Journal
INTERNATIONAL JOURNAL OF TROPICAL INSECT SCIENCE
Volume 34, Issue -, Pages S19-S27Publisher
SPRINGER INTERNATIONAL PUBLISHING AG
DOI: 10.1017/S1742758414000058
Keywords
Anastrepha obliqua; Tephritidae; mass-rearing; relaxed colony management; Mexico
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Funding
- FAO/IAEA Programme on Nuclear Techniques in Food and Agriculture [13023/R0.2005-2010]
- Campana Nacional Contra Moscas de la Fruta, Programa Moscamed-Moscafrut (SAGARPA - SENASICA)
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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 24 h 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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