Prevalence of equine infectious anemia in stud farms in Minas Gerais, Brazil
Autor(a) principal: | |
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Data de Publicação: | 2017 |
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/23982 |
Resumo: | Horse breeding is expanding in Brazil. Nevertheless, equine infectious anemia (EIA) a transmissible, incurable disease is an obstacle to the development of the horse industry. Therefore, to determine the incidence of EIA at stud farms in the state of Minas Gerais, Brazil, a serological survey was conducted to estimate the prevalence and identify potential risk factors for equine infectious anemia virus (EIAV) transmission. This was the second stage of an ongoing study on the epidemiology of the disease, which was first observed in draft horses. A sample of 7,742 equids from 717 stud farms in seven regions within the State was tested between May 2004 and January 2006. Laboratory tests including enzyme-linked immunosorbent assays and agar gel immunodiffusion were conducted for screening and confirmation, respectively. The prevalence of EIA was estimated to be 0.44% (95% confidence interval [CI]=0.00-0.871) at the farm level and 0.07% (95% CI=0.00-0.251) at the animal level. The low prevalence of EIA in stud farms might be explained by the higher zootechnical value of stable-bred animals, which leads to periodical serological control and compliance with the slaughter of test-positive animals in order to keep the farm EIA-free. Moreover, stable-bred horses usually travel more and are subjected to more official controls than are draft horses. The highest prevalence of EIA was observed in regions 1 (North/Northwest of Minas Gerais) and 2 (Vale do Mucuri/Jequitinhonha), with rates of 0.34% and 0.72%, respectively. These results show that the prevalence of EIA at stud farms in Minas Gerais is generally low, with the prevalence being higher in the northern part of the State (regions 1 and 2). A previous serological survey on EIA among draft horses showed a very similar distribution of EIA infection in Minas Gerais. These results suggest a very similar pattern of EIA distribution across the State and irrespective of zootechnical value, but the northern/northwestern regions have a higher prevalence than do the southern regions. |
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Prevalence of equine infectious anemia in stud farms in Minas Gerais, BrazilPrevalência da anemia infecciosa equina em haras de Minas Gerais, BrasilEIAEquidsEpidemiologyAGIDELISA.EIAEquídeosEpidemiologiaIDGAELISA.Horse breeding is expanding in Brazil. Nevertheless, equine infectious anemia (EIA) a transmissible, incurable disease is an obstacle to the development of the horse industry. Therefore, to determine the incidence of EIA at stud farms in the state of Minas Gerais, Brazil, a serological survey was conducted to estimate the prevalence and identify potential risk factors for equine infectious anemia virus (EIAV) transmission. This was the second stage of an ongoing study on the epidemiology of the disease, which was first observed in draft horses. A sample of 7,742 equids from 717 stud farms in seven regions within the State was tested between May 2004 and January 2006. Laboratory tests including enzyme-linked immunosorbent assays and agar gel immunodiffusion were conducted for screening and confirmation, respectively. The prevalence of EIA was estimated to be 0.44% (95% confidence interval [CI]=0.00-0.871) at the farm level and 0.07% (95% CI=0.00-0.251) at the animal level. The low prevalence of EIA in stud farms might be explained by the higher zootechnical value of stable-bred animals, which leads to periodical serological control and compliance with the slaughter of test-positive animals in order to keep the farm EIA-free. Moreover, stable-bred horses usually travel more and are subjected to more official controls than are draft horses. The highest prevalence of EIA was observed in regions 1 (North/Northwest of Minas Gerais) and 2 (Vale do Mucuri/Jequitinhonha), with rates of 0.34% and 0.72%, respectively. These results show that the prevalence of EIA at stud farms in Minas Gerais is generally low, with the prevalence being higher in the