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
- Institución
- Instituto Nacional de Tecnología Agropecuaria
- OAI Identificador
- oai:localhost:20.500.12123/21883
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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 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/20.500.12123/21883 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 |
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