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The total number of ovipositions, the total average weight of the egg-masses, the average weight of the egg-masses per female and the viability of eggs for all situations are represented on the Table. Queiroz and Milward-de-Azevedo observed that oviposition started on the 5th day post-emergence and the primary peak occurred on the 6th day 0. This fact seems to confirm that C. Cunha-e-Silva , working with Cochliomyia macellaria Fabr. The food was renewed daily. J Chem Ecol 12 : Onderst J Vet Res It was ascertained that the increase in the proportion of females, resulted in higher weight and greater number of ovipositions and lenghtening of the period of oviposition, leads to a decrease in their lifespan. For situations I-V the length of egg-laying period was 24, 17, 18, 23, 32 days, respectively Figs

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