Detec??o de Anaplasma platys em c?es e em carrapatos: padroniza??ode qPCR e an?lise epidemiol?gica no Estado do Rio de Janeiro, Brasil e na regi?o ocidental de Cuba

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Main Author: Silva, Claudia Bezerra da
Other Authors: Massard, Carlos Luiz
Format: Others
Language:Portuguese
Published: Universidade Federal Rural do Rio de Janeiro 2017
Subjects:
Online Access:https://tede.ufrrj.br/jspui/handle/jspui/2107
id ndltd-IBICT-oai-localhost-jspui-2107
record_format oai_dc
collection NDLTD
language Portuguese
format Others
sources NDLTD
topic dogs
molecular diagnostic
phylogeny
Anaplasma platys
c?es
diagn?stico molecular
qPCR
nested PCR
filogenia
Rhipicephalus sanguineus sensu lato
Ci?ncias Biol?gicas
spellingShingle dogs
molecular diagnostic
phylogeny
Anaplasma platys
c?es
diagn?stico molecular
qPCR
nested PCR
filogenia
Rhipicephalus sanguineus sensu lato
Ci?ncias Biol?gicas
Silva, Claudia Bezerra da
Detec??o de Anaplasma platys em c?es e em carrapatos: padroniza??ode qPCR e an?lise epidemiol?gica no Estado do Rio de Janeiro, Brasil e na regi?o ocidental de Cuba
description Submitted by Celso Magalhaes (celsomagalhaes@ufrrj.br) on 2017-10-19T13:49:16Z No. of bitstreams: 1 2016 - Claudia Bezerra da Silva.pdf: 8032175 bytes, checksum: ef71dd2a0e7801e9000e116c822a3a00 (MD5) === Made available in DSpace on 2017-10-19T13:49:16Z (GMT). No. of bitstreams: 1 2016 - Claudia Bezerra da Silva.pdf: 8032175 bytes, checksum: ef71dd2a0e7801e9000e116c822a3a00 (MD5) Previous issue date: 2016-03-11 === Coordena??o de Aperfei?oamento de Pessoal de N?vel Superior - CAPES === and investigate the circulation of this agent in dogs in the Itaguai microregion, Rio de Janeiro, Brazil, and dogs and ticks in two provinces of the island of Cuba, analyzing epidemiological aspects associated with infections caused by this bacterium in dogs. A new real-time polymerase chain reaction method (qPCR) was patterned to target the citrate synthase gene (gltA) for the identification of A. platys in naturally infected dogs. The primers and probe were designed to amplify a fragment of 84 base pairs based on gltA gene sequences of A. platys available in GenBank. 186 blood samples of dogs from Itaguai microregion, Rio de Janeiro, Brazil, were tested by qPCR. The same samples were tested by cytology and nested polymerase chain reaction (nPCR, 16S rDNA) to determine the performance of qPCR front of these techniques. 17.20% of the samples tested positive by qPCR were significantly more than that detected by nPCR (13.98%). The qPCR technique was more specific than cytology, due to false-positive results obtained by optical microscopy. The prevalence of A. platys in dogs from Itaguai microregion was 14.4%. Dogs less than six months, infested by ticks, that spend the most of the time restrict to domestic environment and without shelter are factors associated with infection by this hemoparasite in dogs in the study area. During research, A. platys held in Cuba, 100 blood samples were collected from residents dogs in four cities located in the provinces of Havana and Mayabeque. When inspecting the animals, found ticks were collected, identified and carefully grouped, forming a total of 49 pools. DNA extracted from blood samples from dogs and ticks were subjected nPCR (16S rDNA). Positive samples in nPCR were also subjected to conventional PCR (gltA gene), and the products were sequenced. Only the species Rhipicephalus sanguineus sensu lato was found in Cuban dogs and 10.2% (n=5/49) of these ticks added to 16.0% (n=16/100) dogs were considered positive for A. platys. All sequences analyzed of the gltA and 16S rDNA genes, respectively, showed a 99-100% identity with sequences from A. platys reported in other countries. Phylogenetic analysis showed two clusters defined for the 16S rDNA gene and three clusters defined for the gltA gene. Based on the gltA gene, the deduced amino acid sequence showed two points of non-synonymous mutations at positions 88 and 168 compared to the