We have an egg allergy in the household so have been keeping ducks for the eggs. As some of ours are more than 2.5 now, we find some aren't laying at all. We won't continue to feed them, but am wondering about whether the meat will be any good at all. We've only ever processed/eaten our 4-6 month olds (drakes become freezer ducks). Are they like beef that can just cook longer/slower or does that not work with duck?