Seroprevalence of Toxoplasma gondii, Neospora caninum, and Brucella abortus in sheep from Toledo, Paraná, Brazil
Autor(a) principal: | |
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Data de Publicação: | 2022 |
Outros Autores: | , , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Semina. Ciências Agrárias (Online) |
Texto Completo: | https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/44863 |
Resumo: | Toxoplasmosis is a cosmopolitan disease caused by Toxoplasma gondii and is of great significance in animal production and public health, as evidenced by the two major outbreaks of the disease that occurred in Brazil at the cities of Santa Izabel do Ivai, Paraná and Santa Maria, Rio Grande do Suu. Neospora caninum is the etiological agent of neosporosis, and Brucella spp. causes brucellosis, two of the major causes of reproductive failure in ruminants, causing problems such as abortion, and are responsible for significant economic losses in Brazilian sheep farming. Considering the scarcity of data available on the subject in the study region, the objective of our study was to evaluate seroprevalence of antibodies against T. gondii, N. caninum, and B. abortus in sheep in the municipality of Toledo, Paraná, Brazil. From August 2017 to July 2018, 22 properties were visited, and 240 blood samples were collected from females and males of reproductive age. For detecting antibodies against T. gondii and N. caninum, an Indirect Immunofluorescence technique was utilized, using cutoff points ≥64 and ≥50, respectively. For detecting antibodies against B. abortus, screening was conducted with Acidified Buffered Antigen and verification of reagent samples using the Slow Agglutination and 2-Mercaptoethanol test. Of the analyzed samples, 27.08% (65/240) had antibodies against T. gondii, which were distributed in 81.82% (18/22) of the properties; for N. caninum, there was a prevalence of 15.41% (37/240), and over 68.18% (15/22) of the properties. For B. abortus test results, all samples were considered negative. Our study demonstrated that most properties had animals positive for the protozoa, of which, majorly T. gondii, could cause abortion problems, it being one of the major agents. These epidemiological data provide a basis for strategic programs to implement monitoring and control measures to avoid economic losses in sheep farming. |
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Seroprevalence of Toxoplasma gondii, Neospora caninum, and Brucella abortus in sheep from Toledo, Paraná, BrazilSoroprevalência de Toxoplasma gondii, Neospora caninum e Brucella abortus em ovinos de Toledo, Paraná, BrasilAnticorposBruceloseNeosporoseOvinoculturaToxoplasmose.AntibodiesBrucellosisNeosporosisSheep farmingToxoplasmosis.Toxoplasmosis is a cosmopolitan disease caused by Toxoplasma gondii and is of great significance in animal production and public health, as evidenced by the two major outbreaks of the disease that occurred in Brazil at the cities of Santa Izabel do Ivai, Paraná and Santa Maria, Rio Grande do Suu. Neospora caninum is the etiological agent of neosporosis, and Brucella spp. causes brucellosis, two of the major causes of reproductive failure in ruminants, causing problems such as abortion, and are responsible for significant economic losses in Brazilian sheep farming. Considering the scarcity of data available on the subject in the study region, the objective of our study was to evaluate seroprevalence of antibodies against T. gondii, N. caninum, and B. abortus in sheep in the municipality of Toledo, Paraná, Brazil. From August 2017 to July 2018, 22 properties were visited, and 240 blood samples were collected from females and males of reproductive age. For detecting antibodies against T. gondii and N. caninum, an Indirect Immunofluorescence technique was utilized, using cutoff points ≥64 and ≥50, respectively. For detecting antibodies against B. abortus, screening was conducted with Acidified Buffered Antigen and verification of reagent samples using the Slow Agglutination and 2-Mercaptoethanol test. Of the analyzed samples, 27.08% (65/240) had antibodies against T. gondii, which were distributed in 81.82% (18/22) of the properties; for N. caninum, there was a prevalence of 15.41% (37/240), and over 68.18% (15/22) of the properties. For B. abortus test results, all samples were considered negative. Our study demonstrated that most properties had animals positive for the protozoa, of which, majorly T. gondii, could cause abortion problems, it being one of the major agents. These