Diagnosis and Treatment of Cows with Cystic Ovaries

Abstract

Next to anestrus or failure of heat detection and repeat breeding, cystic ovaries are the most common cause of infertility in dairy cattle in the United States. Roberts has cited reports to indicate that over 10 percent of problem breeding cows have cystic ovaries and that the incidence of cystic ovaries appears to be rising rapidly since about 1950, possibly associated with increased milk production and artificial insemination.