prov:value
| - Exemplary sources of nitrogen include, for example, protein, protein hydrolysates (e.g., peptones), polypeptides, amino acids, cornsteep liquor, beef or other meat extracts, soy protein products (e.g., isolates, flours, meals, etc.) yeast protein (e.g., yeast extracts, yeast autolysates, etc.), casein (hydrolyzed or unhydrolyzed), fish meal, urea, nitrates, ammonia, and variousother nitrogenous su
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