reference sequence DQ525687. A preliminary study on the epidemiological aspects associated with infection with A. platys showed no statistical association with the variables studied (p> 0.05). This study also to report the first evidence of A. platys in both dogs and ticks in Cuba also presents for the first time the development of a new qPCR method that contributes to the advancement of research involving A. platys. The epidemiological study in Brazil allowed us to identify significant factors in the occurrence of canine anaplasmosis, while in Cuba, it can be concluded that more research is needed to assess what the deciding factors in the transmission and spread of A. platys in that country. === platys, e investigar a circula??o deste agente em c?es na microrregi?o de Itagua?, Rio de Janeiro, Brasil, e c?es e carrapatos em duas prov?ncias da ilha de Cuba, analisando aspectos epidemiol?gicos associados ? infec??o causada por esta bact?ria em c?es. Um novo m?todo de rea??o em cadeia da polimerase em tempo real (qPCR) foi padronizado com alvo no gene citrato sintase (gltA) para a identifica??o de A. platys em c?es naturalmente infectados. Os oligoiniciadores e a sonda foram desenhados para amplificar um fragmento de 84 pares de base baseado em sequ?ncias do gene gltA de A. platys dispon?veis no GenBank. 186 amostras de sangue de c?es da microrregi?o de Itagua?, Rio de Janeiro, Brasil, foram testados pela qPCR. As mesmas amostras foram testadas pela citologia e rea??o em cadeia da polimerase nested (nPCR, 16S rDNA) para determinar o desempenho da qPCR frente ? essas t?cnicas. 17,20% das amostras testadas pela qPCR foram positivas, significativamente mais do que detectado pela nPCR (13,98%). A t?cnica de qPCR foi mais espec?fica que a citologia, em virtude dos resultados falsopositivos obtidos pela microscopia ?ptica. A preval?ncia de A. platys em c?es da microrregi?o de Itagua? foi de 14,4%. C?es com menos de seis meses, infestados por carrapatos, que possam maior tempo restrito ao ambiente dom?stico e sem abrigo s?o fatores associados a infec??o por este hemoparasito em c?es na regi?o do estudo. Durante investiga??o de A. platys realizada em Cuba, 100 amostras de sangue foram coletadas de c?es residentes em quatro cidades localizadas nas prov?ncias de Habana e Mayabeque. Ao inspecionar os animais, carrapatos encontrados foram coletados, identificados e criteriosamente agrupados, formando um total de 49 pools. Amostras de DNA extra?das do sangue dos c?es e de carrapatos foram submetidas a nPCR (16S rDNA). Amostras positivas na nPCR foram tamb?m submetidas a PCR convencional (gene gltA), e os produtos foram sequenciados. Somente a esp?cie Rhipicephalus sanguineus sensu lato foi encontrada em c?es cubanos, e 10,2% (n=5/49) desses carrapatos somado aos 16,0% (n=16/100) de c?es foram considerados positivos para A. platys. Todas as sequ?ncias analisadas dos genes gltA e 16S rDNA, respectivamente, mostraram uma identidade de 99-100% com sequ?ncias de A. platys reportadas em outros pa?ses. A an?lise filogen?tica mostrou dois clusters definidos para o gene 16S rDNA e tr?s clusters definidos para o gene gltA. Com base no gene gltA, a sequ?ncia de amino?cidos deduzidos demonstrou dois pontos de muta??es n?o-sin?nimas nas posi??es 88 e 168 comparados com sequ?ncia de refer?ncia DQ525687. Um estudo preliminar sobre os aspectos epidemiol?gicos associados com a infec??o por A. platys demonstrou nenhuma associa??o estat?stica com as vari?veis avaliadas (p > 0,05). O presente estudo al?m de relatar a primeira evid?ncia de A. platys em ambos c?es e carrapatos em Cuba, tamb?m apresenta pela primeira vez o desenvolvimento de um novo m?todo de qPCR que contribui para o avan?o da pesquisa envolvendo A. platys. O estudo epidemiol?gico realizado no Brasil permitiu identificar fatores importantes na ocorr?ncia da anaplasmose canina, enquanto em Cuba, pode-se concluir que mais investiga??es s?o necess?rias para avaliar quais os fatores decisivos na transmiss?o e dispers?o de A. platys nesse pa?s.
