一种野鸭（绿头鸭），其雄鸟具有绿色的头和颈。大部分驯化了的家鸭都是绿头鸭的后裔。
A wild duck (Anas platyrhynchos) of which the male has a green head and neck. Most domestic ducks descend from the mallard.
水禽被认为是流感病毒的重要宿主，尤其是家鸭。
Waterfowl are considered as the important host of influenza a viruses, especially domestic ducks.
一些禽鸟物种，例如家鸭，可能窝藏该病毒而不显示症状。
Some avian species, such as domestic ducks, may harbour the virus without displaying symptoms.
鸭疫里默氏杆菌病是家鸭、火鸡和多种其它鸟类的一种接触传染性疾病。
Riemerella anatipestifer infection is a contagious disease of domestic ducks, geese, turkeys and various other domestic and wild birds.
目的考查姜黄素对家鸭脂肪肝模型肝脂、血脂的干预效果，并研究其作用机制。
ObjectiveTo observe the interventional effects of curcumin on liver lipid and serum lipid in a model ducks with fatty liver and its mechanism.
本实验主要对健康家鸭、家鸡、乌鸡和鸽子这四种家禽的血清免疫复合物进行研究。
The experiment investigated the circulating immune complexes of healthy duck, chicken, black-bone chicken and pigeon.
根据古代文献记载，中国人以栖息在江上一种绿色家鸭比喻蓝色的江水，因此命名为鸭绿江。
According to ancient records, the Chinese people to live in Green's home on a blue duck analogy of the river, so named for the Yalu river.
最终，沃利不再去关注那些头顶飞过的野鸭群，甚至对他们视而不见。他终究变成了一只家鸭。
Eventually Wally no longer paid any attention to the wild ducks flying overhead. He hardly even noticed them. He had, after all, become a barnyard duck.
绿头鸭一种野鸭（绿头鸭），其雄鸟具有绿色的头和颈。大部分驯化了的家鸭都是绿头鸭的后裔。
A wild duck(Anas platyrhynchos)of which the male has a green head and neck. Most domestic ducks descend from the mallard .
绿头鸭一种野鸭（绿头鸭），其雄鸟具有绿色的头和颈。大部分驯化了的家鸭都是绿头鸭的后裔。
A wild duck(Anas platyrhynchos)of which the male has a green head and neck. Most domestic ducks descend from the mallard .
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