Mastitis and abnormal milk.

1. Any hoofed mammal affected with either acute or chronic mastitis must be immediately removed from the milking string and treated. The hoofed mammal must not be returned to the milking string until its milk is normal and all residues from antibiotics have been eliminated from its body. 2. A hoofed mammal which shows a complete induration of one quarter or extensive induration of one or more quarters of the udder upon physical examination, whether secreting abnormal milk or not, must be permanently excluded from the milking herd.