How has modern science changed the care, breeding, and training of horses?

[Barefoottrimmer]

In the purest definition of care and training, I don't think modern science has had any effect.

Breeding is an entirely different matter. With artificial insemination, embryo transfer, and surrogate mares, etc., we can now produce several foals from one mare in one breeding season. Unfortunately, it is just another way that humans have devised to "make money" without any regard for the cruelty to the horses. It is so devastating to a mare to become pregnant, have the embryo flushed (then implanted in a surrogate mare) 3-4 times a year but nobody cares. Can you imagine your body being pregnant, all the changes in hormone levels, etc., and then, a procedure occurs and the pregnancy is over, the body has to readjust, the mare cycles, and it happens again. This has gotten so out of control. In the beginning, it was about keeping the horses able to compete or work and still get a baby, but then, as usual, it became about "more and more money", with no regard for the negative effects on the mares. Some suffer reproductive breakdown because of the abuse. It is just another "scientific" horror humans have inflicted on the helpless. Nothing is normal anymore because it is not as profitable.