Ecology of the free-living stages of goat gastrointestinal nematodes during spring-summer contamination in Salta province, Argentina

Autores
Olmos, Leandro Hipolito; Diaz, Juan Pablo; Ruiz, Alvaro Francisco; Enriquez, Carlos Alberto; Copa, Griselda Noemi; Tolaba Carrillos, Mariana Gisela; Suarez, Victor Humberto
Año de publicación
2026
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
In small ruminants such as goats, gastrointestinal nematodes (GINs) are a major cause of disease, production loss and mortality. This study aimed to describe the dynamics of development and survival in both fecal matter and grass of the free-living stages of goat GINs during the rainy season in Salta Province, Argentina. Four experimental fecal contaminations were conducted on plots between October 2022 and April 2023, representing different seasonal conditions. Larval development time and rate, time of L3 larvae persistence in fecal matter and grass, and migration to pasture, as well as the relationships of these parameters with environmental variables were evaluated. Significant differences were observed in all parasitological parameters between experimental plots. Development time ranged from 8 to 50 days, with slower development under early spring conditions, and was negatively correlated with humidity and accumulated rainfall. The development rate varied between 3.9% and 12.3% and showed a positive association with maximum temperature. The time of L3 larvae persistence time in fecal matter differed markedly between periods, with the longest survival observed in April, as confirmed by Kaplan–Meier analysis. The migration of larvae to pasture occurred between 4 and 12 days after detection in feces and was strongly influenced by rainfall and fecal dry matter. The time of L3 larvae persistence in pasture ranged from 30 to 53 days, with higher survival during early periods. The genus Trichostrongylus exhibited greater ecological plasticity and persistence than Haemonchus and Teladorsagia. These findings highlight the strong influence of environmental conditions on GIN epidemiology and provide the first local evidence describing the refuge dynamics of GINs in goats in Argentina. This information may contribute to the design of more effective and sustainable parasite control strategies.
Instituto de Investigación Animal del Chaco Semiárido
Fil: Olmos, Leandro Hipolito. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Investigación Animal del Chaco Semiárido. Área de Investigación en Salud Animal; Argentina
Fil: Olmos, Leandro Hipolito. Universidad Católica de Salta. Facultad de Ciencias Agrarias y Veterinarias; Argentina
Fil: Diaz, Juan Pablo. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Investigación Animal del Chaco Semiárido. Área de Investigación en Salud Animal; Argentina
Fil: Ruiz, Alvaro Francisco. Universidad Católica de Salta. Facultad de Ciencias Agrarias y Veterinarias; Argentina
Fil: Enriquez, Carlos Alberto. Universidad Nacional de Salta. Facultad de Ciencias Naturales. Cátedra de Química Biológica; Argentina
Fil: Copa, Griselda Noemi. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Investigación Animal del Chaco Semiárido. Área de Investigación en Salud Animal; Argentina
Fil: Copa, Griselda Noemi. Universidad Nacional de Salta. Facultad de Ciencias Naturales; Argentina
Fil: Tolaba Carrillos, G.M. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Suarez, Victor Humberto. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Salta; Argentina
Fuente
Veterinary Parasitology: Regional Studies and Reports 71 : 101491. (June 2026)
Materia
Caprinos
Nematodos
Enfermedades de los Animales
Primavera
Verano
Salta
Goats
Nematodes
Animal Diseases
Spring
Summer
Nematodos Gastrointestinales
Gastrointestinal Nematodes
Nivel de accesibilidad
acceso restringido
Condiciones de uso
http://creativecommons.org/licenses/by-nc-sa/4.0/
Repositorio
INTA Digital (INTA)
Institución
Instituto Nacional de Tecnología Agropecuaria
OAI Identificador
oai:localhost:20.500.12123/27858
Acceder
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oai_identifier_str oai:localhost:20.500.12123/27858
network_acronym_str INTADig
repository_id_str l
network_name_str INTA Digital (INTA)
