So, cows should be in good body condition at calving and as soon as possible after calving. Many drugs and hormones have been used to treat anestrus, but none has proven successful. Instead, producers must employ excellent management techniques with the postpartum cow for good reproductive performance. Ovarian cysts Development of ovarian cysts in dairy cattle is a serious cause of reproductive failure. Ovarian cysts are generally defined as follicle-like structures at least 2.5 cm in diameter that persist for at least 10 days in the absence of a corpus luteum.
Follicular cysts occur as single or multiple cysts on one or both ovaries.
They are usually thin walled, and progesterone secretion by follicular cysts is low. Luteal cysts, are usually single structures on one ovary and are generally thicker-walled than follicular cysts. Luteal cysts may secrete moderate amounts of progesterone. The occurrence of ovarian cysts varies among herds and ranges from 6 to 30 percent. Cows are usually infertile as long as the condition persists.