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Table 3 Oviposition and hatchability of D. gallinae in the rearing system under the two photoperiods

From: Darkness increases the population growth rate of the poultry red mite Dermanyssus gallinae

Photoperiod Females Oviposition Hatchability
Total no. of eggs Mean no. of eggs/female Mean ± SD Number Percentage Mean ± SD
12:12 h L:D 50 173 3.46 3.62 ± 0.31 168 97.11 97.45 ± 0.70%
50 171 3.42 168 98.25
50 199 3.98 193 96.98
1:23 h L:D 50 302 6.04 5.87 ± 0.36 299 99.0 97.93 ± 0.92%
50 306 6.12 298 97.4
50 273 5.46 266 97.4
  1. Notes: Engorged females in the rearing system under two photoperiods were selected randomly and placed individually in each well of 96-well round bottomed ELISA plates. The numbers of eggs laid by each female were recorded as well as the development of eggs. The experiments were repeated in triplicate. The mites were observed every 24 h for one week. Oviposition and hatchability were calculated at day 7