In addition to what you said here, the breeder with these whites DOES have issue with fertility if they are not clipped around the vent. My birds have 95-100% fertile eggs so far. I've had quitters and shrink wrapped chicks, granted - but all were fertile.Yes, they can, and some breeders trim when they are in breeding pens; others AI. Super typey males can have problems "connecting" with the girls. So yes, somewhat similar issues as with the turkeys.