Suspected primary photosensitisation in cattle grazing red clover (Trifolium pratense)

Autores
Tettamanti, Agustina; Livio, Juan; Micheloud, Juan Francisco; Livio, Rubén; Poo, Juan Ignacio; Lauro, Adriana Araceli; Scioli, Maria Valeria; Canton, German Jose; Garcia, Juan Agustin
Año de publicación
2025
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Case history: In April and June of 2024, two outbreaks of photosensitisation occurred in a herd of 354 beef cows and calves in Buenos Aires province, Argentina. Both outbreaks occurred in the same paddock, where red clover (Trifolium pratense) was the dominant pasture species, combined with tall fescue (Schedonorus arundinaceus, previously Festuca arundinacea), white clover (T. repens), bird’s foot trefoil (Lotus corniculatus), and perennial ryegrass (Lolium perenne). Clinical findings : Signs of head tilt, restlessness, tail swishing, and searching behaviour for shade and water were first observed 15–19 days after grazing, with skin necrosis and eyelid inflammation visible on closer examination. A cumulative incidence of 5.6% and 10.7% was recorded in each outbreak with all animals recovering 5–10 days after removal to a paddock composed of wheatgrass (Triticum aestivum) and Festuca spp. Laboratory and pathological: Following the second outbreak, nine serum samples and seven ear skin biopsies were collected from affected animals for assessment of hepatic enzyme activities and histopathology, along with a pasture sample to assess the spore count for Pithomyces chartarum. Serum activity levels of glutamic oxaloacetic transaminase (GOT) and gamma-glutamyl transferase (GGT) were normal in nine and four affected cows, with slightly elevated GGT activities in the remaining five cows. Activities of all other liver enzymes were within normal limits and there was no sign of icterus. Histological examination of the ear skin biopsies revealed necrotising dermatitis and epidermal hyperplasia compatible with photosensitisation. The spore count for P. chartarum was low (11,250 spores/g fresh pasture). Diagnosis: The epidemiological data, clinical presentation and clinical-pathology findings suggest that these cows were affected by primary photosensitisation most probably due to the ingestion of T. pratense. Clinical relevance: Identifying a plant species as a cause of primary photosensitisation is difficult, and the aetiological agent often remains unidentified. The association between consumption of a sward containing T. pratense and the photosensitisation reported in this study suggests that this plant species may be acting as a primary cause of photosensitisation in cattle. This study highlights the need for further research to identify toxic elements in T. pratense and their effects on livestock.
EEA Balcarce
Fil: Tettamanti, A. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Balcarce. Instituto de Innovación para la Producción Agropecuaria y el Desarrollo Sostenible; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Innovación para la Producción Agropecuaria y el Desarrollo Sostenible; Argentina
Fil: Livio, Juan. Actividad Privada; Argentina
Fil: Micheloud, J.F. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Investigación Animal del Chaco Semiárido; Argentina
Fil: Micheloud, J.F. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Micheloud, J.F. Universidad Católica de Salta. Facultad de Ciencias Agrarias y Veterinarias; Argentina
Fil: Millan Rustichelli, G. Actividad Privada; Argentina
Fil: Livio, R. Actividad Privada; Argentina
Fil: Poo, Juan Ignacio. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Balcarce. Instituto de Innovación para la Producción Agropecuaria y el Desarrollo Sostenible; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Innovación para la Producción Agropecuaria y el Desarrollo Sostenible; Argentina
