Laboratory studies on the possibility of Culex Quinquefasciatus to Harbor Hepatozoon SP. infecting cerastes cerastes cerastes viper in Egypt

A successful experimental infection of Culex quinquefasciatus with Hepatozoon sp. Infecting Cerastes cerastes cerastes viper was carried out under laboratory conditions of 24 +/- 3 C and 60-70% R.H..The period monitored for complete sporogonic cycle was 21 days. The effect of high parasitimic blood meal was nonsignificant [P>0.05] on preoviposition period and hatchability. Meanwhile a highly significant reduction was observed in oviposition rate, number of deposited eggs, number of hatched larvae and longevity [P<0.01]. On the contrary moderate infection with Hepatozoon revealed a great significant increase in fe- cundity [P<0.01] and a nonsignificant decrease in longevity [P>0.05]

Influence of amphibian and reptile on the feeding preference, longevity and reproductive capacity of Egyptian culex [culex] pipens linneaus [dipera-culicidae]

Using Bufo regularis and ten reptile species as hosts for Culex pipiens under laboratory conditions revealed a great effect on feeding preference as a significant long feeding periods together with a significant reduction in the blood meal ratios were recorded. Female mosquitoes offered the experimental animals showed a short life span with different significant levels. A recognizable reduction in the reproductive fitness of Cx. pipiens females was recorded. Delayed oviposition and low ICI values was obtained. The percentage of egg hatching was not affected by the experimental animals

Laboratory studies on the possibility of culex [culex] pipiens L. to harbour and transmit hepatozoon matruhensis to the Egyptian snake psammophis schokari

A successful experimental infection of Psammophis schokari snake with Hepatozoon matruhensis through Culex [Culex] pipiens bites was carried out under laboratory condition of 20 +/- 1°C and 60-70% R.H. The period monitored for gametocyte maturation ranged from 38 to 42 days while the recorded prepatent period ranged from 28 to 35 days. The effect of infection was nonsignificant on longevity, incubation period and percenttage of egg hatching [P > 0.05]. Meanwhile a significant increase [P < 0.05] in the preoviposition period together with a significant reduction [P <0.001] in the number of eggs deposited of infected females were recorded

effects of lobarotory Hepatozoon gracilis infection on the fecundity, mortality and longevity of Culex [Culex] pipiens hinneans [Diptera: Culicidae] in Egypt

Laboratory observations on the effect of Hepatozoon gracilis on the egg production of the mosquito Cx. [Cx.] pipiens Linnaeus under laboratory conditions revealed that H. Gracilis infected mosquitos produced significantly fewer eggs than the uninfected ones. The egg production decreased as the parasite burdens increased. The reduction in blood meal size in infected females did not reduce fecundity. No size difference was detected between oocyst-infected and uninfected females, although sporozoite positive females were significantly large. The preoviposition period was significantly affected, while the incubation period and percentage of egg hatching showed no significant changes. The longevity of female infected mosquitos decreased insignificantly than in the uninfected ones