Beef heart is extremely nutritious and about ~ $1.39 a pound now. This is the best food I can store for the canines. I just canned up 300# of it for the cats and dogs, all of whom have an essential job. Leave a generous inch+ headspace. Beef heart has a lot of fat, which may be hard to come by anyway and is great for the dog's health so plan for it when you can the the meat.

Don't forget to put up food for them. In a pinch we can usually trap 75-90 raccoons a year after the poultry. Very icky but could be dog food.