epidemiological data provide a basis for strategic programs to implement monitoring and control measures to avoid economic losses in sheep farming.A toxoplasmose é uma doença cosmopolita, causada pelo Toxoplasma gondii, com grande importância no contexto de produção animal e saúde pública como evidenciado nos dois maiores surtos da doença que ocorreram nas cidades brasileiras de em Santa Izabel do Ivai-PR e Santa Maria-RS. Enquanto o Neospora caninum é o agente causador da neosporose e a Brucella spp. causadora da brucelose, duas das principais causas de falhas reprodutivas em ruminantes, ocasionando problemas como abortamento, e responsáveis por significativas perdas econômicas na ovinocultura brasileira. Considerando a escassez de dados disponíveis sobre o tema para a região estudada, o objetivo do presente estudo foi avaliar a soroprevalência de anticorpos contra T. gondii, N. caninum e B. abortus em ovinos do município de Toledo, Paraná, Brasil. Durante o período de agosto de 2017 a julho de 2018 foram visitadas 22 propriedades e coletadas 240 amostras de sangue de fêmeas e machos em idade reprodutiva. Para a detecção de anticorpos contra o T. gondii e N. caninum foi utilizada a técnica de Imunofluorescência Indireta empregando ponto de corte ≥64 e ≥50, respectivamente. Para a detecção de anticorpos contra B. abortus foi realizada a triagem com o Antígeno Acidificado Tamponado e confirmação das amostras reagentes com o teste de Soroaglutinação Lenta e do 2-Mercaptoetanol. Das amostras analisadas, 27,08% (65/240) apresentaram anticorpos contra o T. gondii, estes se encontravam distribuídas em 81,82% (18/22) das propriedades, para N. caninum observou-se uma prevalência de 15,41% (37/240), distribuídas em 68,18% (15/22) das propriedades. Quanto ao resultado dos testes da B. abortus todas as amostras foram consideradas negativas. O presente estudo mostrou que a grande maioria das propriedades apresentaram animais positivos para os protozoários, os quais, principalmente T. gondii, poderiam estar causando problemas de abortamentos. Estes dados epidemiológicos fornecem embasamento para programas estratégicos a fim de realizar medidas de monitoramento e controle, evitando perdas econômicas na ovinocultura.UEL2022-12-22info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionPesquisa Empícica de Campoapplication/pdfhttps://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/4486310.5433/1679-0359.2022v43n6p2657Semina: Ciências Agrárias; Vol. 43 No. 6 (2022); 2657-2670Semina: Ciências Agrárias; v. 43 n. 6 (2022); 2657-26701679-03591676-546Xreponame:Semina. Ciências Agrárias (Online)instname:Universidade Estadual de Londrina (UEL)instacron:UELenghttps://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/44863/48205Copyright (c) 2022 Semina: Ciências Agráriashttp://creativecommons.org/licenses/by-nc/4.0info:eu-repo/semantics/openAccessBertuzzi, Cristian AndréWeschenfelder, Evaldo AlanWebber, Douglas AdrianoMartins, Thais AgostinhoNino, Beatriz Souza LimaFrigotto, Tiago AndréGarcia, João LuisZulpo, Dauton Luiz2023-01-31T12:58:04Zoai:ojs.pkp.sfu.ca:article/44863Revistahttp://www.uel.br/revistas/uel/index.php/semagrariasPUBhttps://ojs.uel.br/revistas/uel/index.php/semagrarias/oaisemina.agrarias@uel.br1679-03591676-546Xopendoar:2023-01-31T12:58:04Semina. Ciências Agrárias (Online) - Universidade Estadual de Londrina (UEL)false |
dc.title.none.fl_str_mv |
Seroprevalence of Toxoplasma gondii, Neospora caninum, and Brucella abortus in sheep from Toledo, Paraná, Brazil Soroprevalência de Toxoplasma gondii, Neospora caninum e Brucella abortus em ovinos de Toledo, Paraná, Brasil |
title |
Seroprevalence of Toxoplasma gondii, Neospora caninum, and Brucella abortus in sheep from Toledo, Paraná, Brazil |
spellingShingle |
Seroprevalence of Toxoplasma gondii, Neospora caninum, and Brucella abortus in sheep from Toledo, Paraná, Brazil Bertuzzi, Cristian André Anticorpos Brucelose Neosporose Ovinocultura Toxoplasmose. Antibodies Brucellosis Neosporosis Sheep farming Toxoplasmosis. |
title_short |
Seroprevalence of Toxoplasma gondii, Neospora caninum, and Brucella abortus in sheep from Toledo, Paraná, Brazil |
title_full |
Seroprevalence of Toxoplasma gondii, Neospora caninum, and Brucella abortus in sheep from Toledo, Paraná, Brazil |
title_fullStr |
Seroprevalence of Toxoplasma gondii, Neospora caninum, and Brucella abortus in sheep from Toledo, Paraná, Brazil |
title_full_unstemmed |
Seroprevalence of Toxoplasma gondii, Neospora caninum, and Brucella abortus in sheep from Toledo, Paraná, Brazil |
title_sort |
