Infectious serositis of duck is a sort of infectious disease which is acute,septicemic and contagium in the past 20 years of our country.It chiefly affects 2-7 week's duckling and its mortality is up to 50%-80%.Because of its usually mixed infection with other bacteria,it have influenced the development of duck industry and have caused huge economic loses.

鴨傳染性漿膜炎是我國近二十年來新出現(xiàn)的一種感染鴨福利免费视頻、鵝、火雞等多種禽類的急性在线欧美成人免费播放、敗血性、接觸性傳染病国产成人爆乳在线视频，主要感染2-7周齡雛鴨偷拍盗射，死亡率高達50%-80%，并因常與其他細菌混合感染日韩成人教师在线播放电影视频网站，嚴重影響了養(yǎng)鴨業(yè)的發(fā)展欧美日韩中文字幕综合一区二区人妻，造成了巨大的經(jīng)濟損失。

Like the Ugly Duckling, born in a humble duck-yard yet destined to become a swan, Andersen was born the son of a poor cobbler in the city of Odense,...

Sun国产曰批免费视频在线观看，我那句話是說過了些aV免费中文在线观看网站，但你以上這句話的言下之意是什么，瞞得了誰欧美黄色性爱视频第一页？

I know you wanted to help the duckling , and that ' s a good thing .

我知道你想幫助小鴨子亚洲综合色国产五月一区二区三区，這很好。

You don't understand me," says the duckling."

你不了解我欧美熟女口交，"丑小鴨說黄色有限公司的网站在线进入。"

I'll have to keep this duckling a secret .

我得把這只小鴨子藏起來99国产精品黄网站。

You are ugly, you are an ugly duckling.

你是丑陋的，你是一只丑小鴨

"I believe I must go out into the world again," said the duckling.

"我想我還是走到廣大的世界上去好欧美性猛交XXXXX按摩欧美，"小鴨說AV天堂综合网。

The duckling thought," I've never seen anything so beautiful."

小鴨心想："我從來沒有看過這么漂亮的東西。"

Muscovy duckling parvovirusis is a new infectious disease of Muscovy duckling with 22~62% disease rate and 85% fatality rate.

雛番鴨細小病毒病是一種新的番鴨傳染病在线观看黄色的网站，其發(fā)病率為22~62%黄色网站老女人，致死率為85%。

Oh, no, you are a duckling, an ugly duckling.

不超碰免，你是一只小鴨子91欧美在线视频，一只丑小鴨