author2 Massard, Carlos Luiz
author_facet Massard, Carlos Luiz
Silva, Claudia Bezerra da
author Silva, Claudia Bezerra da
author_sort Silva, Claudia Bezerra da
title Detec??o de Anaplasma platys em c?es e em carrapatos: padroniza??ode qPCR e an?lise epidemiol?gica no Estado do Rio de Janeiro, Brasil e na regi?o ocidental de Cuba
title_short Detec??o de Anaplasma platys em c?es e em carrapatos: padroniza??ode qPCR e an?lise epidemiol?gica no Estado do Rio de Janeiro, Brasil e na regi?o ocidental de Cuba
title_full Detec??o de Anaplasma platys em c?es e em carrapatos: padroniza??ode qPCR e an?lise epidemiol?gica no Estado do Rio de Janeiro, Brasil e na regi?o ocidental de Cuba
title_fullStr Detec??o de Anaplasma platys em c?es e em carrapatos: padroniza??ode qPCR e an?lise epidemiol?gica no Estado do Rio de Janeiro, Brasil e na regi?o ocidental de Cuba
title_full_unstemmed Detec??o de Anaplasma platys em c?es e em carrapatos: padroniza??ode qPCR e an?lise epidemiol?gica no Estado do Rio de Janeiro, Brasil e na regi?o ocidental de Cuba
title_sort detec??o de anaplasma platys em c?es e em carrapatos: padroniza??ode qpcr e an?lise epidemiol?gica no estado do rio de janeiro, brasil e na regi?o ocidental de cuba
publisher Universidade Federal Rural do Rio de Janeiro
publishDate 2017
url https://tede.ufrrj.br/jspui/handle/jspui/2107
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AT silvaclaudiabezerrada detectionofanaplasmaplatysindogsandticksstandardizationofqpcrandepidemiologicalanalysisinthestateofriodejaneirobrazilandinwesterncuba
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spelling ndltd-IBICT-oai-localhost-jspui-21072019-01-22T00:51:03Z Detec??o de Anaplasma platys em c?es e em carrapatos: padroniza??ode qPCR e an?lise epidemiol?gica no Estado do Rio de Janeiro, Brasil e na regi?o ocidental de Cuba Detection of Anaplasma platys in dogs and ticks: standardization of qPCR and epidemiological analysis in the State of Rio de Janeiro, Brazil and in western Cuba Silva, Claudia Bezerra da Massard, Carlos Luiz Santos, Huarrisson Azevedo Coelho, Irene da Silva Guedes, Daniel da Silva Barreira, Jairo Dias Macieira, Daniel Barros dogs molecular diagnostic phylogeny Anaplasma platys c?es diagn?stico molecular qPCR nested PCR filogenia Rhipicephalus sanguineus sensu lato Ci?ncias Biol?gicas Submitted by Celso Magalhaes (celsomagalhaes@ufrrj.br) on 2017-10-19T13:49:16Z No. of bitstreams: 1 2016 - Claudia Bezerra da Silva.pdf: 8032175 bytes, checksum: ef71dd2a0e7801e9000e116c822a3a00 (MD5) Made available in DSpace on 2017-10-19T13:49:16Z (GMT). No. of bitstreams: 1 2016 - Claudia Bezerra da Silva.pdf: 8032175 bytes, checksum: ef71dd2a0e7801e9000e116c822a3a00 (MD5) Previous issue date: 2016-03-11 Coordena??o de Aperfei?oamento de Pessoal de N?vel Superior - CAPES and investigate the circulation of this agent in dogs in the Itaguai microregion, Rio de Janeiro, Brazil, and dogs and ticks in two provinces of the island of Cuba, analyzing epidemiological aspects associated with infections caused by this bacterium in dogs. A new real-time polymerase chain reaction method (qPCR) was patterned to target the citrate synthase gene (gltA) for the identification of A. platys in naturally infected dogs. The primers and probe were designed to amplify a fragment of 84 base pairs based on gltA gene sequences of A. platys available in GenBank. 186 blood samples of dogs from Itaguai microregion, Rio de Janeiro, Brazil, were tested by qPCR. The same samples were tested by cytology and nested polymerase chain reaction (nPCR, 16S rDNA) to determine the performance of qPCR front of these techniques. 