Computer software to calculate nutritional value

[Urs Wenger <urs_wenger@bluewin.ch>]

Does anybody of you know good computer software to assist me in
the optimization of the measuring out of the doses of the components of
possible combinations of different sources of energy, nutrients and roughage
to a perfectly balanced diet under alternating conditions of stress, physical
effort and state of health and training.
 I am aware that the computer could not do the more intelligent
part of the job where horsemanship an experience can only help. But it
could do the rather tedious job of calculating the nutritional value.

Urs