Fattening Sheep Feed Formula. Feed Formula of Fattening Sheep (drylot feeding): 21.5% of maize meal, 21.5% of grass powder, 21.5% of soybean cake, 17% of corn kernel, 10.3% of peanut cake, 6.9% of wheat bran, 0.7% of salt, 0.3% of urea, 0.3% of additive, and mixed uniformly. For the first 20 days, the average feed is 350g per individual per day