17.20% of the samples tested positive by qPCR were significantly more than that detected by nPCR (13.98%). The qPCR technique was more specific than cytology, due to false-positive results obtained by optical microscopy. The prevalence of A. platys in dogs from Itaguai microregion was 14.4%. Dogs less than six months, infested by ticks, that spend the most of the time restrict to domestic environment and without shelter are factors associated with infection by this hemoparasite in dogs in the study area. During research, A. platys held in Cuba, 100 blood samples were collected from residents dogs in four cities located in the provinces of Havana and Mayabeque. When inspecting the animals, found ticks were collected, identified and carefully grouped, forming a total of 49 pools. DNA extracted from blood samples from dogs and ticks were subjected nPCR (16S rDNA). Positive samples in nPCR were also subjected to conventional PCR (gltA gene), and the products were sequenced. Only the species Rhipicephalus sanguineus sensu lato was found in Cuban dogs and 10.2% (n=5/49) of these ticks added to 16.0% (n=16/100) dogs were considered positive for A. platys. All sequences analyzed of the gltA and 16S rDNA genes, respectively, showed a 99-100% identity with sequences from A. platys reported in other countries. Phylogenetic analysis showed two clusters defined for the 16S rDNA gene and three clusters defined for the gltA gene. Based on the gltA gene, the deduced amino acid sequence showed two points of non-synonymous mutations at positions 88 and 168 compared to the reference sequence DQ525687. A preliminary study on the epidemiological aspects associated with infection with A. platys showed no statistical association with the variables studied (p> 0.05). This study also to report the first evidence of A. platys in both dogs and ticks in Cuba also presents for the first time the development of a new qPCR method that contributes to the advancement of research involving A. platys. The epidemiological study in Brazil allowed us to identify significant factors in the occurrence of canine anaplasmosis, while in Cuba, it can be concluded that more research is needed to assess what the deciding factors in the transmission and spread of A. platys in that country. platys, e investigar a circula??o deste agente em c?es na microrregi?o de Itagua?, Rio de Janeiro, Brasil, e c?es e carrapatos em duas prov?ncias da ilha de Cuba, analisando aspectos epidemiol?gicos associados ? infec??o causada por esta bact?ria em c?es. Um novo m?todo de rea??o em cadeia da polimerase em tempo real (qPCR) foi padronizado com alvo no gene citrato sintase (gltA) para a identifica??o de A. platys em c?es naturalmente infectados. Os oligoiniciadores e a sonda foram desenhados para amplificar um fragmento de 84 pares de base baseado em sequ?ncias do gene gltA de A. platys dispon?veis no GenBank. 186 amostras de sangue de c?es da microrregi?o de Itagua?, Rio de Janeiro, Brasil, foram testados pela qPCR. As mesmas amostras foram testadas pela citologia e rea??o em cadeia da polimerase nested (nPCR, 16S rDNA) para determinar o desempenho da qPCR frente ? essas t?cnicas. 