They opened the bag - there were the corpses: untouched dead chickens - with heads and everything in general... the owner went to take the pill from shock.

This is the best food for predators. What for cats, what for cats. They, you know, eat the prey entirely, and they also need bones for health. Industrial foods are just trying to reproduce such a composition with more or less success. Only live or freshly slaughtered daily chickens can be better, but the first falls out for ethical reasons, and the second for practical reasons. Unfortunately, in our city at least frozen is not sold, or I will not go to the poultry factory myself, there is no car.