We feed them to pigs and heifers( and a lamb one time), and we love it. We notice a huge difference in muscle size within a week or two and hair growth after about 3-4 weeks. The power fuel puts finish on very evenly, and it took us about 3 weeks to notice this on a VERY green heifer, she almost has the bloom she needs... Its very easy to feed..very palatable..and its relatively cheap.