Owino Eunice A
School of Biological Sciences, University of Nairobi, P,O, Box 30197 - 00100, Nairobi, Kenya.
Parasit Vectors. 2010 Jun 24;3:55. doi: 10.1186/1756-3305-3-55.
Ample evidence has shown that blood seeking mosquitoes locate their hosts by following odours produced by the hosts. Odour baited traps would therefore, provide a solution in controlling diseases spread by mosquitoes. Comparative studies were undertaken to determine the relative efficacies of two odour baits i.e. Limburger cheese and African traditional milk cream in trapping mosquitoes in the field in western Kenya.
Comparative efficacy studies were carried out in the field using Latin square experimental designs. In the first study, a counterflow geometry (CFG) trap (MM-x model; American Biophysics Corp., USA.) baited with Limburger cheese, man landing catches (MLC), Centres for Disease Control (CDC) light trap and an entry trap were compared. In the second study, three CFG traps baited with either Limburger cheese, African traditional milk cream or with no bait were compared and in the third study four CDC traps baited with either Limburger cheese, African traditional milk cream, light or with no bait were compared. Parameters like species, catch size, abdominal status, parity status and size of the collected mosquitoes were compared.
A total of 1,806 mosquitoes were collected (60% An. gambiae s.l and 25% An.funestus, culicines 15%). There was no significant difference in the number of An. funestus trapped by the CFG trap baited with Limburger cheese from those trapped by the MLC (P = 0.351). The Limburger cheese baited CFG trap collected significantly more gravid An. funestus than the MLC (P = 0.022). Furthermore, when the CFG trap baited with Limburger cheese and the CFG trap baited with milk cream were compared, there was no significant difference in the number of An. funestus collected (P = 0.573). The same trend was observed in the comparison of Limburger cheese baited CDC trap and milk cream baited CDC trap.
Limburger cheese and African traditional milk cream have a potential as effective odour baits for sampling/surveillance and as oviposition attractants for the malaria vector, Anopheles funestus.
大量证据表明，吸血蚊子通过追踪宿主产生的气味来定位宿主。因此，气味诱捕器可为控制蚊子传播的疾病提供一种解决方案。开展了比较研究，以确定两种气味诱饵（即林堡干酪和非洲传统乳脂）在肯尼亚西部野外诱捕蚊子方面的相对功效。
在野外采用拉丁方实验设计进行比较功效研究。在第一项研究中，对用林堡干酪作诱饵的逆流几何（CFG）诱捕器（MM-x型号；美国生物物理公司）、人工诱捕（MLC）、疾病控制中心（CDC）光诱捕器和入口诱捕器进行了比较。在第二项研究中，比较了三个分别用林堡干酪、非洲传统乳脂作诱饵或无诱饵的CFG诱捕器，在第三项研究中，比较了四个分别用林堡干酪、非洲传统乳脂、灯光或无诱饵作诱饵的CDC诱捕器。对收集到的蚊子的种类、捕获数量、腹部状态、产卵状态和大小等参数进行了比较。
共收集到1806只蚊子（冈比亚按蚊复合组占60%，嗜人按蚊占25%，库蚊占15%）。用林堡干酪作诱饵的CFG诱捕器捕获的嗜人按蚊数量与人工诱捕捕获的嗜人按蚊数量之间无显著差异（P = 0.351）。用林堡干酪作诱饵的CFG诱捕器捕获的孕卵嗜人按蚊明显多于人工诱捕（P = 0.022）。此外，比较用林堡干酪作诱饵的CFG诱捕器和用乳脂作诱饵的CFG诱捕器时发现，捕获的嗜人按蚊数量无显著差异（P = 0.573）。在用林堡干酪作诱饵的CDC诱捕器和用乳脂作诱饵的CDC诱捕器的比较中也观察到了相同趋势。
林堡干酪和非洲传统乳脂有潜力作为有效的气味诱饵用于采样/监测，并作为疟疾病媒嗜人按蚊的产卵引诱剂。
