Rearing of Triatoma infestans Klug (Het., Reduviidae) in the absence of a live host. II. Egg yolk as a diet supplement

The effect of the addition of egg yolk to a blood meal on the development of Triatoma infestans (Klug) was analysed. Egg yolk was added in different quantities to heparinized, citrated or defibrinated bovine blood, which was offered in an artificial feeder. Control groups were fed on either non-supp...

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Detalles Bibliográficos
Autores principales: Núñez, Josué Antonio, Insausti, Teresita Concepción, Lazzari, Claudio Ricardo
Publicado: 1996
Materias:
Bovinae
Reduviidae
Triatoma infestans
Acceso en línea:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_09312048_v120_n9_p541_Nunez
http://hdl.handle.net/20.500.12110/paper_09312048_v120_n9_p541_Nunez
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
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spelling paper:paper_09312048_v120_n9_p541_Nunez2023-06-08T15:52:56Z Rearing of Triatoma infestans Klug (Het., Reduviidae) in the absence of a live host. II. Egg yolk as a diet supplement Núñez, Josué Antonio Insausti, Teresita Concepción Lazzari, Claudio Ricardo Bovinae Reduviidae Triatoma infestans The effect of the addition of egg yolk to a blood meal on the development of Triatoma infestans (Klug) was analysed. Egg yolk was added in different quantities to heparinized, citrated or defibrinated bovine blood, which was offered in an artificial feeder. Control groups were fed on either non-supplemented blood or hen in vivo. Results indicated that the addition of egg yolk to a blood meal reduced the intermoult interval and the moult success increased when egg yolk was added to the diet. The effect was more dramatic for the less suitable diets, as follows: citrated blood > defibrinated blood > heparinized blood. The minimal and most effective concentration of egg yolk in the diet was 10% v/v. When the egg yolk was centrifuged in a density-gradient, fractions with different performance could be obtained; middleweight fractions, but not the heaviest or lightest ones reproduced the observed effects of the whole yolk at the corresponding concentration. Growth rate and moulting success showed to be differentially affected by the diets and the growth performance of in vivo-fed experimental groups could be completely reproduced by adding yolk to the blood diets offered in artificial feeders. Fil:Núñez, J.A. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Insausti, T.C. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Lazzari, C.R. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 1996 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_09312048_v120_n9_p541_Nunez http://hdl.handle.net/20.500.12110/paper_09312048_v120_n9_p541_Nunez
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic Bovinae
Reduviidae
Triatoma infestans
spellingShingle Bovinae
Reduviidae
Triatoma infestans
Núñez, Josué Antonio
Insausti, Teresita Concepción
Lazzari, Claudio Ricardo
Rearing of Triatoma infestans Klug (Het., Reduviidae) in the absence of a live host. II. Egg yolk as a diet supplement
topic_facet Bovinae
Reduviidae
Triatoma infestans
description The effect of the addition of egg yolk to a blood meal on the development of Triatoma infestans (Klug) was analysed. Egg yolk was added in different quantities to heparinized, citrated or defibrinated bovine blood, which was offered in an artificial feeder. Control groups were fed on either non-supplemented blood or hen in vivo. Results indicated that the addition of egg yolk to a blood meal reduced the intermoult interval and the moult success increased when egg yolk was added to the diet. The effect was more dramatic for the less suitable diets, as follows: citrated blood > defibrinated blood > heparinized blood. The minimal and most effective concentration of egg yolk in the diet was 10% v/v. When the egg yolk was centrifuged in a density-gradient, fractions with different performance could be obtained; middleweight fractions, but not the heaviest or lightest ones reproduced the observed effects of the whole yolk at the corresponding concentration. Growth rate and moulting success showed to be differentially affected by the diets and the growth performance of in vivo-fed experimental groups could be completely reproduced by adding yolk to the blood diets offered in artificial feeders.
author Núñez, Josué Antonio
Insausti, Teresita Concepción
Lazzari, Claudio Ricardo
author_facet Núñez, Josué Antonio
Insausti, Teresita Concepción
Lazzari, Claudio Ricardo
author_sort Núñez, Josué Antonio
title Rearing of Triatoma infestans Klug (Het., Reduviidae) in the absence of a live host. II. Egg yolk as a diet supplement
title_short Rearing of Triatoma infestans Klug (Het., Reduviidae) in the absence of a live host. II. Egg yolk as a diet supplement
title_full Rearing of Triatoma infestans Klug (Het., Reduviidae) in the absence of a live host. II. Egg yolk as a diet supplement
title_fullStr Rearing of Triatoma infestans Klug (Het., Reduviidae) in the absence of a live host. II. Egg yolk as a diet supplement
title_full_unstemmed Rearing of Triatoma infestans Klug (Het., Reduviidae) in the absence of a live host. II. Egg yolk as a diet supplement
title_sort rearing of triatoma infestans klug (het., reduviidae) in the absence of a live host. ii. egg yolk as a diet supplement
publishDate 1996
url https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_09312048_v120_n9_p541_Nunez
http://hdl.handle.net/20.500.12110/paper_09312048_v120_n9_p541_Nunez
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