Biology of Triatoma klugi Carcavallo, Jurberg, Lent & Galväo 2001 (Heteroptera: Reduviidae) under laboratory conditions: effects of eistinct blood sources and susceptibility to Trypanosoma cruzi and Trypanosoma rangeli
Mem. Inst. Oswaldo Cruz
; 97(4): 583-587, June 2002. tab, graf
Article
in English
| LILACS
| ID: lil-314532
Responsible library:
BR1.1
ABSTRACT
The life cycle of Triatoma klugi Carcavallo, Jurberg, Lent & Galväo 2001 was compared under laboratory conditions using two groups of the F1 generation obtained from field-collected bugs. Among the 100 nymphs weekly fed on mice (Group A) or chicken (Group B), 77 percent of Group A and 67 percent of Group B reached the adult stage, and the mean time from the first nymphal stage to adult was 190.08 ± 28.31 days and 221.23 ± 40.50, respectively. The average span in days for each stage per group and the number of blood meals required for each stage were also evaluated. The overall mortality rate was 23 percent and 33 percent for Groups A and B, respectively. The mean number of eggs laid per month in a three-month period was of 56.20, 51.70 and 73.20 for Group A, and 64.50, 53.50 and 38.71 for Group B. Despite the blood source, comparative analysis revealed no statistically significant differences in the life cycle of T. klugi under laboratory conditions. Infection rates over 60 percent were observed for both Trypanosoma cruzi strains tested. Even revealing high infection rates of the hemolymph by T. rangeli strains, T. klugi revealed no salivary gland infections and was not able to transmit the parasite
Full text:
Available
Collection:
International databases
Database:
LILACS
Main subject:
Triatoma
/
Feeding Behavior
/
Life Cycle Stages
Type of study:
Prognostic study
Limits:
Animals
Language:
English
Journal:
Mem. Inst. Oswaldo Cruz
Journal subject:
Tropical Medicine
/
Parasitology
Year:
2002
Document type:
Article
Affiliation country:
Brazil
Institution/Affiliation country:
Universidade Federal de Santa Catarina/BR