Seasonal occurrence of Rhipicephalus sanguineus in Okayama Prefecture, Japan and effect of temperature on development of the tick.
Seasonal occurrence of Rhipicephalus sanguineus in Okayama Prefecture, Japan and effect of temperature on development of the tick.
复制标题
日本冈山县血扇扇头蜱的季节性发生以及温度对蜱发育的影响。
DOI：
10.1292/jvms.58.225
复制
发表时间：
1996
期刊：
影响因子：
--
通讯作者：
T. Onishi
中科院分区：
文献类型：
--
作者：
H. Inokuma;K. Tamura;T. Onishi
在日本冈山县的一家犬舍检查了犬血红扇头蜱的季节性发生。8月下旬用杀螨剂处理后，蜱虫数量突然减少。在9月和10月检测到少量成虫和蜱虫，然后在11月初，当平均温度低于15摄氏度时，在狗身上没有发现蜱虫。然后在3月底发现3只狗感染了一些成年蜱，当时平均温度约为11摄氏度。在实验室条件下研究了温度对蜱产卵和发育的影响。温度从37 ℃降低到23 ℃，幼虫和若虫的寄生后期、产卵前期和产卵期均延长。在14摄氏度时产卵期极长，但蜱虫在14摄氏度以下不能发育。没有鸡蛋孵化低于14摄氏度。在寒冷条件下检查了附着大量成年蜱的能力。在10月、11月和3月，未饱食的成蜱可以附着在室外狗窝中的兔子的耳朵上，但在11月，它们不能完全饱食。从12月到2月，它们不能附着在兔子身上。在低温下也检查了蜱的寿命。未充血的成虫在12 ℃和50%相对湿度（RH）下保持140天或在12 ℃和50% RH下保持40天，然后在4 ℃和50% RH下保持100天后可以附着并充血。这些结果表明，R.在适宜的条件下，血红酵母可以在冈山县建立。
The seasonal occurrence of Rhipicephalus sanguineus on dogs was examined at a kennel in Okayama Prefecture, Japan. The number of ticks suddenly decreased after treatment with an acaricide in late August. Small numbers of adults and nymphs were detected in September and October, then ticks were not seen on the dogs early in November, when the mean temperature was below 15 degrees C. Then 3 dogs were found to be infested by some adult ticks toward the end of March, when the mean temperature was about 11 degrees C. The effects of temperature on the oviposition and the development of the tick were examined under laboratory conditions. The larval and nymphal post parasitic period, the pre-oviposition period and the oviposition period were prolonged when the temperature was decreased from 37 to 23 degrees C. The oviposition period was extremely long at 14 degrees C, but the tick could not develop below 14 degrees C. No eggs hatched below 14 degrees C. The ability to attach an engorge of adult ticks was examined under cold conditions. Unengorged adult ticks could attach to rabbits on the ear which were kept in an outdoor kennel in October, November and March, however they could not engorge completely in November. They could not attach on rabbits from December to February. The longevity of the tick was also examined under low temperatures. Unengorged adults could attach and engorge on rabbits after kept at 12 degrees C with 50% relative humidity (RH) for 140 days or 12 degrees C with 50% RH for 40 days followed by 4 degrees C with 50% RH for 100 days. These findings suggest that R. sanguineus could be established in Okayama Prefecture under optimum condition.