| Autor: |
Ilboudo K; Centre International de Recherche-Développement sur l'Elevage en zone Subhumide, Bobo-Dioulasso 01 BP 454, Burkina Faso., Camara K; Centre International de Recherche-Développement sur l'Elevage en zone Subhumide, Bobo-Dioulasso 01 BP 454, Burkina Faso.; Institut Supérieur des Sciences et de Médecine Vétérinaire (ISSMV), Dalaba BP 09, Guinea., Salou EW; Centre International de Recherche-Développement sur l'Elevage en zone Subhumide, Bobo-Dioulasso 01 BP 454, Burkina Faso.; Département de Sciences Biologiques/UFR-SVT, Université Nazi Boni (UNB), Bobo-Dioulasso BP 1091, Burkina Faso., Gimonneau G; Centre International de Recherche-Développement sur l'Elevage en zone Subhumide, Bobo-Dioulasso 01 BP 454, Burkina Faso.; Centre de coopération Internationale en Recherche Agronomique pour le Développement (CIRAD), Unité Mixte de Recherche, Interactions Hôtes-Vecteurs-Parasites-Environnement dans les Maladies Tropicales Négligées Dues aux Trypanosomatidés (UMR INTERTRYP), F-34398 Montpellier, France.; Interactions Hôtes-Vecteurs-Parasites-Environnement dans les Maladies Tropicales Négligées dues aux Trypanosomatides (INTERTRYP), Université de Montpellier, Centre de coopération Internationale en Recherche Agronomique pour le Développement (CIRAD), Institut de Recherche pour le Développement (IRD), F-34398 Montpellier, France. |
| Abstrakt: |
The biological quality of sterile male insects produced in a mass-rearing facility is a prerequisite for the success of the SIT, which is a component of area-wide integrated pest management (AW-IPM). Indeed, sterile male insects released in the field must have a good mating performance in order to compete with wild males, but they must also present the required level of sterility. In the present study, the biological quality of sterile male Glossina palpalis gambiensis produced in a mass-rearing insectary was assessed through quality control testing. The mating performance of irradiated males was assessed in walk-in field cages. Irradiation had no effect on adult emergence but significantly reduced the percentage of operational flies (from 89.58% to 79.87%) and male survival (from 5 to 4 days, on average). However, irradiation did not impact the sterile male insemination potential, with all females inseminated and more than 80% of the spermathecae completely filled. The rate of induced sterility in females was 89.67% due to a dose rate decrease of the radiation source. Moreover, sterile males were able to compete successfully with untreated fertile males for untreated females in walk-in field cages. This study confirmed that the flies were still competitive and stressed the importance of regularly checking the radiation source parameters. |
