Which of the following disease would directly affect milk production in cows?

A.

Mastitis

B.

Rinderpest

C.

Trypanosomiasis

D.

Tuberculosis

Correct answer is A

Mastitis in dairy cows is caused by udder infections, usually resulting from bacteria introduced either during the milking process or from environmental contact. Milk-secreting tissues and various ducts throughout the udder can be damaged by bacterial toxins, and sometimes permanent damage to the udder occurs.