Fil: Lauro, Adriana. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Balcarce. Instituto de Innovación para la Producción Agropecuaria y el Desarrollo Sostenible; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Innovación para la Producción Agropecuaria y el Desarrollo Sostenible; Argentina
Fil: Scioli, Valeria. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Balcarce. Instituto de Innovación para la Producción Agropecuaria y el Desarrollo Sostenible; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Innovación para la Producción Agropecuaria y el Desarrollo Sostenible; Argentina
Fil: Cantón, Germán José. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Balcarce. Instituto de Innovación para la Producción Agropecuaria y el Desarrollo Sostenible; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Innovación para la Producción Agropecuaria y el Desarrollo Sostenible; Argentina
Fil: García, Juan Agustín. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Balcarce. Instituto de Innovación para la Producción Agropecuaria y el Desarrollo Sostenible; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Innovación para la Producción Agropecuaria y el Desarrollo Sostenible; Argentina
Fuente
New Zealand Veterinary Journal : 1-6. (Published online: 02 Apr 2025)
Materia
Rumiante
Plantas Tóxicas
Trifolium
Fotosensibilidad
Emfermedad de la Piel
Ruminants
Poisonous Plants
Photosensitivity
Dermatitis
Cattle
Ganado Bovino
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:20.500.12123/21883

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oai_identifier_str oai:localhost:20.500.12123/21883
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network_name_str INTA Digital (INTA)
spelling Suspected primary photosensitisation in cattle grazing red clover (Trifolium pratense)Tettamanti, AgustinaLivio, JuanMicheloud, Juan FranciscoLivio, RubénPoo, Juan IgnacioLauro, Adriana AraceliScioli, Maria ValeriaCanton, German JoseGarcia, Juan AgustinRumiantePlantas TóxicasTrifoliumFotosensibilidadEmfermedad de la PielRuminantsPoisonous PlantsPhotosensitivityDermatitisCattleGanado BovinoCase history: In April and June of 2024, two outbreaks of photosensitisation occurred in a herd of 354 beef cows and calves in Buenos Aires province, Argentina. Both outbreaks occurred in the same paddock, where red clover (Trifolium pratense) was the dominant pasture species, combined with tall fescue (Schedonorus arundinaceus, previously Festuca arundinacea), white clover (T. repens), bird’s foot trefoil (Lotus corniculatus), and perennial ryegrass (Lolium perenne). Clinical findings : Signs of head tilt, restlessness, tail swishing, and searching behaviour for shade and water were first observed 15–19 days after grazing, with skin necrosis and eyelid inflammation visible on closer examination. A cumulative incidence of 5.6% and 10.7% was recorded in each outbreak with all animals recovering 5–10 days after removal to a paddock composed of wheatgrass (Triticum aestivum) and Festuca spp. Laboratory and pathological: Following the second outbreak, nine serum samples and seven ear skin biopsies were collected from affected animals for assessment of hepatic enzyme activities and histopathology, along with a pasture sample to assess the spore count for Pithomyces chartarum. Serum activity levels of glutamic oxaloacetic transaminase (GOT) and gamma-glutamyl transferase (GGT) were normal in nine and four affected cows, with slightly elevated GGT activities in the remaining five cows. Activities of all other liver enzymes were within normal limits and there was no sign of icterus. Histological examination of the ear skin biopsies revealed necrotising dermatitis and epidermal hyperplasia compatible with photosensitisation. The spore count for P. chartarum was low (11,250 spores/g fresh pasture). Diagnosis: The epidemiological data, clinical presentation and clinical-pathology findings suggest that these cows were affected by primary photosensitisation most probably due to the ingestion of T. pratense. Clinical relevance: Identifying a plant species as a cause of primary photosensitisation is difficult, and the aetiological agent often remains unidentified. The association between consumption of a sward containing T. pratense and the photosensitisation reported in this study suggests that this plant species may be acting as a primary cause of photosensitisation in cattle. This study highlights the need for further research to identify toxic elements in T. pratense and their effects on livestock.EEA BalcarceFil: Tettamanti, A. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Balcarce. Instituto de Innovación para la Producción Agropecuaria y el Desarrollo Sostenible; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Innovación para la Producción Agropecuaria y el Desarrollo Sostenible; ArgentinaFil: Livio, Juan. Actividad Privada; ArgentinaFil: Micheloud, J.F. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Investigación Animal del Chaco Semiárido; ArgentinaFil: Micheloud, J.F. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Micheloud, J.F. Universidad Católica de Salta. Facultad de Ciencias Agrarias y Veterinarias; ArgentinaFil: Millan Rustichelli, G. Actividad Privada; ArgentinaFil: Livio, R. Actividad Privada; ArgentinaFil: Poo, Juan Ignacio. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Balcarce. Instituto de Innovación para la Producción Agropecuaria y el Desarrollo Sostenible; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Innovación para la Producción Agropecuaria y el Desarrollo Sostenible; ArgentinaFil: Lauro, Adriana. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Balcarce. Instituto de Innovación para la Producción Agropecuaria y el Desarrollo Sostenible; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Innovación para la Producción Agropecuaria y el Desarrollo Sostenible; ArgentinaFil: Scioli, Valeria. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Balcarce. Instituto de Innovación para la Producción Agropecuaria y el Desarrollo Sostenible; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Innovación para la Producción Agropecuaria y el Desarrollo Sostenible; ArgentinaFil: Cantón, Germán José. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Balcarce. Instituto de Innovación para la Producción Agropecuaria y el Desarrollo Sostenible; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Innovación para la Producción Agropecuaria y el Desarrollo Sostenible; ArgentinaFil: García, Juan Agustín. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Balcarce. Instituto de Innovación para la Producción Agropecuaria y el Desarrollo Sostenible; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Innovación para la Producción Agropecuaria y el Desarrollo Sostenible; ArgentinaTaylor and Francis2025-04-03T13:19:20Z2025-04-03T13:19:20Z2025-04-02info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfhttp://hdl.handle.net/20.500.12123/21883https://www.tandfonline.com/doi/full/10.1080/00480169.2025.24791990048-0169 (print)1176-0710 (online)New Zealand Veterinary Journal : 1-6. (Published online: 02 Apr 2025)reponame:INTA Digital (INTA)instname:Instituto Nacional de Tecnología Agropecuariaenginfo: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)2025-10-23T11:19:28Zoai:localhost:20.500.12123/21883instacron:INTAInstitucionalhttp://repositorio.inta.gob.ar/Organismo científico-tecnológicoNo correspondehttp://repositorio.inta.gob.ar/oai/requesttripaldi.nicolas@inta.gob.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:l2025-10-23 11:19:28.772INTA Digital (INTA) - Instituto Nacional de Tecnología Agropecuariafalse
dc.title.none.fl_str_mv Suspected primary photosensitisation in cattle grazing red clover (Trifolium pratense)
title Suspected primary photosensitisation in cattle grazing red clover (Trifolium pratense)
spellingShingle Suspected primary photosensitisation in cattle grazing red clover (Trifolium pratense)
Tettamanti, Agustina
Rumiante
Plantas Tóxicas
Trifolium
Fotosensibilidad
Emfermedad de la Piel
Ruminants
Poisonous Plants
Photosensitivity
Dermatitis