spelling Ecology of the free-living stages of goat gastrointestinal nematodes during spring-summer contamination in Salta province, ArgentinaOlmos, Leandro HipolitoDiaz, Juan PabloRuiz, Alvaro FranciscoEnriquez, Carlos AlbertoCopa, Griselda NoemiTolaba Carrillos, Mariana GiselaSuarez, Victor HumbertoCaprinosNematodosEnfermedades de los AnimalesPrimaveraVeranoSaltaGoatsNematodesAnimal DiseasesSpringSummerNematodos GastrointestinalesGastrointestinal NematodesIn small ruminants such as goats, gastrointestinal nematodes (GINs) are a major cause of disease, production loss and mortality. This study aimed to describe the dynamics of development and survival in both fecal matter and grass of the free-living stages of goat GINs during the rainy season in Salta Province, Argentina. Four experimental fecal contaminations were conducted on plots between October 2022 and April 2023, representing different seasonal conditions. Larval development time and rate, time of L3 larvae persistence in fecal matter and grass, and migration to pasture, as well as the relationships of these parameters with environmental variables were evaluated. Significant differences were observed in all parasitological parameters between experimental plots. Development time ranged from 8 to 50 days, with slower development under early spring conditions, and was negatively correlated with humidity and accumulated rainfall. The development rate varied between 3.9% and 12.3% and showed a positive association with maximum temperature. The time of L3 larvae persistence time in fecal matter differed markedly between periods, with the longest survival observed in April, as confirmed by Kaplan–Meier analysis. The migration of larvae to pasture occurred between 4 and 12 days after detection in feces and was strongly influenced by rainfall and fecal dry matter. The time of L3 larvae persistence in pasture ranged from 30 to 53 days, with higher survival during early periods. The genus Trichostrongylus exhibited greater ecological plasticity and persistence than Haemonchus and Teladorsagia. These findings highlight the strong influence of environmental conditions on GIN epidemiology and provide the first local evidence describing the refuge dynamics of GINs in goats in Argentina. This information may contribute to the design of more effective and sustainable parasite control strategies.Instituto de Investigación Animal del Chaco SemiáridoFil: Olmos, Leandro Hipolito. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Investigación Animal del Chaco Semiárido. Área de Investigación en Salud Animal; ArgentinaFil: Olmos, Leandro Hipolito. Universidad Católica de Salta. Facultad de Ciencias Agrarias y Veterinarias; ArgentinaFil: Diaz, Juan Pablo. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Investigación Animal del Chaco Semiárido. Área de Investigación en Salud Animal; ArgentinaFil: Ruiz, Alvaro Francisco. Universidad Católica de Salta. Facultad de Ciencias Agrarias y Veterinarias; ArgentinaFil: Enriquez, Carlos Alberto. Universidad Nacional de Salta. Facultad de Ciencias Naturales. Cátedra de Química Biológica; ArgentinaFil: Copa, Griselda Noemi. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Investigación Animal del Chaco Semiárido. Área de Investigación en Salud Animal; ArgentinaFil: Copa, Griselda Noemi. Universidad Nacional de Salta. Facultad de Ciencias Naturales; ArgentinaFil: Tolaba Carrillos, G.M. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Suarez, Victor Humberto. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Salta; ArgentinaElsevier2026-09-18T15:02:50Z2026-09-18T15:02:50Z2026-06info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfhttp://hdl.handle.net/20.500.12123/27858https://www.sciencedirect.com/science/article/abs/pii/S24059390260007172405-9390https://doi.org/10.1016/j.vprsr.2026.101491Veterinary Parasitology: Regional Studies and Reports 71 : 101491. (June 2026)reponame:INTA Digital (INTA)instname:Instituto Nacional de Tecnología AgropecuariaengSalta .......... (province) (World, South America, Argentina)1001514info:eu-repo/semantics/restrictedAccesshttp://creativecommons.org/licenses/by-nc-sa/4.0/Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)2026-10-01T10:25:49Zoai:localhost:20.500.12123/27858instacron:INTAInstitucionalhttp://repositorio.inta.gob.ar/Organismo científico-tecnológicoNo correspondehttp://repositorio.inta.gob.ar/oai/requesttripaldi.nicolas@inta.gob.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:l2026-10-01 10:25:50.795INTA Digital (INTA) - Instituto Nacional de Tecnología Agropecuariafalse
