Twice a year we put about 50 chickens in our freezer. We are using kitchen knives to cut off feet and cut thru other bones. It is very difficult to cut thru with these knives. (We also use same knives for cutting up goat meat, cutting thru some smaller bones in doing so; using a hacksaw for leg bones on goats. Such a hacksaw is too large to use with chickens.) Does anyone know where we might get a knife for cutting up our chickens?