摘要本试验旨在研究1 ~ 14日龄北京鸭烟酸与色氨酸的互作关系。
Abstract: This experiment was conducted to study the interrelationship between tryptophan and niacin of Pekin ducks aged 1 to 14 days.
综合以上试验结果得出，北京鸭饲粮中烟酸与色氨酸之间的互作关系表现在饲粮烟酸水平对色氨酸需要量产生显著影响。
In conclusion, the interrelationship between niacin and tryptophan in diets is supported by significant effects of dietary niacin on tryptophan requirement of Pekin ducks.
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