The N-P-K ratios were determined to be (2.49 - 0.84 - 1.50). This NPK ratio is the best in the animal kingdom, and guinea pigs produce a massive amount of manure. 1000 guinea pigs can produce 3000 kilograms of manure per month.....
Start a business where you sell guinea pigs for meat and sell the manure to hydro stores
I don't eat animals, so I wouldn't buy the meat, but I'd buy the poop.