Incidência de Anaplasma marginale, Babesia bigemina e Babesia bovis em bezerros no semiárido paraibano
Autor(a) principal: | |
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Data de Publicação: | 2018 |
Outros Autores: | , , , , , , |
Tipo de documento: | Artigo |
Idioma: | por |
Título da fonte: | Repositório Institucional da UFRGS |
Texto Completo: | http://hdl.handle.net/10183/180073 |
Resumo: | This study evaluated the incidence of natural infection by agents of cattle tick fever (CTF), Anaplasma marginale, Babesia bovis and Babesia bigemina in calves born in five farms within the semiarid region of Paraíba state, Brazil. In each farm, blood samples were collected from 6 to 14 calves every 14 days during the first 12 months of life of each animal. Blood samples were processed by microhematocrit and tested by PCR for detection of DNA of A. marginale, B. bovis and B. bigemina. In parallel, the tick infestations on animals were quantified in the five farms, as well as populations in horseflies in three farms. From a total of 41 calves monitored during the first year of life, 25 (61.0%) had positive PCR for A. marginale, 7 (17.1%) for B. bigemina and 3 (7.3%) to B. bovis. Incidence values for A. marginale infection ranged from 83.3% to 100% in four farms. Infection with B. bigemina in calves was detected at only two farms (incidence of 12.5% and 85.7%) and by B. bovis in just one (42.8% incidence). On one farm 14 calves remained negative for A. marginale, B. bigemina and B. bovis during the 12 month follow-up. PCR results were confirmed by DNA sequencing of amplified products. The presence of Rhipicephalus (Boophilus) microplus was found only in two farms in which there was infection by A. marginale, B. bigemina and B. bovis (the latter agent in only one of them). A total of 930 horseflies were captured in the study, most during periods of rain in the region; 70.7% of horseflies corresponded to Tabanus claripennis. There was significant association between a positive PCR for A. marginale and B. bigemina and lower hematocrit values. This study demonstrates that even evaluating only five rural properties, the incidence of CTF occurred heterogeneously in the region, confirming the status of enzootic instability area for CTF, previously reported for the semiarid region of Paraiba. |
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Costa, Valéria Medeiros de MendonçaRibeiro, Mucio Flavio BarbosaDuarte, Giuliana Amélia Freire PereiraSoares, João FábioAzevedo, Sergio Santos deBarros, Antonio Thadeu Medeiros deRiet-Correa, FranklinLabruna, Marcelo Bahia2018-07-04T02:27:15Z20180100-736Xhttp://hdl.handle.net/10183/180073001070311This study evaluated the incidence of natural infection by agents of cattle tick fever (CTF), Anaplasma marginale, Babesia bovis and Babesia bigemina in calves born in five farms within the semiarid region of Paraíba state, Brazil. In each farm, blood samples were collected from 6 to 14 calves every 14 days during the first 12 months of life of each animal. Blood samples were processed by microhematocrit and tested by PCR for detection of DNA of A. marginale, B. bovis and B. bigemina. In parallel, the tick infestations on animals were quantified in the five farms, as well as populations in horseflies in three farms. From a total of 41 calves monitored during the first year of life, 25 (61.0%) had positive PCR for A. marginale, 7 (17.1%) for B. bigemina and 3 (7.3%) to B. bovis. Incidence values for A. marginale infection ranged from 83.3% to 100% in four farms. Infection with B. bigemina in calves was detected at only two farms (incidence of 12.5% and 85.7%) and by B. bovis in just one (42.8% incidence). On one farm 14 calves remained negative for A. marginale, B. bigemina and B. bovis during the 12 month follow-up. PCR results were confirmed by DNA sequencing of amplified products. The presence of Rhipicephalus (Boophilus) microplus was found only in two farms in