Study on pathogenicity of muscovy duck flower liver disease .

番鸭花肝病病原的研究。

The muscovy company of london issues the first equity shares .

伦敦的muscovy公司发行第一张股票。

Table 2-2 death time of muscovy duck embryos .

表2-2病毒接种番鸭胚死亡时间。

Studies on growth rate and meat characteristics of muscovy duck , cherry valley duck and mule duck .

番鸭、樱桃谷鸭及半番鸭生长速度和肉品质的研究。

Sickness muscovy duck and the virus-carriers are this sickness main origins of infection .

病番鸭和带毒者是本病的主要传染源。