Question

what disease causes the fetus to be aborted after 5 months in the pregnant heifer?
rhinotracheitis
bvd
brucellosis
ipv

Explanation:

Brucellosis in cattle can cause abortions, especially around the middle - to - late stages of pregnancy like 5 months. Rhinotracheitis mainly affects the respiratory system, BVD has other symptoms related to the digestive and respiratory systems in addition to some reproductive issues but is not as characteristic for mid - pregnancy abortion as brucellosis, and IPV is not a common cause of mid - pregnancy abortion in heifers.

Answer:

C. Brucellosis