northern part of the State (regions 1 and 2). A previous serological survey on EIA among draft horses showed a very similar distribution of EIA infection in Minas Gerais. These results suggest a very similar pattern of EIA distribution across the State and irrespective of zootechnical value, but the northern/northwestern regions have a higher prevalence than do the southern regions.A criação de cavalos está em expansão no Brasil. No entanto, a anemia infecciosa equina (EIA), uma doença transmissível, incurável é um obstáculo ao desenvolvimento da indústria equidea. Dessa forma, para determinar a incidência de AIE em haras de Minas Gerais, foi realizado um levantamento sorológico para estimar a prevalência e identificar potenciais fatores de risco para a transmissão do vírus da anemia infecciosa equina (EIAV). Esta foi a segunda etapa de um estudo em curso sobre a epidemiologia da doença, que foi realizado pela primeira vez em animais de serviço. Uma amostra de 7.742 equídeos de 717 fazendas em sete regiões do Estado foi testada entre maio de 2004 e janeiro de 2006. Testes de laboratório incluindo ensaios imunoenzimáticos e a imunodifusão em gel de ágar foram conduzidos para triagem e confirmação, respectivamente. A prevalência de AIE foi estimada em 0,44% (intervalo de confiança de 95% [IC] = 0,00-0,871) ao nível de propriedade e 0,07% (IC 95% = 0,00-0,251) ao nível animal. A baixa prevalência de AIE em haras pode ser explicada pelo maior valor zootécnico de animais de raça estabulados, o que leva ao controle sorológico periódico e ao cumprimento do abate de animais positivos ao teste, a fim de manter a fazenda livre da AIE. Além disso, os cavalos de haras geralmente viajam mais e são submetidos aos controles oficiais com maior frequência do que os animais de serviço. A maior prevalência de AIE foi observada nas regiões 1 (Norte / Noroeste de Minas Gerais) e 2 (Vale do Mucuri / Jequitinhonha), com taxas de 0,34% e 0,72%, respectivamente. Esses resultados mostram que a prevalência de AIE em haras em Minas Gerais é geralmente baixa, sendo a prevalência maior na região norte do Estado (regiões 1 e 2). Um levantamento sorológico prévio sobre AIE em animais de serviço mostrou uma distribuição muito semelhante da doença em Minas Gerais. Estes resultados sugerem um padrão muito semelhante de distribuição da AIE em todo o Estado, independentemente do valor zootécnico, mas as regiões norte / noroeste têm uma prevalência maior do que as regiões do sul.UEL2017-06-13info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionPesquisa de campoapplication/pdfhttps://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/2398210.5433/1679-0359.2017v38n3p1335Semina: Ciências Agrárias; Vol. 38 No. 3 (2017); 1335-1346Semina: Ciências Agrárias; v. 38 n. 3 (2017); 1335-13461679-03591676-546Xreponame:Semina. Ciências Agrárias (Online)instname:Universidade Estadual de Londrina (UEL)instacron:UELenghttps://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/23982/21041Copyright (c) 2017 Semina: Ciências Agráriashttp://creativecommons.org/licenses/by-nc/4.0info:eu-repo/semantics/openAccessAlmeida, Valéria Maria AndradeOliveira, Cairo Henrique Sousa deFiorillo, Karina SilvaMartins, Marilda FerreiraLeite, Rômulo CerqueiraReis, Jenner Karlisson Pimenta dosGonçalves, Vitor Salvador Picão2022-10-24T13:32:13Zoai:ojs.pkp.sfu.ca:article/23982Revistahttp://www.uel.br/revistas/uel/index.php/semagrariasPUBhttps://ojs.uel.br/revistas/uel/index.php/semagrarias/oaisemina.agrarias@uel.br1679-03591676-546Xopendoar:2022-10-24T13:32:13Semina. Ciências Agrárias (Online) - Universidade Estadual de Londrina (UEL)false |
dc.title.none.fl_str_mv |
Prevalence of equine infectious anemia in stud farms in Minas Gerais, Brazil Prevalência da anemia infecciosa equina em haras de Minas Gerais, Brasil |
title |
Prevalence of equine infectious anemia in stud farms in Minas Gerais, Brazil |
spellingShingle |
Prevalence of equine infectious anemia in stud farms in Minas Gerais, Brazil Almeida, Valéria Maria Andrade EIA Equids Epidemiology AGID ELISA. EIA Equídeos Epidemiologia IDGA ELISA. |
title_short |
Prevalence of equine infectious anemia in stud farms in Minas Gerais, Brazil |
title_full |
