16.下列何者為雞感染Aegyptianella pullorum的主要傳播媒介..-阿摩線上測驗
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2F 終於....... 大四下 (2018/06/02)
A. persicus is a transmitting agent of Aegyptianella pullorum to fowls. The disease was successfully transmitted to 9 healthy chickens by adult ticks which had previously fed on infected chickens. Moreover, the tick can retain its infection after feeding on a healthy bird, as one adult transmitted the disease twice to healthy chickens. The shortest interval between feeding on an infected bird and a healthy chicken was 26 days. The incubation period in chickens after an infected tick has bitten varies from 12 to 15 days or more. An infected adult A. persicus may remain infected for at least 162... 查看完整內容 |
3F GF2019 高二下 (2020/01/20)
A. persicus = Argas persicus , Argas persicus, known as fowl tick or poultry tick, is a small soft-bodied tick that is found primarily on domestic fowl such as chickens, ducks, and geese. |