Name three cattle diseases and their causes?

Clostridial Disease, or "Blackleg"

BRSV (Bovine Respiratory Syncytial Virus)

BVD (Bovine Viral Diarrhea)

Explanation:

Clostridial Disease, or "Blackleg" :Infection occurs when animals ingest bacterial spores while grazing. The bacterial spores penetrate the intestine and are disseminated via the bloodstream to the skeletal muscle, where the spores remain dormant.

BRSV (Bovine Respiratory Syncytial Virus): It is a very serious respiratory disease which replicates in nasal epithelium and then disperses throughout the upper respiratory tract to the bronchial tree.

BVD (Bovine Viral Diarrhea): BVD is transmitted in a number of ways. Either through a congenital infection of the fetus or after birth

answer; i believe the answer is (polygenic inheritance;

oxygen +1 most likely