He's a full belgian draft. I have no idea what the grain is, all the horses in the barn get it and the barn owner buys it from Cenex in bulk with the beat pulp.
We can't do free choice hay, he's only in his stall in the morning and at night for breakfast and dinner and he gets about 20-30 pounds of hay per day depending on the density of the bale. He gets way more than the other horses and he always has some left over in the morning. He's on grassy daily turn out from 9-5 with other geldings on 10 acres but he doesn't get to stay out there the whole time I bring him in around 3 to ride and work him.
I'll check with the rice bran, he didn't do very good with it in the past so we took him off. He just either wouldn't eat it or he'd eat it and nothing else and then drool it all back out.
I asked about corn oil and my vet and trainer said absolutely not. He's a picky eater but he loves fruits and veggies so it's always an experiment trying to figure out what he'll eat and sometimes he likes two things separately and not together (found that out with beat pulp and grain, grain HAS to be on top or he won't eat it).
They say drafts are suppose to have Low NSC(Sugars and starches) higher fat diets... so if the feed has "grains" in it that needs to be elimanated and replaced with something else..
Have you had his teeth check??
And you still need something for vitamins/minerals and amino acids..