Cattle
Ganado Bovino
title_short Suspected primary photosensitisation in cattle grazing red clover (Trifolium pratense)
title_full Suspected primary photosensitisation in cattle grazing red clover (Trifolium pratense)
title_fullStr Suspected primary photosensitisation in cattle grazing red clover (Trifolium pratense)
title_full_unstemmed Suspected primary photosensitisation in cattle grazing red clover (Trifolium pratense)
title_sort Suspected primary photosensitisation in cattle grazing red clover (Trifolium pratense)
dc.creator.none.fl_str_mv Tettamanti, Agustina
Livio, Juan
Micheloud, Juan Francisco
Livio, Rubén
Poo, Juan Ignacio
Lauro, Adriana Araceli
Scioli, Maria Valeria
Canton, German Jose
Garcia, Juan Agustin
author Tettamanti, Agustina
author_facet Tettamanti, Agustina
Livio, Juan
Micheloud, Juan Francisco
Livio, Rubén
Poo, Juan Ignacio
Lauro, Adriana Araceli
Scioli, Maria Valeria
Canton, German Jose
Garcia, Juan Agustin
author_role author
author2 Livio, Juan
Micheloud, Juan Francisco
Livio, Rubén
Poo, Juan Ignacio
Lauro, Adriana Araceli
Scioli, Maria Valeria
Canton, German Jose
Garcia, Juan Agustin
author2_role author
author
author
author
author
author
author
author
dc.subject.none.fl_str_mv Rumiante
Plantas Tóxicas
Trifolium
Fotosensibilidad
Emfermedad de la Piel
Ruminants
Poisonous Plants
Photosensitivity
Dermatitis
Cattle
Ganado Bovino
topic Rumiante
Plantas Tóxicas
Trifolium
Fotosensibilidad
Emfermedad de la Piel
Ruminants
Poisonous Plants
Photosensitivity
Dermatitis
Cattle
Ganado Bovino
dc.description.none.fl_txt_mv Case history: In April and June of 2024, two outbreaks of photosensitisation occurred in a herd of 354 beef cows and calves in Buenos Aires province, Argentina. Both outbreaks occurred in the same paddock, where red clover (Trifolium pratense) was the dominant pasture species, combined with tall fescue (Schedonorus arundinaceus, previously Festuca arundinacea), white clover (T. repens), bird’s foot trefoil (Lotus corniculatus), and perennial ryegrass (Lolium perenne). Clinical findings : Signs of head tilt, restlessness, tail swishing, and searching behaviour for shade and water were first observed 15–19 days after grazing, with skin necrosis and eyelid inflammation visible on closer examination. A cumulative incidence of 5.6% and 10.7% was recorded in each outbreak with all animals recovering 5–10 days after removal to a paddock composed of wheatgrass (Triticum aestivum) and Festuca spp. Laboratory and pathological: Following the second outbreak, nine serum samples and seven ear skin biopsies were collected from affected animals for assessment of hepatic enzyme activities and histopathology, along with a pasture sample to assess the spore count for Pithomyces chartarum. Serum activity levels of glutamic oxaloacetic transaminase (GOT) and gamma-glutamyl transferase (GGT) were normal in nine and four affected cows, with slightly elevated GGT activities in the remaining five cows. Activities of all other liver enzymes were within normal limits and there was no sign of icterus. Histological examination of the ear skin biopsies revealed necrotising dermatitis and epidermal hyperplasia compatible with photosensitisation. The spore count for P. chartarum was low (11,250 spores/g fresh pasture). Diagnosis: The epidemiological data, clinical presentation and clinical-pathology findings suggest that these cows were affected by primary photosensitisation most probably due to the ingestion of T. pratense. Clinical relevance: Identifying a plant species as a cause of primary photosensitisation is difficult, and the aetiological agent often remains unidentified. The association between consumption of a sward containing T. pratense and the photosensitisation reported in this study suggests that this plant species may be acting as a primary cause of photosensitisation in cattle. This study highlights the need for further research to identify toxic elements in T. pratense and their effects on livestock.
