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Iheringia. Série Zoologia

Print version ISSN 0073-4721On-line version ISSN 1678-4766


CRESONI-PEREIRA, Carla  and  ZUCOLOTO, Fernando Sérgio. Influence of quantities of brewer yeast on the performance of Anastrepha obliqua wild females (Diptera, Tephritidae). Iheringia, Sér. Zool. [online]. 2001, n.91, pp.53-60. ISSN 0073-4721.

Using artificial solid diets, experiments were performed with Anastrepha obliqua (Macquart, 1835) wild females in order to verify the influence of different quantities of brewer yeast on the performance and compensation behavior to unbalanced diets ingestion. The observed parameters were egg production, ingestion, diet efficiency and survival in the reproductive phase. Results indicated that there was no compensatory ingestion to different quantities of yeast and that the diet with 12.5g of yeast provided the best performance. The absence of compensatory ingestion is discussed based on the yeast phagostimulation and on the costs involved in solid diets ingestion. The relation between the analyzed parameters and the protein quantities in the diet were discussed.

Keywords : Protein; feeding; West Indian; fruit fly.

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