I have had experience with senior feed when fed to some horses it does make
them a bit more over exaggerated than their usual self. I find the horses
that don't need to be on senior feed(horse is 10 years old etc.) and the
trainer told the owner to put them on senior to put weight on the horse, is when
there is the personality change...I put the horse on Strategy and beet pulp, and
within a short time the horse is more manageable.
