Adejinmi Johnson O
Department of Veterinary, Microbiology and Parasitology, Faculty of Veterinary Medicine, University of Ibadan, Ibadan, Nigeria.
J Parasitol Res. 2011;2011:824162. doi: 10.1155/2011/824162. Epub 2011 Apr 3.
Effects of water flooding on the oviposition capacity of engorged adult females and hatchability of eggs of Rhipicephalus sanguineus and Haemaphysalis leachi leachi under laboratory conditions were investigated. The durations of time of water flooding were 1, 2, 4, 6, 12, 24, 48, 72, 96, and 120 hours. Engorged females of R. sanguineus and H. leachi leachi did not oviposit after being flooded for more than 48 and 6 hours, respectively. The preoviposition periods of both species were longer than those of their controls. The number of eggs laid were significantly lower (P < .05) and higher (P < .05) than their controls, respectively, for R. sanguineus and H. leachi leachi flooded for 1-4 hours. The hatchability of eggs of both species decreased as flooding time increased. The percentage of hatchability was negatively correlated with flooding time and was highly significant (r = -0.97; P < .10). It is concluded that R. sanguineus tolerated simulated water flooding more than H. leachi leachi.
研究了在实验室条件下，水淹对饱血成年雌性血红扇头蜱和李氏血蜱产卵能力及卵孵化率的影响。水淹持续时间为1、2、4、6、12、24、48、72、96和120小时。血红扇头蜱和李氏血蜱饱血雌蜱分别在水淹超过48小时和6小时后不产卵。两种蜱的产卵前期均长于各自的对照。对于水淹1 - 4小时的血红扇头蜱和李氏血蜱，产卵数分别显著低于（P < 0.05）和高于（P < 0.05）各自的对照。两种蜱卵的孵化率均随水淹时间增加而降低。孵化率百分比与水淹时间呈负相关，且相关性极显著（r = -0.97；P < 0.10）。得出结论，血红扇头蜱比李氏血蜱更能耐受模拟水淹。
