Astylus atromaculatus (pollen beetle) gastrointestinal disease experimentally reproduced in sheep
Intoxication of sheep and cattle by Astylus atromaculatus recently occurred in Uruguay and Argentina in association with severe drought. Although the disease was experimentally reproduced in sheep in the 1970s, there is limited information on clinical and pathologic findings of sheep experimentally...
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| Format: | Artículo |
| Language: | Inglés |
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SAGE Publications
2025
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| Subjects: | |
| Online Access: | http://hdl.handle.net/20.500.12123/21257 https://journals.sagepub.com/doi/10.1177/03009858241309394 https://doi.org/10.1177/03009858241309394 |
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| author | García y Santos, Carmen Garcia, Juan Agustin Dutra, Fernando Livio, Juan Corro, Ana Cecilia Canton, German Jose Escalona, Jorge Capelli, Alejandro Matto, Carolina Giannitti, Federico Uzal, Francisco |
| author_browse | Canton, German Jose Capelli, Alejandro Corro, Ana Cecilia Dutra, Fernando Escalona, Jorge Garcia, Juan Agustin García y Santos, Carmen Giannitti, Federico Livio, Juan Matto, Carolina Uzal, Francisco |
| author_facet | García y Santos, Carmen Garcia, Juan Agustin Dutra, Fernando Livio, Juan Corro, Ana Cecilia Canton, German Jose Escalona, Jorge Capelli, Alejandro Matto, Carolina Giannitti, Federico Uzal, Francisco |
| author_sort | García y Santos, Carmen |
| collection | INTA Digital |
| description | Intoxication of sheep and cattle by Astylus atromaculatus recently occurred in Uruguay and Argentina in association with severe drought. Although the disease was experimentally reproduced in sheep in the 1970s, there is limited information on clinical and pathologic findings of sheep experimentally intoxicated by this beetle. Here, we described the clinical, gross, and microscopic findings in 3 sheep orally dosed with A. atromaculatus (treatment group, TG) and in 2 control sheep (control group, CG) dosed with distilled water. Anorexia, lethargy, ruminal stasis, reluctance to move, prolonged recumbency, and bruxism were observed in the TG but not the CG sheep. Gross postmortem lesions were only observed in TG sheep and included fibrinonecrotizing enteritis affecting the duodenum, jejunum, and ileum, and multifocal hemorrhages in rumen, omasum, and abomasum. Microscopically, all 3 TG animals had multifocal necrosis in the small intestine; the lesions were most severe in the jejunum. Multifocal necrosis was seen in the mucosa of the rumen, omasum, and abomasum. No significant gross or microscopic abnormalities were observed in the 2 CG sheep. The study supports the role of A. atromaculatus in acute, fatal gastrointestinal disease like that previously described in experimental and spontaneous cases in sheep. |
| format | Artículo |
| id | INTA21257 |
| institution | Instituto Nacional de Tecnología Agropecuaria (INTA -Argentina) |
| language | Inglés |
| publishDate | 2025 |
| publishDateRange | 2025 |
| publishDateSort | 2025 |
| publisher | SAGE Publications |
| publisherStr | SAGE Publications |
| record_format | dspace |
| spelling | INTA212572025-02-14T10:33:47Z Astylus atromaculatus (pollen beetle) gastrointestinal disease experimentally reproduced in sheep García y Santos, Carmen Garcia, Juan Agustin Dutra, Fernando Livio, Juan Corro, Ana Cecilia Canton, German Jose Escalona, Jorge Capelli, Alejandro Matto, Carolina Giannitti, Federico Uzal, Francisco Gastroenteritis Beetles Ruminants Ewes Toxicity Escarabajo Rumiante Oveja Toxicidad Astylus Atromaculatus Intoxication of sheep and cattle by Astylus atromaculatus recently occurred in Uruguay and Argentina in association with severe drought. Although the disease was experimentally