Prevalence of equine infectious anemia in stud farms in Minas Gerais, Brazil

Detalhes bibliográficos
Autor(a) principal: Almeida, Valéria Maria Andrade
Data de Publicação: 2017
Outros Autores: Oliveira, Cairo Henrique Sousa de, Fiorillo, Karina Silva, Martins, Marilda Ferreira, Leite, Rômulo Cerqueira, Reis, Jenner Karlisson Pimenta dos, Gonçalves, Vitor Salvador Picão
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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spelling 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
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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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