实验室条件下长角血蜱的生物学特性

为确定实验室条件下长角血蜱的生物学特性,以幼蜱、若蜱、雌性成蜱、雄性成蜱各1只为1组,共30组,分别接种到15只兔的耳朵上,每只兔耳上接种1组,待其饱血脱落后收集并分装于试管中,观察并记录各发育期的时间、吸血前后的体重变化、雌蜱产卵规律、孵化时间等项指标.结果表明:幼蜱、若蜱、雌蜱、雄蜱吸血后比吸血前体重平均增加15....

Study on Biological Characteristics of Haemaphysalis longicornis under Laboratory Conditions

To study the biological characteristics of Haemaphysalis longicornis under laboratory conditions,thirty groups of Haemaphysalis longicornis with one larvae,one nymph,one female and one male in a group were inoculated respectively to 15 rabbits with one group on every ear of the rabbits.The morphology,body weight,developmental phase,hatching of the Haemaphysalis longicornis or life cycle ect was observed under laboratory conditions.The experimental results were as follows: compared with unfed Haemaphysalis longicornis,the body weight of the engorged larvae,engorged nymph,engorged female and engorged male Haemaphysalis longicornis was increased on average 15.3±4.05 times,9.85±0.75 times,88.60±31.23 times,and 0.40±0.09 times respectively;the average prefeeding,feeding,premoulting periods or molting period of the larva was 6.3,3.8,14.2 and 7.4 d respectively;those of nymph was 7.1,5.4,16.9 and 10.2 d respectively;the average prefeeding,feeding,preoviposition or oviposition periods of the female was 7.6,9.4,7.8 and 7.23 d respectively;the average hatching period of eggs was 38 d;the whole life cycle of the Haemaphysalis longicornis was during 122～174 d,or 141.33 d on average.The female began to lay eggs during 7～9 d after engorgement and reached the summit after 4 d and decrease rapidly after 6 days.The largest fecundity is 7 058,and the lowest fecundity is 365.The average oviposition period was 7.23±1.82 d.Compared with the Haemaphysalis longicornis in natural environment,the biological characteristics of Haemaphysalis longicornis had little change except that the developmental phase was shortened to 141.33 days.