reproduced in sheep in the 1970s, there is limited information on clinical and pathologic findings of sheep experimentally intoxicated by this beetle. Here, we described the clinical, gross, and microscopic findings in 3 sheep orally dosed with A. atromaculatus (treatment group, TG) and in 2 control sheep (control group, CG) dosed with distilled water. Anorexia, lethargy, ruminal stasis, reluctance to move, prolonged recumbency, and bruxism were observed in the TG but not the CG sheep. Gross postmortem lesions were only observed in TG sheep and included fibrinonecrotizing enteritis affecting the duodenum, jejunum, and ileum, and multifocal hemorrhages in rumen, omasum, and abomasum. Microscopically, all 3 TG animals had multifocal necrosis in the small intestine; the lesions were most severe in the jejunum. Multifocal necrosis was seen in the mucosa of the rumen, omasum, and abomasum. No significant gross or microscopic abnormalities were observed in the 2 CG sheep. The study supports the role of A. atromaculatus in acute, fatal gastrointestinal disease like that previously described in experimental and spontaneous cases in sheep. EEA Balcarce Fil: García y Santos, Carmen. Universidad de la República; Uruguay 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 Fil: Dutra, Fernando. Ministerio de Ganadería, Agricultura y Pesca, Treinta y Tres; Uruguay Fil: Livio, Juan. 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: Corro, Ana Cecilia. Universidad de la República; Uruguay Fil: Cantón, Germán. 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: Escalona, Jorge. Universidad de la República; Uruguay Fil: Capelli, Alejandro. Universidad de la República; Uruguay Fil: Matto, Carolina. Ministerio de Ganadería, Agricultura y Pesca, Treinta y Tres; Uruguay Fil: Giannitti, Federico. Instituto de Investigaciones Agropecuarias. Estación Experimental La Estanzuela; Uruguay Fil: Uzal, Francisco. University of California; Estados Unidos 2025-02-14T10:25:41Z 2025-02-14T10:25:41Z 2025-01-30 info:ar-repo/semantics/artículo info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://hdl.handle.net/20.500.12123/21257 https://journals.sagepub.com/doi/10.1177/03009858241309394 0300-9858 (print) 1544-2217 (online) https://doi.org/10.1177/03009858241309394 eng 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) application/pdf SAGE Publications Veterinary Pathology : 1-5 (January 2025) |
| spellingShingle | Gastroenteritis Beetles Ruminants Ewes Toxicity Escarabajo Rumiante Oveja Toxicidad Astylus Atromaculatus García y Santos, Carmen Garcia, Juan Agustin Dutra, Fernando Livio, Juan Corro, Ana Cecilia Canton, German Jose Escalona, Jorge Capelli, Alejandro Matto, Carolina Giannitti, Federico Uzal, Francisco Astylus atromaculatus (pollen beetle) gastrointestinal disease experimentally reproduced in sheep |
| title | Astylus atromaculatus (pollen beetle) gastrointestinal disease experimentally reproduced in sheep |
| title_full | Astylus atromaculatus (pollen beetle) gastrointestinal disease experimentally reproduced in sheep |
| title_fullStr | Astylus atromaculatus (pollen beetle) gastrointestinal disease experimentally reproduced in sheep |
| title_full_unstemmed | Astylus atromaculatus (pollen beetle) gastrointestinal disease experimentally reproduced in sheep |
| title_short | Astylus atromaculatus (pollen beetle) gastrointestinal disease experimentally reproduced in sheep |
| title_sort | astylus atromaculatus pollen beetle gastrointestinal disease experimentally reproduced in sheep |
| topic | Gastroenteritis Beetles Ruminants Ewes Toxicity Escarabajo Rumiante Oveja Toxicidad Astylus Atromaculatus |
| url | http://hdl.handle.net/20.500.12123/21257 https://journals.sagepub.com/doi/10.1177/03009858241309394 https://doi.org/10.1177/03009858241309394 |
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