Table 8 Biological parameters recorded for different tick linesa used in this study
Parameters | Pure lines | Crossed lines | Hybrid lines (F1) | Hybrid lines (F2) | ||||
|---|---|---|---|---|---|---|---|---|
G1 | G2 | G3 | G4 | G3 | G4 | G3 | G4 | |
Female feeding period (days) | 18.5 ± 1.4 | 21.4 ± 1.2 | 14.6 ± 2.3 | 18.0 ± 0.0 | 16.0 ± 0.0 | 13.3 ± 2.00 | 12.0 ± 0.0 | 11.0 ± 0.0 |
Female feeding success (%) | 40.0 | 55.0 | 30.0 | 50.0 | 50.0 | 60.0 | 60.0 | 40.0 |
Engorgement weight (g) | 0.2 ± 45.6 | 0.3 ± 45.4 | 0.3 ± 15.4 | 0.3 ± 45.8 | 0.3 ± 46.4 | 0.3 ± 88.1 | 0.3 ± 0.02 | 0.4 ± 0.0 |
Pre-oviposition period (days) | 3.3 ± 0.7 | 3.0 ± 1.0 | 2.1 ± 1.5 | 2.2 ± 1.3 | 3.4 ± 1.2 | 3.0 ± 0.6 | 1.0 ± 0.0 | 1.0 ± 0.0 |
Oviposition period (days) | 13.3 ± 1.0 | 14.2 ± 1.9 | 16.6 ± 2.0 | 15.4 ± 1.5 | 14.2 ± 2.6 | 17.3 ± 2.3 | 14.2 ± 2.9 | 11.3 ± 0.5 |
Engorged females laying eggs (%) | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 87.5 |
Egg-mass weight (g) | 0.1 ± 33.5 | 0.2 ± 29.4 | 0.2 ± 15.2 | 0.2 ± 40.5 | 0.2 ± 0.1 | 0.2 ± 0.1 | 0.2 ± 30.3 | 0.2 ± 21.0 |
Blood meal conversion index (%) | 57.4 | 66.2 | 67.1 | 68.4 | 73.4 | 78.2 | 59.0 | 66.9 |
Egg incubation period (days) | 5.5 ± 0.5 | 6.4 ± 0.9 | 5.5 ± 0.5 | 7.9 ± 1.1 | 9.2 ± 2.2 | 12.3 ± 2.3 | 10.5 ± 1.1 | 12.5 ± 1.8 |
Egg hatchability (%) | 100.0 | 100.0 | 95.5 | 99.4 | 86.0 | 93.0 | 100.0 | 98.0 |
Larval moulting success (%) | 99.6 | 98.8 | 98.6 | 98.7 | 99.5 | 99.5 | 95.0 | 80.0 |
Nymphal moulting success (%) | 100.0 | 100.0 | 100.0 | 100.0 | 96.3 | 99.5 | 98.2 | 95.3 |