Nutrition questions (rice bran, soy, etc.)

[Heidi Sowards <ribbitttreefrog@yahoo.com>]

We have one horse that is a little bit of a hard keeper.
What is best for him, extruded soy or rice bran? He will
eat both, he also gets beet pulp, oil, supplements,  &
vit-e/sel. He is also on oat hay right now, starting to
switch to orchard grass with a little alfalfa (about 30%)

Is one of these considered higher energy, higher fat?

Opinions appreciated.

Heidi
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