Bill I have a question about breeding. I’ll use Miltank and SwoobatM as example. If the partnering is consistant and or remains off same species breeding. Will it affect the Miltank offspring’s physical features and they’re milk’s flavoring and nutrients?

Not really, no. Aside from the usual subtle deviations (that is, you’ll get slightly fluffier miltank calves and perhaps slightly crisper-tasting milk), the resulting miltank will be basically be like any other miltank. Crossbreeding really doesn’t result in the drastic deviations or hybridization you might see on the more imaginative websites online, I’m afraid.