Might have to find one of those hacksaw blades. I ruined a knife just trying to finish off the job that the QVM stall assistant did. It was a cheapish knife, though - not going to risk our better knives.
I find it much easier to buy bulk chicken necks (fresh, you can get 12kg boxes from certain supermarkets in Queensland) and bulk blade steak from bulk butcher, and then i soak my vets all natural product, and just freeze in plastic containers. I mince chicken necks myself so i know its fresh and whats in it, and with the steak i just dice, i also add fresh vegetables. I dont use dry food or commercial packed food. My dogs get that in the morning and bones at night.