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. 2016 Mar 18;11(3):e0151864. doi: 10.1371/journal.pone.0151864

Table 2. Induced sterility and male mating competitiveness index of HC, IHC and IGUA Aedes albopictus males in the large cages at a 5:1 (sterile: fertile) ratio.

Male: Male Fertility* (%) (Mean/Mean ± 95% CI) (Number of eggs estimated) IS (Mean ± SD) C (Mean ± SD)
Fertile control 86.0 (85.4–86.5) (2478) (Hn)
Sterile Control HC 0.1 (0–0.2) (2278) (Hs)
HC: GUA 20.0 ± 13.7 ab (4278) (Ho) 76.7 ± 8.7 ab 0.67 ± 0.34 ab
Sterile Control IHC 0.1 (0–0.2) (1765) (Hs)
IHC: GUA 15.7 ± 3.7 a (4836) (Ho) 81.7 ± 2.3 a 0.94 ± 0.17 a
Sterile Control IGUA 3.4 (2.9–3.9) (2124) (Hs)
IGUA: GUA 31.7 ± 13.6 b (4325) (Ho) 63.1 ± 8.6 b 0.41 ± 0.19 b

*:Two replicates each of the fertile and sterile control cages and four replicates of the experimental cages were performed.

CI: Confidence interval.

Hn: Mean egg hatch rate of fertile control cages; Hs: Mean egg hatch rate of sterile control cages; Ho: Mean egg hatch rate of treatment cages.

IS: Induce sterility, calculated as 100% minus the residual fertility values, which was calculated from Ho / Hn.

C: Male mating competitiveness index, calculated as: C = [(Hn—Ho) / (Ho—Hs)] * (N / S), where N and S were the numbers of fertile and sterile males.

Within column, values followed by different lowercase letters were statistically different using ANOVA analysis and Tukey hoc post-test (P<0.05).