Dictyocaulosis in cattle: Retrospective analysis of 20 outbreaks in Central Argentina
Bovine lungworms (Dictyocaulus viviparus) are nematodes which cause a respiratory disease known as verminous bronchitis or pneumonia. In this paper, we describe 20 outbreaks of bovine dictyocaulosis recorded between 2000 and 2023 in Central Argentina. Outbreaks occurred more frequently during the au...
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| Format: | info:ar-repo/semantics/artículo |
| Language: | Inglés |
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Elsevier
2024
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| Online Access: | http://hdl.handle.net/20.500.12123/19448 https://www.sciencedirect.com/science/article/abs/pii/S2405939024001369 https://doi.org/10.1016/j.vprsr.2024.101107 |
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| author | Ovelar, María Florencia Canton, German Jose Odriozola, Ernesto Raul Lloberas, María Mercedes Garcia, Juan Agustin |
| author_browse | Canton, German Jose Garcia, Juan Agustin Lloberas, María Mercedes Odriozola, Ernesto Raul Ovelar, María Florencia |
| author_facet | Ovelar, María Florencia Canton, German Jose Odriozola, Ernesto Raul Lloberas, María Mercedes Garcia, Juan Agustin |
| author_sort | Ovelar, María Florencia |
| collection | INTA Digital |
| description | Bovine lungworms (Dictyocaulus viviparus) are nematodes which cause a respiratory disease known as verminous bronchitis or pneumonia. In this paper, we describe 20 outbreaks of bovine dictyocaulosis recorded between 2000 and 2023 in Central Argentina. Outbreaks occurred more frequently during the autumn-winter season (from April to August) and affected cattle under 1 year old in beef production systems. An average morbidity and mortality of 26.22 % and 8.44 % were registered, respectively. The main clinical signs observed were respiratory distress (coughing, tachypnea, dyspnea, and nasal discharge), weight loss, weakness, decubitus, and diarrhea. Necropsies were performed in thirty-one calves, heifers, and steers. Gross findings included diffuse interstitial or multifocal pneumonia, with marbled appearance intermingling atelectasis and red-gray firm areas of consolidation, and subpleural and interlobular emphysema and edema. Microscopically, lungs were characterized by abundant edema and mixed intra-alveolar multifocal to coalescent infiltrate. Frequently, adult worms and/or larvae were spotted in the bronchi or alveoli, respectively. Some cases exhibited proliferation of type 2 pneumocytes and hyaline membranes covering the alveolar septa. Co-infections with gastrointestinal nematodes were frequently found in fecal samples. Given the perspective of anthelmintic resistance and future changes in environmental conditions due to climate change, integrated parasitic control strategies are mandatory and should be tailored to each production system. The information gathered in this research provides an overview of lungworm infections in livestock production systems from Central Argentina and could be useful for surveilling, monitoring and designing strategic interventions for the control of this important parasitic disease in the region. |
| format | info:ar-repo/semantics/artículo |
| id | INTA19448 |
| institution | Instituto Nacional de Tecnología Agropecuaria (INTA -Argentina) |
| language | Inglés |
| publishDate | 2024 |
| publishDateRange | 2024 |
| publishDateSort | 2024 |
| publisher | Elsevier |
| publisherStr | Elsevier |
| record_format | dspace |
| spelling | INTA194482024-09-18T12:20:57Z Dictyocaulosis in cattle: Retrospective analysis of 20 outbreaks in Central Argentina Ovelar, María Florencia Canton, German Jose Odriozola, Ernesto Raul Lloberas, María Mercedes Garcia, Juan Agustin Dictiocaulosis Ganado Bovino Infección por Nematodos Enfermedades de los Animales Argentina Cattle Nematode Infectious Animal Diseases Dictyocaulosis Dictyocaulus viviparus Bovine lungworms (Dictyocaulus viviparus) are nematodes which cause a respiratory disease known as verminous bronchitis or pneumonia. In this paper, we describe 20 outbreaks of bovine dictyocaulosis recorded between 2000 and 2023 in Central Argentina. Outbreaks occurred more frequently during the autumn-winter season (from April to August) and affected cattle under 1 year old in beef production systems. An average morbidity and mortality of 26.22 % and 8.44 % were registered, respectively. The main clinical signs observed were respiratory distress (coughing, tachypnea, dyspnea, and nasal discharge), weight loss, weakness, decubitus, and diarrhea. Necropsies were performed in thirty-one calves, heifers, and steers. Gross findings included diffuse interstitial or multifocal pneumonia, with marbled appearance intermingling atelectasis and red-gray firm areas of consolidation, and subpleural and interlobular emphysema and edema. Microscopically, lungs were characterized by abundant edema and mixed intra-alveolar multifocal to coalescent infiltrate. Frequently, adult worms and/or larvae were spotted in the bronchi or alveoli, respectively. Some cases exhibited proliferation of type 2 pneumocytes and hyaline membranes covering the alveolar septa. Co-infections with gastrointestinal nematodes were frequently found in fecal samples. Given the perspective of anthelmintic resistance and future changes in environmental conditions due to climate change, integrated parasitic control strategies are mandatory and should be tailored to each production system. The information gathered in this research provides an overview of lungworm infections in livestock production systems from Central Argentina and could be useful for surveilling, monitoring and designing strategic interventions for the control of this important parasitic disease in the region. EEA Balcarce Fil: Ovelar, María Florencia. 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: Odriozola Ernesto. 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: Lloberas, María Mercedes. 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 2024-09-18T12:08:17Z 2024-09-18T12:08:17Z 2024-08 info:ar-repo/semantics/artículo info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://hdl.handle.net/20.500.12123/19448 https://www.sciencedirect.com/science/article/abs/pii/S2405939024001369 2405-9390 (online) https://doi.org/10.1016/j.vprsr.2024.101107 eng info:eu-repograntAgreement/INTA/2019-RIST-E5-I111-001, Laboratorios de Diagnóstico Veterinario 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 Elsevier Veterinary Parasitology: Regional Studies and Reports 55 : 101107 (October 2024) |
| spellingShingle | Dictiocaulosis Ganado Bovino Infección por Nematodos Enfermedades de los Animales Argentina Cattle Nematode Infectious Animal Diseases Dictyocaulosis Dictyocaulus viviparus Ovelar, María Florencia Canton, German Jose Odriozola, Ernesto Raul Lloberas, María Mercedes Garcia, Juan Agustin Dictyocaulosis in cattle: Retrospective analysis of 20 outbreaks in Central Argentina |
| title | Dictyocaulosis in cattle: Retrospective analysis of 20 outbreaks in Central Argentina |
| title_full | Dictyocaulosis in cattle: Retrospective analysis of 20 outbreaks in Central Argentina |
| title_fullStr | Dictyocaulosis in cattle: Retrospective analysis of 20 outbreaks in Central Argentina |
| title_full_unstemmed | Dictyocaulosis in cattle: Retrospective analysis of 20 outbreaks in Central Argentina |
| title_short | Dictyocaulosis in cattle: Retrospective analysis of 20 outbreaks in Central Argentina |
| title_sort | dictyocaulosis in cattle retrospective analysis of 20 outbreaks in central argentina |
| topic | Dictiocaulosis Ganado Bovino Infección por Nematodos Enfermedades de los Animales Argentina Cattle Nematode Infectious Animal Diseases Dictyocaulosis Dictyocaulus viviparus |
| url | http://hdl.handle.net/20.500.12123/19448 https://www.sciencedirect.com/science/article/abs/pii/S2405939024001369 https://doi.org/10.1016/j.vprsr.2024.101107 |
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