1. How is the stage of the estrous cycle determined in mares? 2. When do mares normally give birth to foals? 3. True or False: Mares should not be worked or exercised during gestation to prevent...

1. How is the stage of the estrous cycle determined in mares? 2. When do mares normally give birth to foals? 3.
True or False:
Mares should not be worked or exercised during gestation to prevent injury of the fetus. 4. Why is castration of males performed on horses that are not to be used in a breeding program? 5. Describe how horses are typically identified?