Feeding and defaecation patterns in Triatoma sordida

Memórias do Instituto Oswaldo Cruz

Lb Crocco¹  Ss Catalá¹ 

[1] ,UNC FCEFN Cátedra de Biología CelularCórdoba,Argentina

关键词: Triatoma sordida;    feeding;    defaecation;    peridomestic;   

DOI  :  10.1590/S0074-02761996000400004

来源: SciELO

【 摘 要 】

Triatoma sordida is a peridomestic Triatominae that could play an important role in the transmission of Trypanosoma cruzi, although its vectorial competence is not well known. The aim of this work was to evaluate two aspects of the vectorial competence: the feeding behaviour and defaecation patterns, and to compare them with T. infestans. The feeding and defaecation patterns were studied in adults and fifth instar nymphs of T. sordida fed ad libitum on a restrained pigeon. The results showed how the blood meal size controls excretion behaviour. Blood intake and time to first defaecation showed a significant negative correlation. Adults and nymphs frequently defaecated during the blood meal, reaching the maximum frequency within the first 10 minutes.

【 授权许可】

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