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中华按蚊对周期型马来丝虫的实验感染指数及幼虫黑化现象的探讨 被引量:1

EXPERIMENTAL INFECTION INDEX OF ANOPHELES SINENSIS AND MELANIZATION OF PERIODIC BRUGIA MALAYI LARVAE
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摘要 本文报道用9种不同密度马来微丝蚴感染中华按蚊后,所进行的系列观察。结果表明;蚊体内微丝蚴的吸入量、感染强度与感染微丝蚴密度呈正相关;蚊虫存活率、宿主效率则与微丝蚴密度呈负相关。在本实验室条件下,蚊龄为3~5d、微丝蚴密度为200条/10μ1时,中华按蚊感染后可获较多三期幼虫。本文对幼丝虫的黑化现象、宿主效率降低的原因进行了讨论;并按Kartman和Wharton实验感染指数公式估算了基本实验数据,对两种指数进行了分析讨论。 This paper deals with the infection index of Anopheles sinensis infected with the blood meals of 9 different microfilarial densities (5-300 mf/10μl) of periodic Brugia malayi. The results indicated that the mean number of microfilariae (mf) ingested by mosquitoes increased with the mf-density of the blood meal. The infection rates of vectors were 30, 65, 93 and 100%, when mf-densities were 5, 10, 20 and 50 mf/10μl respectively. Although the infection rate was 100% when mf-densities were larger than 50(100, 150, 200, 250, 300) mf/10μl. the infection intensities were gradually increased from 17.2 to 51.4 and the host efficiencies were decreased from 0.4135 to 0.2328. The infection intensities and host efficiencies of low mf-densities (5, 10, 20, 50 mf/10μl) were 1.22-8.40 and 0.5669-0.6356 respectively. Under the condition of 27.5±0.5℃, RH75±5%, the developmental period from mf to third stage larva was 8 days and numerous infective larvae could be harvested when mf-density was 200 mf/10μl. The relationship between mf-density and host efficiency, number of melanized larvae and susceptibility of vector, (experimental infection indices of Kartman and of Wharton were discussed.
作者 罗华 瞿逢伊
出处 《中国寄生虫学与寄生虫病杂志》 CAS CSCD 北大核心 1990年第4期260-263,共4页 Chinese Journal of Parasitology and Parasitic Diseases
关键词 中华按蚊 马来丝虫 感染指数 Anopheles sinensis, Brugia malayi, melanization, index of experimental infection.
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参考文献3

  • 1黄炯烈,中国寄生虫学与寄生虫病杂志,1988年,6卷,90页
  • 2黄炯烈,广东省寄生虫学会年报,1987年
  • 3团体著者,1958年全国寄生虫病学术会议资料选集,1959年

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