dc.title.none.fl_str_mv Ecology of the free-living stages of goat gastrointestinal nematodes during spring-summer contamination in Salta province, Argentina
title Ecology of the free-living stages of goat gastrointestinal nematodes during spring-summer contamination in Salta province, Argentina
spellingShingle Ecology of the free-living stages of goat gastrointestinal nematodes during spring-summer contamination in Salta province, Argentina
Olmos, Leandro Hipolito
Caprinos
Nematodos
Enfermedades de los Animales
Primavera
Verano
Salta
Goats
Nematodes
Animal Diseases
Spring
Summer
Nematodos Gastrointestinales
Gastrointestinal Nematodes
title_short Ecology of the free-living stages of goat gastrointestinal nematodes during spring-summer contamination in Salta province, Argentina
title_full Ecology of the free-living stages of goat gastrointestinal nematodes during spring-summer contamination in Salta province, Argentina
title_fullStr Ecology of the free-living stages of goat gastrointestinal nematodes during spring-summer contamination in Salta province, Argentina
title_full_unstemmed Ecology of the free-living stages of goat gastrointestinal nematodes during spring-summer contamination in Salta province, Argentina
title_sort Ecology of the free-living stages of goat gastrointestinal nematodes during spring-summer contamination in Salta province, Argentina
dc.creator.none.fl_str_mv Olmos, Leandro Hipolito
Diaz, Juan Pablo
Ruiz, Alvaro Francisco
Enriquez, Carlos Alberto
Copa, Griselda Noemi
Tolaba Carrillos, Mariana Gisela
Suarez, Victor Humberto
author Olmos, Leandro Hipolito
author_facet Olmos, Leandro Hipolito
Diaz, Juan Pablo
Ruiz, Alvaro Francisco
Enriquez, Carlos Alberto
Copa, Griselda Noemi
Tolaba Carrillos, Mariana Gisela
Suarez, Victor Humberto
author_role author
author2 Diaz, Juan Pablo
Ruiz, Alvaro Francisco
Enriquez, Carlos Alberto
Copa, Griselda Noemi
Tolaba Carrillos, Mariana Gisela
Suarez, Victor Humberto
author2_role author
author
author
author
author
author
dc.subject.none.fl_str_mv Caprinos
Nematodos
Enfermedades de los Animales
Primavera
Verano
Salta
Goats
Nematodes
Animal Diseases
Spring
Summer
Nematodos Gastrointestinales
Gastrointestinal Nematodes
topic Caprinos
Nematodos
Enfermedades de los Animales
Primavera
Verano
Salta
Goats
Nematodes
Animal Diseases
Spring
Summer
Nematodos Gastrointestinales
Gastrointestinal Nematodes
dc.description.none.fl_txt_mv In small ruminants such as goats, gastrointestinal nematodes (GINs) are a major cause of disease, production loss and mortality. This study aimed to describe the dynamics of development and survival in both fecal matter and grass of the free-living stages of goat GINs during the rainy season in Salta Province, Argentina. Four experimental fecal contaminations were conducted on plots between October 2022 and April 2023, representing different seasonal conditions. Larval development time and rate, time of L3 larvae persistence in fecal matter and grass, and migration to pasture, as well as the relationships of these parameters with environmental variables were evaluated. Significant differences were observed in all parasitological parameters between experimental plots. Development time ranged from 8 to 50 days, with slower development under early spring conditions, and was negatively correlated with humidity and accumulated rainfall. The development rate varied between 3.9% and 12.3% and showed a positive association with maximum temperature. The time of L3 larvae persistence time in fecal matter differed markedly between periods, with the longest survival observed in April, as confirmed by Kaplan–Meier analysis. The migration of larvae to pasture occurred between 4 and 12 days after detection in feces and was strongly influenced by rainfall and fecal dry matter. The time of L3 larvae persistence in pasture ranged from 30 to 53 days, with higher survival during early periods. The genus Trichostrongylus exhibited greater ecological plasticity and persistence than Haemonchus and Teladorsagia. These findings highlight the strong influence of environmental conditions on GIN epidemiology and provide the first local evidence describing the refuge dynamics of GINs in goats in Argentina. This information may contribute to the design of more effective and sustainable parasite control strategies.
