How can I fatten up my horses?

HUn i have yoyr same problem!My thoroughbred can not keep weight no matter how mych grain you give him. I figured though the best way to put pounds on fast is beat pulp. It has helped many people that i know with there horses gain weight , especially my thouroughbred. Start with little amoutns and gradually go up. If you have questions on how to feed it email me.