Ok to my question. My BO just texted all of us to start thinking about winter feeding, and directly asked us with hard keepers to be thinking of adding either oils or rice bran to their food as well as upping their current feed amount. This past week, I was made aware that Purina sells Amplify which is the tiny nuggets in Ultium that makes it so sucessful with putting on weight. I've thought about potentially instead of rice bran (which I've used on other horses) or oils. However, I cannot find too much on the internet which one works better. My question is: Which would you use Amplify, rice bran or oils and why?