Apples/Carrots

["Claudia Provin" <provincmk@fanninelectric.com>]

I have always thought of apples and carrots as "treats" and assumed
endurance riders added them to mixtures to get the horse to eat it better.
I'm thinking now I am wrong and they may have some real nutritional value
for horses---can someone enlighten me on their relative value, and when they
would be put to the best use?   Claudia