I am kinda like DWEST I will supplement with straight meat. I usually boil mine first. I do like to give them a leg every now and then raw.
From everything I've read, boiling takes away A LOT! And can make the bone brittle. So i started giving it to them raw after freezing then thawing...and like i said before, the next day there is nothing left at all. Also seen where you shouldnt feed raw and kibble in the same day

It saw it on the internet, its gotta be true
