Aguirre D H, Viñabal A E, Guglielmone A A
Instituto Nacional de Tecnología Agropecuaria, Estación Experimental Agropecuaria Salta, Argentina.
Exp Appl Acarol. 1999 Feb;23(2):159-64. doi: 10.1023/a:1006006711983.
A colony of Amblyomma neumanni was started with engorged females collected from cattle in the province of Salta (24 degrees 51'S, 65 degrees 33'W), Argentina. The larvae and nymphs were fed on rabbits and the adults on calves. The non-parasitic stages were maintained in darkness at 27 +/- 1 degrees C and 83-86% RH. The life cycle (pre-feeding period not tested) had a mean duration of 205.7 days. The mean time (days) for the different phases of the cycle were as follows: feeding of females 8.8, pre-oviposition 23.8, oviposition 41.4, minimum egg incubation 76.1, feeding of larvae 8.5, pre-moult to nymphs 16.4, feeding of nymphs 7.9 and pre-moult to adults 22.8. The mean recovery rates of larvae, nymphs and females were 83.8, 85.6 and 89.3%, respectively. The nymphs moulting to females were heavier (8.1 +/- 2.34 mg) than those moulting to males (6.0 +/- 2.34 mg; p < 0.01), but their range of engorgement weight showed overlap (2.3-16.2 versus 2.2-12.8 mg, respectively). Two gynandromorphs were detected between the nymphs. A comparison of biological parameters of A. neumanni with other American Amblyomma species from mammals is presented.
从阿根廷萨尔塔省(南纬24°51′,西经65°33′)的牛身上采集饱血雌蜱,建立了纽曼硬蜱种群。幼虫和若虫以兔为食,成虫以牛犊为食。非寄生阶段饲养于黑暗环境中,温度为27±1℃,相对湿度为83 - 86%。生命周期(未测试预吸血期)平均持续时间为205.7天。该周期不同阶段的平均时间(天)如下:雌蜱吸血8.8天、产卵前期23.8天、产卵期41.4天、最短卵孵化期76.1天、幼虫吸血8.5天、蜕皮至若虫前期16.4天、若虫吸血7.9天、蜕皮至成虫前期22.8天。幼虫、若虫和雌蜱的平均回收率分别为83.8%、85.6%和89.3%。蜕皮为雌蜱的若虫比蜕皮为雄蜱的若虫更重(8.1±2.34毫克对6.0±2.34毫克;p<0.01),但它们的饱血重量范围有重叠(分别为2.3 - 16.2毫克和2.2 - 12.8毫克)。在若虫中检测到两只雌雄嵌合体。本文还比较了纽曼硬蜱与其他寄生于哺乳动物的美洲硬蜱属物种的生物学参数。