which there was infection by A. marginale, B. bigemina and B. bovis (the latter agent in only one of them). A total of 930 horseflies were captured in the study, most during periods of rain in the region; 70.7% of horseflies corresponded to Tabanus claripennis. There was significant association between a positive PCR for A. marginale and B. bigemina and lower hematocrit values. This study demonstrates that even evaluating only five rural properties, the incidence of CTF occurred heterogeneously in the region, confirming the status of enzootic instability area for CTF, previously reported for the semiarid region of Paraiba.application/pdfporPesquisa veterinária brasileira. Vol. 38, no. 4 (Abr. 2018), p. 605-612Tristeza parasitariaBovinosAnaplasma marginaleBabesia bigeminaBabesia bovisAnálise de sequência de DNAPrevalênciaCarrapatoRhipicephalus microplusAnaplasma marginaleBabesia bigeminaBabesia bovisCalvesCattleCattle tick feverTicksHematophagous DipteraBrazilParasitosesIncidência de Anaplasma marginale, Babesia bigemina e Babesia bovis em bezerros no semiárido paraibanoIncidence of Anaplasma marginale, Babesia bigemina and Babesia bovis among calves in the semiarid region of Paraiba, Brazil info:eu-repo/semantics/articleinfo:eu-repo/semantics/otherinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da UFRGSinstname:Universidade Federal do Rio Grande do Sul (UFRGS)instacron:UFRGSORIGINAL001070311.pdf001070311.pdfTexto completoapplication/pdf1563966http://www.lume.ufrgs.br/bitstream/10183/180073/1/001070311.pdfd15633e9477db6ab7f89d95467129222MD51TEXT001070311.pdf.txt001070311.pdf.txtExtracted Texttext/plain45392http://www.lume.ufrgs.br/bitstream/10183/180073/2/001070311.pdf.txta2f9f5589712379aa2ab9876c1f1f196MD5210183/1800732019-05-12 02:36:26.260164oai:www.lume.ufrgs.br:10183/180073Repositório de PublicaçõesPUBhttps://lume.ufrgs.br/oai/requestopendoar:2019-05-12T05:36:26Repositório Institucional da UFRGS - Universidade Federal do Rio Grande do Sul (UFRGS)false |
dc.title.pt_BR.fl_str_mv |
Incidência de Anaplasma marginale, Babesia bigemina e Babesia bovis em bezerros no semiárido paraibano |
dc.title.alternative.en.fl_str_mv |
Incidence of Anaplasma marginale, Babesia bigemina and Babesia bovis among calves in the semiarid region of Paraiba, Brazil |
title |
Incidência de Anaplasma marginale, Babesia bigemina e Babesia bovis em bezerros no semiárido paraibano |
spellingShingle |
Incidência de Anaplasma marginale, Babesia bigemina e Babesia bovis em bezerros no semiárido paraibano Costa, Valéria Medeiros de Mendonça Tristeza parasitaria Bovinos Anaplasma marginale Babesia bigemina Babesia bovis Análise de sequência de DNA Prevalência Carrapato Rhipicephalus microplus Anaplasma marginale Babesia bigemina Babesia bovis Calves Cattle Cattle tick fever Ticks Hematophagous Diptera Brazil Parasitoses |
title_short |
Incidência de Anaplasma marginale, Babesia bigemina e Babesia bovis em bezerros no semiárido paraibano |
title_full |
Incidência de Anaplasma marginale, Babesia bigemina e Babesia bovis em bezerros no semiárido paraibano |
title_fullStr |
Incidência de Anaplasma marginale, Babesia bigemina e Babesia bovis em bezerros no semiárido paraibano |
title_full_unstemmed |
Incidência de Anaplasma marginale, Babesia bigemina e Babesia bovis em bezerros no semiárido paraibano |
title_sort |
Incidência de Anaplasma marginale, Babesia bigemina e Babesia bovis em bezerros no semiárido paraibano |
author |
Costa, Valéria Medeiros de Mendonça |
author_facet |
Costa, Valéria Medeiros de Mendonça Ribeiro, Mucio Flavio Barbosa Duarte, Giuliana Amélia Freire Pereira Soares, João Fábio Azevedo, Sergio Santos de Barros, Antonio Thadeu Medeiros de Riet-Correa, Franklin Labruna, Marcelo Bahia |
author_role |
author |
author2 |
Ribeiro, Mucio Flavio Barbosa Duarte, Giuliana Amélia Freire Pereira Soares, João Fábio Azevedo, Sergio Santos de Barros, Antonio Thadeu Medeiros de Riet-Correa, Franklin Labruna, Marcelo Bahia |