17,20% das amostras testadas pela qPCR foram positivas, significativamente mais do que detectado pela nPCR (13,98%). A t?cnica de qPCR foi mais espec?fica que a citologia, em virtude dos resultados falsopositivos obtidos pela microscopia ?ptica. A preval?ncia de A. platys em c?es da microrregi?o de Itagua? foi de 14,4%. C?es com menos de seis meses, infestados por carrapatos, que possam maior tempo restrito ao ambiente dom?stico e sem abrigo s?o fatores associados a infec??o por este hemoparasito em c?es na regi?o do estudo. Durante investiga??o de A. platys realizada em Cuba, 100 amostras de sangue foram coletadas de c?es residentes em quatro cidades localizadas nas prov?ncias de Habana e Mayabeque. Ao inspecionar os animais, carrapatos encontrados foram coletados, identificados e criteriosamente agrupados, formando um total de 49 pools. Amostras de DNA extra?das do sangue dos c?es e de carrapatos foram submetidas a nPCR (16S rDNA). Amostras positivas na nPCR foram tamb?m submetidas a PCR convencional (gene gltA), e os produtos foram sequenciados. Somente a esp?cie Rhipicephalus sanguineus sensu lato foi encontrada em c?es cubanos, e 10,2% (n=5/49) desses carrapatos somado aos 16,0% (n=16/100) de c?es foram considerados positivos para A. platys. Todas as sequ?ncias analisadas dos genes gltA e 16S rDNA, respectivamente, mostraram uma identidade de 99-100% com sequ?ncias de A. platys reportadas em outros pa?ses. A an?lise filogen?tica mostrou dois clusters definidos para o gene 16S rDNA e tr?s clusters definidos para o gene gltA. Com base no gene gltA, a sequ?ncia de amino?cidos deduzidos demonstrou dois pontos de muta??es n?o-sin?nimas nas posi??es 88 e 168 comparados com sequ?ncia de refer?ncia DQ525687. Um estudo preliminar sobre os aspectos epidemiol?gicos associados com a infec??o por A. platys demonstrou nenhuma associa??o estat?stica com as vari?veis avaliadas (p > 0,05). O presente estudo al?m de relatar a primeira evid?ncia de A. platys em ambos c?es e carrapatos em Cuba, tamb?m apresenta pela primeira vez o desenvolvimento de um novo m?todo de qPCR que contribui para o avan?o da pesquisa envolvendo A. platys. O estudo epidemiol?gico realizado no Brasil permitiu identificar fatores importantes na ocorr?ncia da anaplasmose canina, enquanto em Cuba, pode-se concluir que mais investiga??es s?o necess?rias para avaliar quais os fatores decisivos na transmiss?o e dispers?o de A. platys nesse pa?s. 2017-10-19T13:49:16Z 2016-03-11 info:eu-repo/semantics/publishedVersion info:eu-repo/semantics/doctoralThesis Silva, Claudia Bezerra da. Detec??o de Anaplasma platys em c?es e em carrapatos: padroniza??ode qPCR e an?lise epidemiol?gica no Estado do Rio de Janeiro, Brasil e na regi?o ocidental de Cuba. 2016. [109 f.]. Tese( PROGRAMA DE P?S-GRADUA??O EM CI?NCIAS VETERIN?RIAS) - Universidade Federal Rural do Rio de Janeiro, [Serop?dica-RJ] . https://tede.ufrrj.br/jspui/handle/jspui/2107 por Cap?tulo I VALIENTE-ECHEVERR?A, F.; LE?N, U.; GUTJAHR, C.; AZ?CAR, T. Anaplasma platys in dogs, Chile. Emerg. Infect. Dis. v.13, p.1392-1395, 2007. AGUIRRE, E.; TESOURO, M.A.; RUIZ, L.; AMUSATEGUI, I.; SAINZ, A. Genetic characterization of Anaplasma (Ehrlichia) platys in dogs in Spain. J. Vet. Med. B. Infect. Dis. Vet. Public Health. v.53, p.197-200, 2006. ANDERSON, B.E.; DAWSON, J.E.; JONES, D.C.; WILSON, K.H. Ehrlichia chaffeensis, a new species associated with human ehrlichiosis. J. Clin. Microbiol. v.29, p.2838-2842, 1991. ANDERSON, B.E.; GREENE, C.E.; JONES, D.C.; DAWSON, J.E. Ehrlichia ewingii sp. nov., the etiologic agent of canine granulocytic ehrlichiosis. Int. J. Syst. Bacteriol. v.42, P.299-302, 1992. ALBERNAZ, A.P.; MIRANDA, F.J.B.; MELO Jr., O.A.; MACHADO, J.A.; FAJARDO, H.V. Erliquiose canina em Campos dos Goytacazes, Rio