Prevalence of equine infectious anemia in stud farms in Minas Gerais, Brazil |
title_fullStr |
Prevalence of equine infectious anemia in stud farms in Minas Gerais, Brazil |
title_full_unstemmed |
Prevalence of equine infectious anemia in stud farms in Minas Gerais, Brazil |
title_sort |
Prevalence of equine infectious anemia in stud farms in Minas Gerais, Brazil |
author |
Almeida, Valéria Maria Andrade |
author_facet |
Almeida, Valéria Maria Andrade Oliveira, Cairo Henrique Sousa de Fiorillo, Karina Silva Martins, Marilda Ferreira Leite, Rômulo Cerqueira Reis, Jenner Karlisson Pimenta dos Gonçalves, Vitor Salvador Picão |
author_role |
author |
author2 |
Oliveira, Cairo Henrique Sousa de Fiorillo, Karina Silva Martins, Marilda Ferreira Leite, Rômulo Cerqueira Reis, Jenner Karlisson Pimenta dos Gonçalves, Vitor Salvador Picão |
author2_role |
author author author author author author |
dc.contributor.author.fl_str_mv |
Almeida, Valéria Maria Andrade Oliveira, Cairo Henrique Sousa de Fiorillo, Karina Silva Martins, Marilda Ferreira Leite, Rômulo Cerqueira Reis, Jenner Karlisson Pimenta dos Gonçalves, Vitor Salvador Picão |
dc.subject.por.fl_str_mv |
EIA Equids Epidemiology AGID ELISA. EIA Equídeos Epidemiologia IDGA ELISA. |
topic |
EIA Equids Epidemiology AGID ELISA. EIA Equídeos Epidemiologia IDGA ELISA. |
description |
Horse breeding is expanding in Brazil. Nevertheless, equine infectious anemia (EIA) a transmissible, incurable disease is an obstacle to the development of the horse industry. Therefore, to determine the incidence of EIA at stud farms in the state of Minas Gerais, Brazil, a serological survey was conducted to estimate the prevalence and identify potential risk factors for equine infectious anemia virus (EIAV) transmission. This was the second stage of an ongoing study on the epidemiology of the disease, which was first observed in draft horses. A sample of 7,742 equids from 717 stud farms in seven regions within the State was tested between May 2004 and January 2006. Laboratory tests including enzyme-linked immunosorbent assays and agar gel immunodiffusion were conducted for screening and confirmation, respectively. The prevalence of EIA was estimated to be 0.44% (95% confidence interval [CI]=0.00-0.871) at the farm level and 0.07% (95% CI=0.00-0.251) at the animal level. The low prevalence of EIA in stud farms might be explained by the higher zootechnical value of stable-bred animals, which leads to periodical serological control and compliance with the slaughter of test-positive animals in order to keep the farm EIA-free. Moreover, stable-bred horses usually travel more and are subjected to more official controls than are draft horses. The highest prevalence of EIA was observed in regions 1 (North/Northwest of Minas Gerais) and 2 (Vale do Mucuri/Jequitinhonha), with rates of 0.34% and 0.72%, respectively. These results show that the prevalence of EIA at stud farms in Minas Gerais is generally low, with the prevalence being higher in the northern part of the State (regions 1 and 2). A previous serological survey on EIA among draft horses showed a very similar distribution of EIA infection in Minas Gerais. These results suggest a very similar pattern of EIA distribution across the State and irrespective of zootechnical value, but the northern/northwestern regions have a higher prevalence than do the southern regions. |
publishDate |
2017 |
dc.date.none.fl_str_mv |
2017-06-13 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Pesquisa de campo |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/23982 10.5433/1679-0359.2017v38n3p1335 |
url |
https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/23982 |
identifier_str_mv |
10.5433/1679-0359.2017v38n3p1335 |
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/23982/21041 |
dc.rights.driver.fl_str_mv |
Copyright (c) 2017 Semina: Ciências Agrárias http://creativecommons.org/licenses/by-nc/4.0 info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
Copyright (c) 2017 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. 38 No. 3 (2017); 1335-1346 Semina: Ciências Agrárias; v. 38 n. 3 (2017); 1335-1346 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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1799306075269234688 |