Non-ambulatory pigs in two Brazilian growing-finishing farms : a clinic, etiological and pathological perspective on 76 cases
Autor(a) principal: | |
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Data de Publicação: | 2022 |
Outros Autores: | , , , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UFRGS |
Texto Completo: | http://hdl.handle.net/10183/250152 |
Resumo: | Background: Non-ambulatory pigs, colloquially known as downers or downed pigs, are animals presented with limited to no mobility, usually as a result of pre-existing neurologic or musculoskeletal conditions. Impaired ambulation is a major cause of euthanasia in pigs, leading to economic losses and animal welfare concerns. Additionally, reaching the underlying diagnosis of impaired ambulation in pigs is commonly a challenging task for swine practitioners. The aim of this necropsy-based study was to report the clinical, etiological, and pathological findings of 76 non-ambulatory grower-finisher pigs, and to correlate tail-biting lesions with the causes of death/reason for euthanasia in non-ambulatory pigs. Necropsies of downed pigs were performed during on-site visits to two pig farms in southern Brazil. Results: The diagnosis of the conditions was based on the clinical, macroscopic, histopathological, bacteriological, immunohistochemical, and molecular findings. The diseases diagnosed in non-ambulatory pigs in this study were suppurative arthritis (29/76), suppurative spondylitis (10/76), PVC-2 associated diseases (8/76), bone fracture (7/76), non-suppurative meningoencephalomyelitis (4/76), suppurative meningoencephalitis (6/76), fibrocartilaginous thromboembolism (3/76), epiphysiolysis (3/76), ascending bacterial myelitis (3/76), and other conditions (3/76). The frequency of suppurative arthritis, suppurative spondylitis, and ascending bacterial myelitis/meningitis was higher in pigs with tail biting lesions than controls (P < 0.001). Conclusions: Non-ambulatory pigs were observed during the entire rearing period, however, the occurrence of non-ambulatory pigs increased in animals aged ≥ 150 days. Infectious diseases were the most common cause of downed pigs, mainly associated with chronic bacterial infections. Tail biting lesions were an important predisposing factor to suppurative arthritis, suppurative spondylitis, and ascending bacterial myelitis/meningitis. |
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Piva, Manoela MarchezanSchwertz, Claiton IsmaelHenker, Luan CleberBianchi, Ronaldo MichelKemper, Regina ToseAlmeida, Bruno Albuquerque deNagae, R.Michaelsen, Taís ReginaPavarini, Saulo Petinatti2022-10-22T05:01:03Z20222055-5660http://hdl.handle.net/10183/250152001148842Background: Non-ambulatory pigs, colloquially known as downers or downed pigs, are animals presented with limited to no mobility, usually as a result of pre-existing neurologic or musculoskeletal conditions. Impaired ambulation is a major cause of euthanasia in pigs, leading to economic losses and animal welfare concerns. Additionally, reaching the underlying diagnosis of impaired ambulation in pigs is commonly a challenging task for swine practitioners. The aim of this necropsy-based study was to report the clinical, etiological, and pathological findings of 76 non-ambulatory grower-finisher pigs, and to correlate tail-biting lesions with the causes of death/reason for euthanasia in non-ambulatory pigs. Necropsies of downed pigs were performed during on-site visits to two pig farms in southern Brazil. Results: The diagnosis of the conditions was based on the clinical, macroscopic, histopathological, bacteriological, immunohistochemical, and molecular findings. The diseases diagnosed in non-ambulatory pigs in this study were suppurative arthritis (29/76), suppurative spondylitis (10/76), PVC-2 associated diseases (8/76), bone fracture (7/76), non-suppurative meningoencephalomyelitis (4/76), suppurative meningoencephalitis (6/76), fibrocartilaginous thromboembolism (3/76), epiphysiolysis (3/76), ascending bacterial myelitis (3/76), and other conditions (3/76). The frequency of suppurative arthritis, suppurative spondylitis, and ascending bacterial myelitis/meningitis was higher in pigs with tail biting lesions than controls (P < 0.001). Conclusions: Non-ambulatory pigs were observed during the entire rearing period, however, the occurrence of non-ambulatory pigs increased in animals aged ≥ 150 days. Infectious diseases were the most common cause of downed pigs, mainly associated with chronic bacterial infections. Tail biting lesions were an important predisposing factor to suppurative arthritis, suppurative spondylitis, and ascending bacterial myelitis/meningitis.application/pdfengPorcine health management. London. Vol. 8 (2022), 36, 12 p.Lesões de caudaCausas de morteSuínosDeambulação prejudicadaEutanásiaSwine pathologyNeurological diseasesLocomotor disordersTail biting lesionNon-ambulatory pigs in two Brazilian growing-finishing farms : a clinic, etiological and pathological perspective on 76 casesEstrangeiroinfo:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da UFRGSinstname:Universidade Federal do Rio Grande do Sul (UFRGS)instacron:UFRGSTEXT001148842.pdf.txt001148842.pdf.txtExtracted Texttext/plain54084http://www.lume.ufrgs.br/bitstream/10183/250152/2/001148842.pdf.txt951b7a371a06749cd92728bfc203b568MD52ORIGINAL001148842.pdfTexto completo (inglês)application/pdf4061894http://www.lume.ufrgs.br/bitstream/10183/250152/1/001148842.pdf300a5d6065e83a2425e3652d4ef6caf2MD5110183/2501522023-12-30 04:23:54.162751oai:www.lume.ufrgs.br:10183/250152Repositório de PublicaçõesPUBhttps://lume.ufrgs.br/oai/requestopendoar:2023-12-30T06:23:54Repositório Institucional da UFRGS - Universidade Federal do Rio Grande do Sul (UFRGS)false |