author2_role |
author author author author author author author |
dc.contributor.author.fl_str_mv |
Costa, Valéria Medeiros de Mendonça Ribeiro, Mucio Flavio Barbosa Duarte, Giuliana Amélia Freire Pereira Soares, João Fábio Azevedo, Sergio Santos de Barros, Antonio Thadeu Medeiros de Riet-Correa, Franklin Labruna, Marcelo Bahia |
dc.subject.por.fl_str_mv |
Tristeza parasitaria Bovinos Anaplasma marginale Babesia bigemina Babesia bovis Análise de sequência de DNA Prevalência Carrapato Rhipicephalus microplus |
topic |
Tristeza parasitaria Bovinos Anaplasma marginale Babesia bigemina Babesia bovis Análise de sequência de DNA Prevalência Carrapato Rhipicephalus microplus Anaplasma marginale Babesia bigemina Babesia bovis Calves Cattle Cattle tick fever Ticks Hematophagous Diptera Brazil Parasitoses |
dc.subject.eng.fl_str_mv |
Anaplasma marginale Babesia bigemina Babesia bovis Calves Cattle Cattle tick fever Ticks Hematophagous Diptera Brazil Parasitoses |
description |
This study evaluated the incidence of natural infection by agents of cattle tick fever (CTF), Anaplasma marginale, Babesia bovis and Babesia bigemina in calves born in five farms within the semiarid region of Paraíba state, Brazil. In each farm, blood samples were collected from 6 to 14 calves every 14 days during the first 12 months of life of each animal. Blood samples were processed by microhematocrit and tested by PCR for detection of DNA of A. marginale, B. bovis and B. bigemina. In parallel, the tick infestations on animals were quantified in the five farms, as well as populations in horseflies in three farms. From a total of 41 calves monitored during the first year of life, 25 (61.0%) had positive PCR for A. marginale, 7 (17.1%) for B. bigemina and 3 (7.3%) to B. bovis. Incidence values for A. marginale infection ranged from 83.3% to 100% in four farms. Infection with B. bigemina in calves was detected at only two farms (incidence of 12.5% and 85.7%) and by B. bovis in just one (42.8% incidence). On one farm 14 calves remained negative for A. marginale, B. bigemina and B. bovis during the 12 month follow-up. PCR results were confirmed by DNA sequencing of amplified products. The presence of Rhipicephalus (Boophilus) microplus was found only in two farms in which there was infection by A. marginale, B. bigemina and B. bovis (the latter agent in only one of them). A total of 930 horseflies were captured in the study, most during periods of rain in the region; 70.7% of horseflies corresponded to Tabanus claripennis. There was significant association between a positive PCR for A. marginale and B. bigemina and lower hematocrit values. This study demonstrates that even evaluating only five rural properties, the incidence of CTF occurred heterogeneously in the region, confirming the status of enzootic instability area for CTF, previously reported for the semiarid region of Paraiba. |
publishDate |
2018 |
dc.date.accessioned.fl_str_mv |
2018-07-04T02:27:15Z |
dc.date.issued.fl_str_mv |
2018 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/other |
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info:eu-repo/semantics/publishedVersion |
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publishedVersion |
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http://hdl.handle.net/10183/180073 |
dc.identifier.issn.pt_BR.fl_str_mv |
0100-736X |
dc.identifier.nrb.pt_BR.fl_str_mv |
001070311 |
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0100-736X 001070311 |
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http://hdl.handle.net/10183/180073 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.ispartof.pt_BR.fl_str_mv |
Pesquisa veterinária brasileira. Vol. 38, no. 4 (Abr. 2018), p. 605-612 |
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info:eu-repo/semantics/openAccess |
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openAccess |
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