Feeding and resting behaviour of malaria vector, Anopheles arabiensis with reference to zooprophylaxis
Feeding and resting behaviour of malaria vector, Anopheles arabiensis with reference to zooprophylaxis
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DOI：
10.1186/1475-2875-6-100
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发表时间：
2007-07-30
期刊：
影响因子：
3
通讯作者：
Kweka, Eliningaya
中科院分区：
文献类型：
--
作者：
Mahande, Aneth;Mosha, Franklin;Kweka, Eliningaya
背景资料：在减少疟疾传播方面，有效的动物预防最重要的因素是一种强烈嗜动物的蚊子，阿拉伯按蚊的优势种群。方法：采用气味诱蚊器、灯光诱蚊器和手捕法，在室内和坑式诱蚊器中对按蚊的取食偏好行为进行了研究。实验小屋用于释放和再捕获实验。结果：在坦桑尼亚北方下莫希地区，阿拉伯按蚊占按蚊总数的99%以上。在Mabogini阳台小屋进行的实验性释放/捕获试验中，An。阿拉伯按蚊的嗜外性（80.7%）高于冈比亚按蚊（59.7%）和库蚊（59.7%）。(60.8%).在Mabogini进行的OBET实验总共收集了506个An。在涉及人类、牛、绵羊、山羊和猪的四个不同试验中，来自牛的气味吸引了90.3%（243），而来自人的气味吸引了9.7%（26），差异显著（P = 0.005）。绵羊、山羊和猪的气味分别占9.7%、7.2%和7.3%。在An中估计HBI。从三个较低的莫希村的房屋中收集的阿拉伯按蚊表明，与没有牛的房屋相比，从有牛的房屋中收集的蚊子的比率较低。室外采集的蚊虫HBI（0.1-0.3）也低于室内采集的蚊虫（0.4-0.9）。结论：在讨论结果时，可参考对按蚊嗜外性、嗜动物性和取食性的观察。arabiensis，这是有益的动物预防。建议在具有主要AN的区域。为了最大限度地发挥动物预防的作用，应将牛安置在靠近住宅的地方。通过在住宅周围饲养牲畜，可以进一步加强保护人类免受疟疾的影响。
Background: The most important factor for effective zooprophylaxis in reducing malaria transmission is a predominant population of a strongly zoophilic mosquito, Anopheles arabiensis. The feeding preference behaviour of Anopheline mosquitoes was evaluated in odour-baited entry trap (OBET).Methods: Mosquitoes were captured daily using odour-baited entry traps, light traps and hand catch both indoor and in pit traps. Experimental huts were used for release and recapture experiment. The mosquitoes collected were compared in species abundances.Results: Anopheles arabiensis was found to account for over 99% of Anopheles species collected in the study area in Lower Moshi, Northern Tanzania. In experimental release/capture trials conducted at the Mabogini verandah huts, An. arabiensis was found to have higher exophilic tendency (80.7%) compared to Anopheles gambiae (59.7%) and Culex spp. (60.8%). OBET experiments conducted at Mabogini collected a total of 506 An. arabiensis in four different trials involving human, cattle, sheep, goat and pig. Odours from the cattle attracted 90.3% ( 243) compared to odours from human, which attracted 9.7% ( 26) with a significant difference at P = 0.005. Odours from sheep, goat and pig attracted 9.7%, 7.2% and 7.3%, respectively. Estimation of HBI in An. arabiensis collected from houses in three lower Moshi villages indicated lower ratios for mosquitoes collected from houses with cattle compared to those without cattles. HBI was also lower in mosquitoes collected outdoors (0.1-0.3) compared to indoor (0.4-0.9).Conclusion: In discussing the results, reference has been made to observation of exophilic, zoophilic and feeding tendencies of An. arabiensis, which are conducive for zooprophylaxis. It is recommended that in areas with a predominant An. arabiensis population, cattle should be placed close to dwelling houses in order to maximize the effects of zooprophylaxis. Protective effects of human from malaria can further be enhanced by keeping cattle in surroundings of residences.