Bacteriological Examination and Antibiogram of Milk Sample of Clinically Infected Dairy Cow Suffering from Mastitis

Mastitis is chronic inflammation of the mammary gland of cattle and can have infectious and non-infectious etiology. It is characterized by physical, chemical and usually bacteriological changes in the milk and pathological changes in the glandular tissue of the udder and affects quality and quantity of milk. Mastitis is usually caused by bacteria that invade the udder, multiply and produce toxins which are harmful to the mammary gland. It remains the most economically important disease of dairy industries around the world producing great economic loss to farmers. There are two forms of mastitis viz., clinical mastitis (CM) and Sub clinical mastitis (SCM).