Abstract
In this study, the effects of relaxed mass-rearing conditions on Anastrepha obliqua (Macquart) production and quality were determined. Relaxed rearing conditions were defined by a reduction in the density of adult flies, from 80,000 to 60,000 flies per mass-rearing cage, and a reduction in the density of larvae, from 6.18 to 3.70 eggs/g of diet. In the parental generation, flies reared under relaxed conditions exhibited significant and a few non-significant changes - increased daily fecundity from 37 to 42 eggs per female, larval recovery from 80 to 91%, larval weight from 18.5 to 19.5 mg, pupation at 24h from 92 to 96%, pupal weight from 13.5 to 14.3 mg, adult emergence from 92 to 94% and percentage of fliers from 89 to 90%. During the following 12 generations, non-significant differences were observed, but comparisons between relaxed and non-relaxed colonies were significant. The sexual competitiveness of males produced under relaxed conditions was similar to that of wild males.
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Orozco-Dávila, D., Artiaga-López, T., Hernández, M.D.R. et al. Anastrepha obliqua (Diptera: Tephritidae) mass-rearing: effect of relaxed colony management. Int J Trop Insect Sci 34 (Suppl 1), S19–S27 (2014). https://doi.org/10.1017/S1742758414000058
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DOI: https://doi.org/10.1017/S1742758414000058