Seroprevalence of Toxoplasma gondii, Neospora caninum, and Brucella abortus in sheep from Toledo, Paraná, Brazil |
author |
Bertuzzi, Cristian André |
author_facet |
Bertuzzi, Cristian André Weschenfelder, Evaldo Alan Webber, Douglas Adriano Martins, Thais Agostinho Nino, Beatriz Souza Lima Frigotto, Tiago André Garcia, João Luis Zulpo, Dauton Luiz |
author_role |
author |
author2 |
Weschenfelder, Evaldo Alan Webber, Douglas Adriano Martins, Thais Agostinho Nino, Beatriz Souza Lima Frigotto, Tiago André Garcia, João Luis Zulpo, Dauton Luiz |
author2_role |
author author author author author author author |
dc.contributor.author.fl_str_mv |
Bertuzzi, Cristian André Weschenfelder, Evaldo Alan Webber, Douglas Adriano Martins, Thais Agostinho Nino, Beatriz Souza Lima Frigotto, Tiago André Garcia, João Luis Zulpo, Dauton Luiz |
dc.subject.por.fl_str_mv |
Anticorpos Brucelose Neosporose Ovinocultura Toxoplasmose. Antibodies Brucellosis Neosporosis Sheep farming Toxoplasmosis. |
topic |
Anticorpos Brucelose Neosporose Ovinocultura Toxoplasmose. Antibodies Brucellosis Neosporosis Sheep farming Toxoplasmosis. |
description |
Toxoplasmosis is a cosmopolitan disease caused by Toxoplasma gondii and is of great significance in animal production and public health, as evidenced by the two major outbreaks of the disease that occurred in Brazil at the cities of Santa Izabel do Ivai, Paraná and Santa Maria, Rio Grande do Suu. Neospora caninum is the etiological agent of neosporosis, and Brucella spp. causes brucellosis, two of the major causes of reproductive failure in ruminants, causing problems such as abortion, and are responsible for significant economic losses in Brazilian sheep farming. Considering the scarcity of data available on the subject in the study region, the objective of our study was to evaluate seroprevalence of antibodies against T. gondii, N. caninum, and B. abortus in sheep in the municipality of Toledo, Paraná, Brazil. From August 2017 to July 2018, 22 properties were visited, and 240 blood samples were collected from females and males of reproductive age. For detecting antibodies against T. gondii and N. caninum, an Indirect Immunofluorescence technique was utilized, using cutoff points ≥64 and ≥50, respectively. For detecting antibodies against B. abortus, screening was conducted with Acidified Buffered Antigen and verification of reagent samples using the Slow Agglutination and 2-Mercaptoethanol test. Of the analyzed samples, 27.08% (65/240) had antibodies against T. gondii, which were distributed in 81.82% (18/22) of the properties; for N. caninum, there was a prevalence of 15.41% (37/240), and over 68.18% (15/22) of the properties. For B. abortus test results, all samples were considered negative. Our study demonstrated that most properties had animals positive for the protozoa, of which, majorly T. gondii, could cause abortion problems, it being one of the major agents. These epidemiological data provide a basis for strategic programs to implement monitoring and control measures to avoid economic losses in sheep farming. |
publishDate |
2022 |
dc.date.none.fl_str_mv |
2022-12-22 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Pesquisa Empícica de Campo |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/44863 10.5433/1679-0359.2022v43n6p2657 |
url |
https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/44863 |
identifier_str_mv |
10.5433/1679-0359.2022v43n6p2657 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/44863/48205 |
dc.rights.driver.fl_str_mv |
Copyright (c) 2022 Semina: Ciências Agrárias http://creativecommons.org/licenses/by-nc/4.0 info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
Copyright (c) 2022 Semina: Ciências Agrárias http://creativecommons.org/licenses/by-nc/4.0 |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
UEL |
publisher.none.fl_str_mv |
UEL |
dc.source.none.fl_str_mv |
Semina: Ciências Agrárias; Vol. 43 No. 6 (2022); 2657-2670 Semina: Ciências Agrárias; v. 43 n. 6 (2022); 2657-2670 1679-0359 1676-546X reponame:Semina. Ciências Agrárias (Online) instname:Universidade Estadual de Londrina (UEL) instacron:UEL |
instname_str |
Universidade Estadual de Londrina (UEL) |
instacron_str |
UEL |
institution |
UEL |
reponame_str |
Semina. Ciências Agrárias (Online) |
collection |
Semina. Ciências Agrárias (Online) |
repository.name.fl_str_mv |
Semina. Ciências Agrárias (Online) - Universidade Estadual de Londrina (UEL) |
repository.mail.fl_str_mv |
semina.agrarias@uel.br |
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1799306056441004032 |