I'm an exercise rider at a local thoroughbred farm and brought home my first OTTB almost two weeks ago. He's a 3 year old, born on the farm but had just shipped back from the racetrack the day before I brought him home. He has some bone chips and therefore is not able to hold up to daily galloping. I've been spoiled by two super easy keepers for years and years and need suggestions for best grain and fattening supplements, without adding too much energy. He's currently eating my horse's grain which is relatively low fat. I'm bad with weighing (definitely need to take the scale out tonight), but give him 2 large scoops 2x a day, and give him 4 ounces of a weight builder/body conditioner supplement (forget what it's called). He was a bit fidgety about eating the grain as it's not the sweet feed he was used to getting, so I've been mixing in some molasses to encourage him to clean it up, and fir the last week he has been! He's a bit fidgety with hay also, but I've noticed that he is eating it more now. I know at the farm, it's not unusual for the horses to spread the hay throughout their stall and waste it. I can't afford that nonsense, so I started putting it in a hay rack which he didn't like at first, but now he's eating just fine. Any suggestions for quality grains and fattening supplements that you've found to work are appreciated! He's not skinny as far as working thoroughbreds go, but I don't like seeing any ribs on my horses. He did tend to be an easy keeper when he was younger, but now he's pretty tall, narrow and leggy.