William Bronson wrote: I was just researching rabbits that put on fat, for this very reason.
It would seem that there are no rabbit breeds that grow a lot fat, just some that grow a lot bigger than others.
Azoll or duck weed seem like they would be more efficient than growing land crops for feed.
With enough grass, geese are a good source of yummy fat.
Okra has a surprising amount of fat and protein.
I've been coveting dwarf chinkapin oaks.
They fruit precociously, grow as a hedge,expanding by suckers, and their acorns are so low in tannins,there is no need to leach them.
Press them for oil and high protein meal, or eat them whole.
I wonder if acorn butter is yummy?
The oil is said to be akin to olive oil.
I think they could be a great source of profit before "the collapse" and a good source of food after.
Peanuts or other ground nuts are another source of fat.
Pigeons,quail, guinea pigs, are all micro livestock that might turn plants into fat. All three are valuable in the market place as "exotic" meats.
The price for pigeon meat is outrageous, you can buy prime rib for less. Selling it could be a great way to make money.
Possums. Eat anything, reproduce like crazy, notably fatty if the Joy of Cooking is accurate.
Dumb enough that you might not mind killing them.