You can control it to some degree but it is not 100%. Depending on when you AI the mare vs. when the semen was collected and when the mare ovulates. I have had some success with it in the past but again not something I would guarantee.IF you asking about choosing the sex pre-insemination via AI, DNA and all the science stuff, I don't think so. not yet
I've never raised rats or rabbits :lol: Kittens I can tell pretty well but your right its more difficult. Horses of course are very easy to determine gender.Some mammals it is hard to tell at birth, like rabbits. Even with cats or rats it is hard for an untrained person to tell gender at birth. So the OPs question makes sense.
Horses are more like puppies as far as that goes. It is easy to tell as soon as they are born.
unless its 2 in the am, your running on a full days work and no sleep, and dont double check, then you think you have a chocolate filly untill you catch it peeing, and you know its NOT a filly LOLI think you have them confused with chickens. Its hard to tell what a chick is until its older. With most mammals its pretty obvious what sex they are at birth.
IF you asking about choosing the sex pre-insemination via AI, DNA and all the science stuff, I don't think so. not yet