著名的北京鸭就是这儿产的。
北京鸭是过量喂食养大的。
各核团的分布与北京鸭和鸡的基本一致。
The distribution of all the nuclei were similar to Pekin duck and fowl.
培养优良的北京鸭不是一件容易的工作。
每处理组北京鸭随机饲喂1种试验日粮。
反应蛋白(crp)从北京鸭血清中分离和纯化。
C-Reactive protein (CRP) was isolated and purified from Peking duck serum.
本研究初步利用AFLP标记对半番鸭及其母本-北京鸭进行检测。
In this paper, AFLP was used to detect feather color trait in mule duck and its female parent Beijing duck.
当饲粮烟酸缺乏时，1 ~14日龄北京鸭色氨酸需要量显著升高。
The tryptophan requirement of Pekin ducks aged 1 to 14 days significantly increases when niacin is deficient in diets.
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.
北京鸭是我国十分优秀的肉鸭品种，在世界肉鸭育种中占有举足轻重的地位。
Peking duck is the most excellent meat-type breed and plays the important role in meat-type duck breeding.
以大体解剖和组织切片方法观察了8例北京鸭的心神经丛和心神经节的分布与构造。
The distribution and structure of the cardiac ganglia and nerve plexuses of 8 Pekin ducks were studied by using methods of gross anatomy and histology.
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.
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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