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Memórias do Instituto Oswaldo Cruz
Fundação Oswaldo Cruz, Fiocruz
ISSN: 1678-8060
EISSN: 1678-8060
Vol. 108, No. 3, 2013, pp. 352-358
Bioline Code: oc13061
Full paper language: English
Document type: Research Article
Document available free of charge

Memórias do Instituto Oswaldo Cruz, Vol. 108, No. 3, 2013, pp. 352-358

 en New structures for goat corrals to control peridomestic populations of Triatoma infestans check for this species in other resources (Hemiptera: Reduviidae) in the Gran Chaco of Argentina
Gorla, David Eladio; Abrahan, Luciana; Hernández, María Laura; Porcasi, Ximena; Hrellac, Hugo Américo; Carriz, Hugo & Catalá, Silvia Susana

Abstract

Goat production is an important economic activity for rural communities in the Gran Chaco of Argentina. Goat corrals are important for the survival of peridomestic populations of Triatoma infestans check for this species in other resources . This study evaluated the impact of modifying the traditional structure of goat corrals on T. infestans populations and goat productivity in the region of Los Llanos (La Rioja). Thirty-nine experimental corrals were constructed and 57 traditional corrals were used as controls. We evaluated the infestations of the control and experimental corrals for five years following construction of the structures. The results showed that the new structures did not prevent the colonization, although it enhanced the detection of infestation at low densities of T. infestans. No significant difference was found in T. infestans population abundance between control and experimental corrals, probably because of the different detectability in the two types of structures, especially among the small nymphs. Although goat productivity average was higher in experimental than in control corrals, no significant difference was found because of high variability. The new structures can be used as a complement to promote the development of rural communities. Acceptability and adoption of the new corrals by the owners was high, as the enclosures offered better protection for the goats, increased growth of kids and facilitated herd handling.

Keywords
Chagas disease; Triatominae; Triatoma infestans; goat corral; vector control; productivity

 
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