Stabilized rice bran

We have 6 horses and except for our 24 year old thorougbred all are happy and in excellent weight. With our thoroughbred we have had problems for several years keeping weight on him. He seems to do well in spring with fresh baby grass, but summer comes and he seems to get thin. We have tried oils, various weight building supplements with really no success. Until I found the stabilized rice bran, he finally seems to be gaining weight. Thanks fora great product, even better he likes it.
Andrea and Chico.