I've been asked many times if Mangalitsa wool is good for spinning. I haven't yet heard of anyone spinning it. I think it is good for felt, insulation and fishing ties though.
In Spain, there's a center for wool processing which will have a variety of fiber animals - sheep, alpaca, rabbits - and even Mangalitsa.
So I guess if it is possible to spin Mangalitsa bristles into something, they'll do it.