Instituto de Investigación Animal del Chaco Semiárido
Fil: Olmos, Leandro Hipolito. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Investigación Animal del Chaco Semiárido. Área de Investigación en Salud Animal; Argentina
Fil: Olmos, Leandro Hipolito. Universidad Católica de Salta. Facultad de Ciencias Agrarias y Veterinarias; Argentina
Fil: Diaz, Juan Pablo. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Investigación Animal del Chaco Semiárido. Área de Investigación en Salud Animal; Argentina
Fil: Ruiz, Alvaro Francisco. Universidad Católica de Salta. Facultad de Ciencias Agrarias y Veterinarias; Argentina
Fil: Enriquez, Carlos Alberto. Universidad Nacional de Salta. Facultad de Ciencias Naturales. Cátedra de Química Biológica; Argentina
Fil: Copa, Griselda Noemi. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Investigación Animal del Chaco Semiárido. Área de Investigación en Salud Animal; Argentina
Fil: Copa, Griselda Noemi. Universidad Nacional de Salta. Facultad de Ciencias Naturales; Argentina
Fil: Tolaba Carrillos, G.M. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Suarez, Victor Humberto. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Salta; Argentina
description In small ruminants such as goats, gastrointestinal nematodes (GINs) are a major cause of disease, production loss and mortality. This study aimed to describe the dynamics of development and survival in both fecal matter and grass of the free-living stages of goat GINs during the rainy season in Salta Province, Argentina. Four experimental fecal contaminations were conducted on plots between October 2022 and April 2023, representing different seasonal conditions. Larval development time and rate, time of L3 larvae persistence in fecal matter and grass, and migration to pasture, as well as the relationships of these parameters with environmental variables were evaluated. Significant differences were observed in all parasitological parameters between experimental plots. Development time ranged from 8 to 50 days, with slower development under early spring conditions, and was negatively correlated with humidity and accumulated rainfall. The development rate varied between 3.9% and 12.3% and showed a positive association with maximum temperature. The time of L3 larvae persistence time in fecal matter differed markedly between periods, with the longest survival observed in April, as confirmed by Kaplan–Meier analysis. The migration of larvae to pasture occurred between 4 and 12 days after detection in feces and was strongly influenced by rainfall and fecal dry matter. The time of L3 larvae persistence in pasture ranged from 30 to 53 days, with higher survival during early periods. The genus Trichostrongylus exhibited greater ecological plasticity and persistence than Haemonchus and Teladorsagia. These findings highlight the strong influence of environmental conditions on GIN epidemiology and provide the first local evidence describing the refuge dynamics of GINs in goats in Argentina. This information may contribute to the design of more effective and sustainable parasite control strategies.
publishDate 2026
dc.date.none.fl_str_mv 2026-09-18T15:02:50Z
2026-09-18T15:02:50Z
2026-06
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/20.500.12123/27858
https://www.sciencedirect.com/science/article/abs/pii/S2405939026000717
2405-9390
https://doi.org/10.1016/j.vprsr.2026.101491
url http://hdl.handle.net/20.500.12123/27858
https://www.sciencedirect.com/science/article/abs/pii/S2405939026000717
https://doi.org/10.1016/j.vprsr.2026.101491
identifier_str_mv 2405-9390
dc.language.none.fl_str_mv eng
language eng
dc.rights.none.fl_str_mv info:eu-repo/semantics/restrictedAccess
http://creativecommons.org/licenses/by-nc-sa/4.0/
Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)
eu_rights_str_mv restrictedAccess
rights_invalid_str_mv http://creativecommons.org/licenses/by-nc-sa/4.0/
Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)
dc.format.none.fl_str_mv application/pdf
dc.coverage.none.fl_str_mv Salta .......... (province) (World, South America, Argentina)
1001514
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
dc.source.none.fl_str_mv Veterinary Parasitology: Regional Studies and Reports 71 : 101491. (June 2026)
reponame:INTA Digital (INTA)
instname:Instituto Nacional de Tecnología Agropecuaria
reponame_str INTA Digital (INTA)
collection INTA Digital (INTA)
instname_str Instituto Nacional de Tecnología Agropecuaria
repository.name.fl_str_mv INTA Digital (INTA) - Instituto Nacional de Tecnología Agropecuaria
repository.mail.fl_str_mv tripaldi.nicolas@inta.gob.ar
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score 13.365483

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