CHRONIC CASE OF CYSTIC OVARY IN A KANGAYAM COW

摘要

Cystic ovaries in cattle are characterized by follicular cysts or cystic degeneration of the graaffian follicle, luteal or luteinized cysts and cystic corpora lutea. The basic cause of this cyclic condition is a failure of the hypophysis to release sufficient amount of luteinizing hormone (LH) to produce ovulation and proper development of corpus Iuteum(S.J. Roberts, 1971). The incidence of cystic ovaries among Indian breeds of cattle and buffaloes Is low as compared to crossbred cows. The feeding of large quantities of concentrated high protein food stuffs probably contributes to the disease (A. Ramamohana Rao, 1997).