Originally Posted by trainerunlimited
I personally don't think its bad at all breeding a three year old as long as they are a decent size. I've heard breeding a four year old is better for the mare however, because it allows her to finish growing herself without the added strain of carrying a foal.
You can't just go off of size though. You need to look at the filly's joints. They don't close until they are over 5 years old. That's why you shouldn't ride young horses, and if they are ridden, it should be very lightly. So you breed a mare and add extra weight to her joints and knees that aren't closed yet? Not only that, all of the nutrition that you are feeding your mare is going to the foal, the mare is barely getting any. Just because her growth isn't stunted, doesn't mean that her body got all the nutrients that is should have.
And the fact that you say "I probably wouldn't have bred her" just makes me cringe.
What stallion owner in their right mind would ever breed a 2 year old. That's backyard breeding right there.
And not only that, your mare was bred as a 3 year old. And I've seen in another thread that you are going to breed your mare to another stallion as a 4 year old too? So there's going to be a baby on the ground, sucking this young mare dry, and your going to re-breed her?
Breeding a horse this young is like a 13 year old getting pregnant and having the baby.
Besides the physical aspect, a 3 year old, even a 4 year old is still and sometimes 5 year old are just too young mentally to care for a foal. So your taking an even bigger chance on having the mare not knowing how to properly care for the foal and the foal becoming an orphan.