I've been feeding a mixture of non-medicated hog grower feed, cheerios, black-oil sunflower seeds, a tiny bit of 18% protein dog food(good brand), puffed wheat, puffed rice, and a few other sugarless cereals. They seem to actually do better on this than on the lab blocks(I used Mazuri 9F; 16% protein, 9% fat). I've noticed less infanticide, and the adults maintain their weight better.