Amino Acid Intake of Chickens: Effects of Feeding Excess Amino Acids

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The voluntary preference of the chick was observed for amino acids and energy, while it was fed adequate intakes of all other nutrients. Excessive levels of various amino acids were present in a 13.8% protein synthetic basal diet. In contrast, other chicks fed the basal diet in two parts, namely, soy protein plus amino acids and glucose monohydrate plus amino acids, consumed 2.19% less total amino acids and 3.92% less total energy than the chicks fed the complete basal diet. These chicks utilized significantly less protein per gram of gain than the chicks fed the complete basal diet.