breeding half brother and sister mini horses

Question
hi i was wondering if it is ok to breed half brother and sister miniature horses?

i know it would be interbreeding so i am curious as to know whether there would be a problem?  i am wanting to purchase both, but dont want problems

please get back to me asap. thanks

Answer
anytime you breed a horse you can get a over a million different gene combinations. Mother nature like diversity.

When you breed close relatives, you cut down the number of genes that will be different because the related animals have some of the same genes. The closer the relative the more genes they have in common.

This can cause some hidden reccesive traits to show up that
can be highly undesireable. It is too much of a gamble for me to try.