Our animals have had 2 offspring so far, whose qualities are exactly 00.0%. We've been feeding the animals 8-10% cabbages. The parents were fed that since they were babies, all the way through to when they gave birth. And the offspring were being fed that stuff for their whole lives too.
Is it intended to work like turkey breeding where they birth something like +/- 5% of their parent's quality?
The fact that they are exactly 00.0% leads me to believe it is bugged.