EEA Balcarce
Fil: Tettamanti, A. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Balcarce. Instituto de Innovación para la Producción Agropecuaria y el Desarrollo Sostenible; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Innovación para la Producción Agropecuaria y el Desarrollo Sostenible; Argentina
Fil: Livio, Juan. Actividad Privada; Argentina
Fil: Micheloud, J.F. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Investigación Animal del Chaco Semiárido; Argentina
Fil: Micheloud, J.F. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Micheloud, J.F. Universidad Católica de Salta. Facultad de Ciencias Agrarias y Veterinarias; Argentina
Fil: Millan Rustichelli, G. Actividad Privada; Argentina
Fil: Livio, R. Actividad Privada; Argentina
Fil: Poo, Juan Ignacio. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Balcarce. Instituto de Innovación para la Producción Agropecuaria y el Desarrollo Sostenible; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Innovación para la Producción Agropecuaria y el Desarrollo Sostenible; Argentina
Fil: Lauro, Adriana. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Balcarce. Instituto de Innovación para la Producción Agropecuaria y el Desarrollo Sostenible; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Innovación para la Producción Agropecuaria y el Desarrollo Sostenible; Argentina
Fil: Scioli, Valeria. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Balcarce. Instituto de Innovación para la Producción Agropecuaria y el Desarrollo Sostenible; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Innovación para la Producción Agropecuaria y el Desarrollo Sostenible; Argentina
Fil: Cantón, Germán José. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Balcarce. Instituto de Innovación para la Producción Agropecuaria y el Desarrollo Sostenible; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Innovación para la Producción Agropecuaria y el Desarrollo Sostenible; Argentina
Fil: García, Juan Agustín. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Balcarce. Instituto de Innovación para la Producción Agropecuaria y el Desarrollo Sostenible; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Innovación para la Producción Agropecuaria y el Desarrollo Sostenible; Argentina
description Case history: In April and June of 2024, two outbreaks of photosensitisation occurred in a herd of 354 beef cows and calves in Buenos Aires province, Argentina. Both outbreaks occurred in the same paddock, where red clover (Trifolium pratense) was the dominant pasture species, combined with tall fescue (Schedonorus arundinaceus, previously Festuca arundinacea), white clover (T. repens), bird’s foot trefoil (Lotus corniculatus), and perennial ryegrass (Lolium perenne). Clinical findings : Signs of head tilt, restlessness, tail swishing, and searching behaviour for shade and water were first observed 15–19 days after grazing, with skin necrosis and eyelid inflammation visible on closer examination. A cumulative incidence of 5.6% and 10.7% was recorded in each outbreak with all animals recovering 5–10 days after removal to a paddock composed of wheatgrass (Triticum aestivum) and Festuca spp. Laboratory and pathological: Following the second outbreak, nine serum samples and seven ear skin biopsies were collected from affected animals for assessment of hepatic enzyme activities and histopathology, along with a pasture sample to assess the spore count for Pithomyces chartarum. Serum activity levels of glutamic oxaloacetic transaminase (GOT) and gamma-glutamyl transferase (GGT) were normal in nine and four affected cows, with slightly elevated GGT activities in the remaining five cows. Activities of all other liver enzymes were within normal limits and there was no sign of icterus. Histological examination of the ear skin biopsies revealed necrotising dermatitis and epidermal hyperplasia compatible with photosensitisation. The spore count for P. chartarum was low (11,250 spores/g fresh pasture). Diagnosis: The epidemiological data, clinical presentation and clinical-pathology findings suggest that these cows were affected by primary photosensitisation most probably due to the ingestion of T. pratense. Clinical relevance: Identifying a plant species as a cause of primary photosensitisation is difficult, and the aetiological agent often remains unidentified. The association between consumption of a sward containing T. pratense and the photosensitisation reported in this study suggests that this plant species may be acting as a primary cause of photosensitisation in cattle. This study highlights the need for further research to identify toxic elements in T. pratense and their effects on livestock.
publishDate 2025
dc.date.none.fl_str_mv 2025-04-03T13:19:20Z
2025-04-03T13:19:20Z
2025-04-02
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
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info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/20.500.12123/21883
https://www.tandfonline.com/doi/full/10.1080/00480169.2025.2479199
0048-0169 (print)
1176-0710 (online)
url http://hdl.handle.net/20.500.12123/21883
https://www.tandfonline.com/doi/full/10.1080/00480169.2025.2479199
identifier_str_mv 0048-0169 (print)
1176-0710 (online)
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.publisher.none.fl_str_mv Taylor and Francis
publisher.none.fl_str_mv Taylor and Francis
dc.source.none.fl_str_mv New Zealand Veterinary Journal : 1-6. (Published online: 02 Apr 2025)
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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