The Indians used to make pemmican so they would have food to eat on hunting trips and as a way of preserving their food. Tactical Intelligence has a recipe to make your own that looks like it would be really good for you in case of emergency or for hunters and backpackers or anyone needing a nutritious ready to eat food.
Pemmican: The Original MRE Recipe
http://www.tacticalintelligence.net/blog/how-to-make-pemmican.htm
Bear Valley Pemmican Bars, Fruit & Nut, 3.75-Ounce Bars (Pack of 12)
Nesco FD-75A 700-Watt Food Dehydrator
Excalibur 2900ECB 9-Tray Economy Dehydrator, Black