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INTRODUCTION
Pages 1-2

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From page 1...
... Only limited utilization of NPN compounds in nonruminant diets containing natural feedstuffs has been demonstrated to date. Whether future costs of protein and the availability of amino and alpha-keto acids make the inclusion of NPN compounds in nonruminant diets economically feasible remains to be seen.
From page 2...
... True protein refers to polypeptides of amino acids. Protein of natural feedstuffs contains varying proportions of true protein and naturally occurring NPN constituents.


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