She currently gets grass hay, she's in a paddock so no green grass for her. She also gets about 1lb of Purina Equine Senior along with 2 oz of Cool Calories. She still needs weight all around other than her hay belly. I have been starting her into work and training. The Equine Senior is a complete feed and I am only giving her a portion of what she should get as when I was giving her 6lbs a day she got so hot she was actually a danger to herself.
So my question is, I know she is lacking some nutrients, what should be fed to fill that? I am open to all suggestions, I am not bound to any certain brand or type of feed. Also perhaps she should be started on something for her joints as she is older and for the first time being made to work?