01-11-2019, 07:24 AM
It's far simpler than you think. ALL mammals with any significant growth period follow a common pattern. Start with the arrival of spring with food and good weather. Time it early enough to avoid the worst of the insects. Subtract any den period and the normal gestation for that species. That is when that species will breed. Darwin said so and he meant it. They tell time by the photo period (length of sunlight).
For horses (with an 11 month gestation) that means foals hit the ground around April first (northern hemisphere) and the mare is ready to start the next one in about a month. Near the equator there is no variation in the photo period so they may breed at any time. The farther toward a pole you go (the later the snow melts) the later they will breed. You can put them under timed artificial lighting and move their breeding time any way you want. Professional breeders will do this to give the foal extra time to mature and give them an advantage in competition.
Keep in mind that this is mating, sex for reproduction. Sex for pleasure can be completely different. Any female can decide she wants to have fun at any time. A pregnant mare won't let a stallion close to her because if he tries to mate, she will lose the baby. I have been near raped by a pregnant mare. She had the wild hormones and knew that I wasn't the same as a stallion. That's why you make sure she enjoys her first time with a human. She'll remember.
