Rearing of Triatoma infestans Klug (Het., Reduviidae) in the absence of a live host. 1. Some factors affecting the artificial feeding
1990
Nunez, J.A. (Universidad de Buenos Aires (Argentina). Dept. de Biologia. Facultad de Cs. Exactas y Naturales) | Lazzari, C.R.
German. The gorging response of 3rd-instar nymphs of the vector of Chagas' disease Triatoma infestans Klug to different diets was analysed using an artificial feeder which allows one to feed a great number of buds simultaneously. Citrated blood was more acceptable than heparinated blood, either stored at 4 degrees C or at minus 20 degrees C. Freezing of blood at minus 20 degrees C and their subsequent haemolysis did not affect the intake of citrated blood when it was defrosted immediately before the experiment, but in fact when this occurred 36 hs before. The addition of mice odours to the artificial feeder did not improve the reaction of the bugs to the food it offer. Saline solutions without phagostimulants proved to evoke gorging
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