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目的通过实验室驯化的不同宿主型猫栉首蚤对宿主动物的吸血率和饱血率比较研究,为开展猫栉首蚤的传染病传播机制及媒介效能等研究提供依据。方法观察刚刚羽化、30 min内羽化和1~4日龄的大白鼠宿主型、小白鼠宿主型和猫宿主型猫栉首蚤,在不同时间内对大白鼠、小白鼠和猫的吸血和饱血情况,并利用SAS 9.4软件对吸血率和饱血率进行统计学分析。结果 1 d内羽化及3、4日龄的大白鼠株与小白鼠株猫栉首蚤其吸血率差异无统计学意义;2~4日龄的猫栉首蚤饱血率差异有统计学意义(大白鼠株猫栉首蚤:χ~2=136.206,P<0.001;小白鼠株猫栉首蚤:χ~2=219.709,P<0.001);大白鼠株及小白鼠株猫栉首蚤的吸血率和饱血率均随着吸血时间的延长呈递增趋势;猫株猫栉首蚤对3种供血动物的喜好顺序为猫>大白鼠=小白鼠,大白鼠株猫栉首蚤为大白鼠>猫>小白鼠,小白鼠株猫栉首蚤为小白鼠=猫>大白鼠。结论羽化后不同时间、不同吸血时间及不同供血宿主均对猫栉首蚤的吸血率和饱血率产生影响,提示猫栉首蚤的适应能力强,可产生宿主分化并能发挥更大的媒介效能。
OBJECTIVE: To compare the blood-sucking rate and full-blood rate of host animals in domesticated cats with different hosts, and to provide a basis for the research on the transmission mechanism and vector efficacy of infectious diseases of Ctenocephalides felis. Methods The host-type, host-type and host cat-type fleas of females, newly emerged within 30 min and 1 to 4 days old were observed for blood-sucking and full-fledged rats, cats and cats at different times Blood conditions were analyzed statistically using SAS 9.4 software. Results There was no significant difference in sucking rate between feathering and 3, 4-day-old white rat strains and that of white cats and white rats in the first day, and the difference was statistically significant between 2 and 4 days old (Cats and cats fleas in rats: χ ~ 2 = 136.206, P <0.001; cats and flies in mice: χ ~ 2 = 219.709, P <0.001) Blood-sucking rate and full-feeding rate all showed an increasing trend with the increase of blood-sucking time. The preference order of cats and flies was cats> white rats = white rats, cats and cats were white rats > Cats> mice, mice strains Ctenocephalides flea mice = cats> rats. Conclusions The blood-sucking rate and full-feeding rate of Ctenocephalides flosses were influenced by different blood-sucking time and different blood donor hosts at different times after eclosion, suggesting that Ctenocephalides felis could be adapted well and could produce host differentiation and could play a bigger medium efficacy.