In my setting there is a civilization that has a decisive advantage in a fundamentally agrarian world; it is consistently more efficient in its choices of crops and livestock.
Rodents reproduce faster than any other mammal order, and some of them can get quite large, such as the beavers, muskrat and of course capybara.
Would a suitably large rodent (whether it’s a capybara or selectively bred beaver isn’t super important) be an efficient and healthy food source for humans?
•Must reproduce faster than pigs and mature faster.
•Must produce an economically viable amount of meat.