The Handle Animal skill is fairly detailed in most respects but in the CRB there is very little about actually rearing an animal.
It's stated that a wild animal can be reared from infancy to become domesticated with a DC of "15 + HD of animal", that up to 3 of the same type can be reared together, and that it can be taught tricks as it's raised.
My first question is a simple one; Does the "15 + HD of animal" mean that it is 15 + the number of HD the animal has? Like a 2d8 animal would have a rearing DC of 17?
My other question is a bit more abstract;
Does the time to rear an animal depend solely on the GM? Basically, at what point is the reared animal usable?