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The life cycle of Hyalomma scupense (Acari: Ixodidae) under laboratory conditions
Xiaohong Yang1, Yuqi Zhao2, Xia Chuai2
1Department of Pathogenic Biology, Hebei Medical University, 361 Zhongshan East Road, Shijiazhuang, Hebei Province 050017, China; State Key Laboratory of Veterinary Etiological Biology, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, Gansu Province 730046, China.
Abstract:
The life cycle of Hyalomma scupense on rabbit hosts was investigated under laboratory conditions. Hy. scupense exhibited one- and two-host life cycles of 163.2 and 161.4 days, respectively. The incubation of eggs required an average period of 52 days, which was the longest period among the four developmental stages. The average time for pre-feeding of larvae was 3.5 days. It took 20 days for larvae to become engorged nymphs and 52.3 days to become engorged females. The duration of the pre-feeding, feeding, pre-oviposition, and oviposition stages of female adults was 2.3, 13.5, 27.5, and 27.9 days, respectively. The average weight of engorged females was 390.0 mg (ranging from 129.3 mg to 828.6 mg), which was 28.95 times the weight of unfed females. There was a positive relationship between the weight and the number of eggs laid by engorged females (r = 0.927). The reproductive efficiency index (REI) was 8.63.
