That's what I want to do with my blue Swedish possibly. Wanted to do it with my muscovies too, but all I can find are blacks, whites and black and white. I can't find any other colors unless I get eggs through ebay which I'm wary about doingThis can be applied to many animals, especially with backyard poultry keepers. I've found the size and quality of some of my muscovy to be very... lacking. People get related chicks, they breed, their chicks breed together, etc.
I'm trying to get all unrelated stock, now, to improve my livestock.