Anybody use Nuetrena xtn? I have a ottb, 7 year, moderate exercise shows 2'3. Needs to bulk up more. Right now mixing 1/2 safe choice and xtn. Thinking of switching all to xtn. Have tried wheat germ oil, weight builder, beet pulp, a daily dewormer, nothing wants to bulk him up, he gets plenty of hay daily.
Any comments or reviews???? Thanks