Chisulumi Paulo S, Nampelah Bahati, Yohana Revocatus, Philbert Anitha, Kweka Eliningaya J
Department of Zoology and Wildlife Conservation, College of Natural and Applied Sciences, University of Dar es Salaam, Dar es Salaam, Tanzania.
Department of Medical Parasitology and Entomology, School of Medicine, Catholic University of Health Sciences, P.O. Box 1464, Mwanza, Tanzania.
J Parasitol Res. 2022 Jun 18;2022:6313773. doi: 10.1155/2022/6313773. eCollection 2022.
Diet quality is of paramount importance for egg batch size, longevity, and mortality of vector mosquitoes. Oviposition site presence and absence assumed to be dry season means a lot to the survivorship and mortality of most anthropophilic malaria vectors in sub-Saharan Africa. This study has assessed the effect of different diets and oviposition-site deprivation (OSD) on survivorship, longevity, and mortality of s.s. To determine the effect of diet and OSD on mortality, gonotrophic dissociation rates, longevity, and survivorship, six treatments were employed: Blood Fed with Oviposition (BFO), Blood Fed without oviposition (BF), Blood and Sugar Fed with Oviposition (BSFO), Blood and Sugar Fed without oviposition (BSF), Sugar Fed with Oviposition (SFO), and Sugar Fed without oviposition (SF). Mortality and gonotrophic dissociation were monitored daily. This study found that female mosquitoes offered blood meals with sugar solution and oviposition deprivation survived longer than those deprived of oviposition deprivation. Similarly, female mosquitoes fed on blood and provided with oviposition deprivation lived longer than those without oviposition deprivation. The gonotrophic dissociation rates were found to be lower in groups provided with oviposition deprivation. Our results show that OSD has a direct impact on the survivorship, gonotrophic dissociation rate, and longevity of the malaria anthropophilic vector, s.s., regardless of the diet.
饮食质量对于媒介蚊子的批次产卵量、寿命和死亡率至关重要。产卵场所的有无（假设为旱季）对撒哈拉以南非洲大多数嗜人疟原虫媒介的生存和死亡意义重大。本研究评估了不同饮食和产卵场所剥夺（OSD）对冈比亚按蚊生存、寿命和死亡率的影响。为了确定饮食和OSD对死亡率、生殖营养分离率、寿命和生存的影响，采用了六种处理方式：有产卵的血饲（BFO）、无产卵的血饲（BF）、有产卵的血糖饲（BSFO）、无产卵的血糖饲（BSF）、有产卵的糖饲（SFO）和无产卵的糖饲（SF）。每天监测死亡率和生殖营养分离情况。本研究发现，提供血餐加糖水且剥夺产卵的雌蚊比未剥夺产卵的雌蚊存活时间更长。同样，血饲且剥夺产卵的雌蚊比未剥夺产卵的雌蚊寿命更长。在剥夺产卵的组中发现生殖营养分离率较低。我们的结果表明，无论饮食如何，OSD对嗜人疟原虫媒介冈比亚按蚊的生存、生殖营养分离率和寿命都有直接影响。
