Can a cow be "stuck on cycle"?
I had never heard this phrase until a neighbor talked about her cow being stuck on cycle, or in perpetual estrus. Is this even possible? Thanks.
Bastrop County Texas
Yes. Such cattle are called "cystic." There are two types of cysts: follicular and luteal. Follicular cysts generate a lot of estrogen so the animal appears to be in heat for an extended time (until the cyst ruptures naturally or hormone treatments are effective). Luteal cysts produce a lot of progesterone. These animals do not come into heat and act as though pregnant (no cycling). Again, a hormone injection can usually remedy the situation. These cysts can easily be diagnosed with an ultrasound machine, by blood testing, or more commonly by a competent veterinarian performing a reproductive exam on the animal.