dc.title.pt_BR.fl_str_mv |
Non-ambulatory pigs in two Brazilian growing-finishing farms : a clinic, etiological and pathological perspective on 76 cases |
title |
Non-ambulatory pigs in two Brazilian growing-finishing farms : a clinic, etiological and pathological perspective on 76 cases |
spellingShingle |
Non-ambulatory pigs in two Brazilian growing-finishing farms : a clinic, etiological and pathological perspective on 76 cases Piva, Manoela Marchezan Lesões de cauda Causas de morte Suínos Deambulação prejudicada Eutanásia Swine pathology Neurological diseases Locomotor disorders Tail biting lesion |
title_short |
Non-ambulatory pigs in two Brazilian growing-finishing farms : a clinic, etiological and pathological perspective on 76 cases |
title_full |
Non-ambulatory pigs in two Brazilian growing-finishing farms : a clinic, etiological and pathological perspective on 76 cases |
title_fullStr |
Non-ambulatory pigs in two Brazilian growing-finishing farms : a clinic, etiological and pathological perspective on 76 cases |
title_full_unstemmed |
Non-ambulatory pigs in two Brazilian growing-finishing farms : a clinic, etiological and pathological perspective on 76 cases |
title_sort |
Non-ambulatory pigs in two Brazilian growing-finishing farms : a clinic, etiological and pathological perspective on 76 cases |
author |
Piva, Manoela Marchezan |
author_facet |
Piva, Manoela Marchezan Schwertz, Claiton Ismael Henker, Luan Cleber Bianchi, Ronaldo Michel Kemper, Regina Tose Almeida, Bruno Albuquerque de Nagae, R. Michaelsen, Taís Regina Pavarini, Saulo Petinatti |
author_role |
author |
author2 |
Schwertz, Claiton Ismael Henker, Luan Cleber Bianchi, Ronaldo Michel Kemper, Regina Tose Almeida, Bruno Albuquerque de Nagae, R. Michaelsen, Taís Regina Pavarini, Saulo Petinatti |
author2_role |
author author author author author author author author |
dc.contributor.author.fl_str_mv |
Piva, Manoela Marchezan Schwertz, Claiton Ismael Henker, Luan Cleber Bianchi, Ronaldo Michel Kemper, Regina Tose Almeida, Bruno Albuquerque de Nagae, R. Michaelsen, Taís Regina Pavarini, Saulo Petinatti |
dc.subject.por.fl_str_mv |
Lesões de cauda Causas de morte Suínos Deambulação prejudicada Eutanásia |
topic |
Lesões de cauda Causas de morte Suínos Deambulação prejudicada Eutanásia Swine pathology Neurological diseases Locomotor disorders Tail biting lesion |
dc.subject.eng.fl_str_mv |
Swine pathology Neurological diseases Locomotor disorders Tail biting lesion |
description |
Background: Non-ambulatory pigs, colloquially known as downers or downed pigs, are animals presented with limited to no mobility, usually as a result of pre-existing neurologic or musculoskeletal conditions. Impaired ambulation is a major cause of euthanasia in pigs, leading to economic losses and animal welfare concerns. Additionally, reaching the underlying diagnosis of impaired ambulation in pigs is commonly a challenging task for swine practitioners. The aim of this necropsy-based study was to report the clinical, etiological, and pathological findings of 76 non-ambulatory grower-finisher pigs, and to correlate tail-biting lesions with the causes of death/reason for euthanasia in non-ambulatory pigs. Necropsies of downed pigs were performed during on-site visits to two pig farms in southern Brazil. Results: The diagnosis of the conditions was based on the clinical, macroscopic, histopathological, bacteriological, immunohistochemical, and molecular findings. The diseases diagnosed in non-ambulatory pigs in this study were suppurative arthritis (29/76), suppurative spondylitis (10/76), PVC-2 associated diseases (8/76), bone fracture (7/76), non-suppurative meningoencephalomyelitis (4/76), suppurative meningoencephalitis (6/76), fibrocartilaginous thromboembolism (3/76), epiphysiolysis (3/76), ascending bacterial myelitis (3/76), and other conditions (3/76). The frequency of suppurative arthritis, suppurative spondylitis, and ascending bacterial myelitis/meningitis was higher in pigs with tail biting lesions than controls (P < 0.001). Conclusions: Non-ambulatory pigs were observed during the entire rearing period, however, the occurrence of non-ambulatory pigs increased in animals aged ≥ 150 days. Infectious diseases were the most common cause of downed pigs, mainly associated with chronic bacterial infections. Tail biting lesions were an important predisposing factor to suppurative arthritis, suppurative spondylitis, and ascending bacterial myelitis/meningitis. |
publishDate |
2022 |
dc.date.accessioned.fl_str_mv |
2022-10-22T05:01:03Z |
dc.date.issued.fl_str_mv |
2022 |
dc.type.driver.fl_str_mv |
Estrangeiro info:eu-repo/semantics/article |
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info:eu-repo/semantics/publishedVersion |
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article |
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http://hdl.handle.net/10183/250152 |
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2055-5660 |
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001148842 |
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http://hdl.handle.net/10183/250152 |
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eng |
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Porcine health management. London. Vol. 8 (2022), 36, 12 p. |
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