AN SC 260

Any chemical, element or compound in the diet that supports normal maintenance of life processes, growth, reproduction, or production of products or work

Nutrient required by the animal in relatively large amounts

Nutrient required by the animal in relatively small quantities

Elements or compounds required in the diet that connot be synthesized by the animal

Nutrients that can be synthesized by the animal from dietary precursors

Essential in the diet only under sertain conditions such as gestation, lactation, rapid growth, etc.

Chemical and physical breakdown of foods into smaller and simpler particles

Passage of molecules from the GI tract through the mucosal cells, into blood or lymph systems

Chains of amino acids joined by peptide bonds

Relatively short chains of peptides (tens to hundreds)

A chain of amino acids (hundreds to thousands) joined together with peptide bonds

A crop's yield is restricted by the lack of a single element, even though there may be sufficient quanitities of all other essential nutrients

Dietary protein which is not degraded by microbial action in the rumen