de Janeiro, Brasil. Ci?nc. Anim. Bras. v.8, p.799-806, 2007. ALLEMAN R, COUTO G. 2006. Testing for tick borne diseases: How and when? Dispon?vel em: www.vet.ohio-state.edu/assets/pdf/hospital/bloodBank/wellness/research/TestingforTick BorneDiseases.pdf. Acessado em: 20 dezembro 2014. ALMEIDA, A.B.P.F.; DE PAULA, D.A.J.; DAHROUG, M.A.A.; FREITAS, A.G.; SILVA, J.N.; DUTRA, V.; NAKAZATO, L.; SOUSA, V.R.F. Ehrlichia canis and Anaplasma platys in ticks of dogs in Cuiaba, Mato Grosso. Semina: Ci. Agr. 33, 1123-1126, 2012. ALMOSNY, N.R.P. Ehrlichia canis (Donatien & Lestoquard, 1935): Avalia??o parasitol?gica, hematol?gica e bioqu?mica s?rica da fase aguda experimentalmente infectados, Serop?dica. 1998. 149p. Tese (Doutor addoe) Cc?uersso ed eg Pa?toss- Gradua??o em Medicina Veterin?ria-Parasitologia Veterin?ria, Universidade Federal Rural do Rio de Janeiro, Serop?dica, RJ. ANTOGNONI, M,T.; VERONESI, F.; MORGANTI, G.; MANGILI, V.; FRUGANTI, G.; MIGLIO, A. Natural infection of Anaplasma platys in dogs from Umbria region (Central Italy). Vet. Ital. v.50, p.49-56, 2014 APFALTER, P.; REISCHL, U.; HAMMERSCHLAG, M.R. In-house nucleic acid amplification assays in research: how much quality control is needed before one can rely upon the results? J. Clin. Microbiol. v.43, p.5835?5841, 2005. ARRAGA-ALVARADO, C.M.; QUROLLO, B.A.; PARRA, O.C.; BERRUETA, M.A.; HEGARTY, B.C.; BREITSCHWERDT, E.B. Case report: Molecular evidence of Anaplasma platys infection in two women from Venezuela. Am. J. Trop. Med. Hyg. v.91, 1161-1165, 2014. AYRES, M.; AYRES Jr., M.; AYRES, D.L.; SANTOS, A.A.S. BioEstat 5,0 - Aplica??es Estat?sticas nas ?reas das Ci?ncias Biol?gicas e M?dicas, Sociedade Civil Mamirau?, Tef?, 380p, 2007. AZEVEDO, F.D. Protocolos terap?uticos no tratamento da Erliquiose Monoc?tica Canina. 90p. Doutorado (Tese). Programa de P?s-gradua??o em Ci?ncias Veterin?rias, Universidade Federal Rural do Rio de Janeiro. 2013. 34 BAKER, D.C.; SIMPSON, M.; GAUNT, S.D.; CORSTVET, R.E. Acute Ehrlichia platys infection in the dog. Vet. Pathol. v.24, p.449-53, 1987. BALDRIDGE, G.D.; BURKHARDT, N.Y.; LABRUNA, M.B.; PACHECO, R.C.; PADDOCK, C.D.; WILLIAMSON, P.C.; BILLINGSLEY, P.M.; FELSHEIM, R.F.; KURTTI, T.J.; MUNDERLOH, U.G. Wide dispersal and possible multiple origins of lowcopy- number plasmids in Rickettsia species associated with blood-feeding arthropods. Appl. Env. Microbiol. v.76, p.1718-1731, 2010. BANETH, G.; HARRUS, S.; OHNONA, F.S.; SCHLESINGER, Y. Longitudinal quantification of Ehrlichia canis in experimental infection with comparison to natural infection. Vet. Microbiol. v.136, p.321-325, 2009. BARR, S.C. What to do with Ehrlichia canis/Anaplasma phagocytophylium positive cases. 2009. Dispon?vel em: http://veterinarycalendar.dvm360.com/what-do-with- ehrlichiacanisanaplasma- phagocytophylium-positive-cases-proceedings?id=&sk=&dat e=&pageID=3. Acessado em: 12 outubro 2014. BERAN, G.W. Handbook of zoonoses, section a: bacterial, rickettsial, chlamydial and mycotic. 2 ed. CRC Press: Boca Raton, 1994, 560p. BRAVO, N.; MU?OZ, C.; NAZAL, N.; SAAVEDRA, M.; MART?NEZ, G.; ARAYA, E.; APT, W.; ZULANTAY, I. 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Microbiol. v.51, p.1143- 1146, 2001. info:eu-repo/semantics/openAccess application/pdf Universidade Federal Rural do Rio de Janeiro Programa de P?s-Gradua??o em Ci?ncias Veterin?rias UFRRJ Brasil Instituto de Veterin?ria reponame:Biblioteca Digital de Teses e Dissertações da UFRRJ instname:Universidade Federal Rural do Rio de Janeiro instacron:UFRRJ