Originally Posted by ThaiDye
Being somewhat new to horses, I had to look up OLWS to see what the scare was about. When I found out, I admit I had to wonder why the stallion was bred knowing he was a carrier? Granted, the research I did said BOTH parents had to have the gene to produce (a chance of) a lethal white, but why take the risk if you know one parent has the gene?
Because there is a test for it, and if only one parent has it, the foal cannot be homozygous for it. Poco was under the impression that her mare had been tested and was negative - and I am sure that if the testing had not been done, Poco would have done it before she even thought of breeding the pair.
Poco I am terribly sorry for your loss. You will be in my thoughts.