacas lecheras veterinary hygiene