Explanation:

Mastitis is an inflammation of one or more quarters of the udder usually caused by bacterial infection.
Several types of bacteria cause distinctly different mastitis infections.
Most mastitis persists as subclinical infections and is not detected by the milker, only occasionally are there clinical signs with clots in the milk and inflamed quarters.
Antibiotic infusions into the udder nearly always cure the clinical disease but may not eliminate the bacterial infection.
Mastitis reduces milk yields, increases the cost of production and makes milk less valuable for liquid consumption and manufacture.
A total of 65 quarter samples from 37 clinical mastitis cases of goats from all over the Punjab state were cultured on blood agar for bacterial isolation during the period from January, 2006 to December, 2011.