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Table 2 Effect of drying, brushing and quantifying Anopheles arabiensis eggs on adult life history traits in resulting mosquitoes

From: Large-scale Anopheles arabiensis egg quantification methods for mass-rearing operations

Parameters Egg type  
Fresh Dried
PR (%) 58.5 ± 3.2 63.1 ± 10.3 t = 0.513, df = 2, P = 0.6
ER (%) 94.6 ± 1.4 93.4 ± 1.5 t = 0.736, df = 5, P = 0.4
IR (%) 74.2 ± 8.2 84.6 ± 7.2 t = 1.704, df = 2, P = 0.2
F 772.3 ± 118.9 619.3 ± 331.4 t = 0.671, df = 5, P = 0.5
WL male (µm) 3122.8 ± 23.1 3118.5 ± 16.1 t = 0.132, df = 29, P = 0.8
WL female (µm) 3433.05 ± 22.4 3400.27 ± 18.4 t = 1.554, df = 20, P = 0.1
  1. Eggs were collected from small rearing cages, and either hatched immediately or dried before hatching into larval mass-rearing trays (100 × 60 × 3 cm), and then reared to adulthood. Results of a t test comparison between fresh and dried egg batches are presented
  2. Within each egg type all parameters were found not to be significantly different from each other (t test) (P > 0.05)
  3. PR pupation rate as a proportion of eggs, ER emergence rate as a proportion of total pupae, IR insemination rate as a proportion of all female adults, F fecundity (mean number of eggs per treatment), WL wing length