I feed Native Earth, the generic version of Harlan Teklad. It's $0.70 a pound off Amazon.com (40 pound bag, or 5 pack of 40 pound bags), easy and convenient. I will also give my pregnant or nursing girls and growing babies a small amount of tofu to give them just a little something extra while their nutritional requirements are higher.

If I only had a few pets I'd feed a homemade diet based on fresh produce, with some grains and limited animal product.