a nutrient that has an additional pharmacological effect when added to feeds, which may improve clinical outcomes after surgery. Novel substrates include the amino acids glutamine, arginine, and ornithine and possibly some fatty acids.
A compound on which an ENZYME acts: for instance, ribonucleic acid (RNA) is the substrate for ribonuclease (an enzyme that catalyses the breakdown of ribonucleic acid, a cellular compound involved in the synthesis of PROTEIN).... substrate
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