Epidemiolog?a y caracterizaci?n molecular de la cryptosporidiosis bovina en sistemas de crianza artificial de la cuenca lechera del departamento General San Mart?n, C?rdoba

Lombardelli, Joaqu?n Andr?s

Epidemiolog?a y caracterizaci?n molecular de la cryptosporidiosis bovina en sistemas de crianza artificial de la cuenca lechera del departamento General San Mart?n, C?rdoba

Detalhes bibliográficos
Ano de defesa:	2020
Autor(a) principal:	Lombardelli, Joaqu?n Andr?s
Orientador(a):	Tiranti, Karina Ivana
Banca de defesa:	Reynoso, Mar?a Marta, Schnittger, Leonhard, Rossanigo, Carlos Esteban
Tipo de documento:	Tese
Tipo de acesso:	Acesso aberto
Idioma:	por
Instituição de defesa:	Universidade Federal Rural do Rio de Janeiro
Programa de Pós-Graduação:	Programa de P?s-Gradua??o em Ci?ncia, Tecnologia e Inova??o em Agropecu?ria
Departamento:	Pr?-Reitoria de Pesquisa e P?s-Gradua??o
País:	Brasil
Palavras-chave em Espanhol:	Cryptosporidium parvum bovinos de lecheria parasitologia animal
Área do conhecimento CNPq:	Parasitologia
Link de acesso:	https://tede.ufrrj.br/jspui/handle/jspui/6711
Resumo:	Abstract n?o dispon?vel no arquivo fornecido.

Metadados do item

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network_name_str	Biblioteca Digital de Teses e Dissertações da UFRRJ
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spelling	Tiranti, Karina IvanaMcIntosh, DouglasReynoso, Mar?a MartaSchnittger, LeonhardRossanigo, Carlos EstebanLombardelli, Joaqu?n Andr?s2023-07-05T18:49:15Z2020-10-29LOMBARDELLI, Joaqu?n Andr?s. Epidemiolog?a y caracterizaci?n molecular de la cryptosporidiosis bovina en sistemas de crianza artificial de la cuenca lechera del departamento General San Mart?n, C?rdoba. 2020. 70 f. Tese (Doutorado em Ci?ncia, Tecnologia e Inova??o em Agropecu?ria) - Facultad de Agronom?a y Veterinaria/Pr?-Reitoria de Pesquisa e P?s-Gradua??o, Universidad Nacional de Rio Cuarto/Universidade Federal Rural do Rio de Janeiro, Argentina/Brasil, 2020.https://tede.ufrrj.br/jspui/handle/jspui/6711Abstract n?o dispon?vel no arquivo fornecido.La crianza de terneros es uno de los aspectos de mayor relevancia en el proceso de producci?n de leche, cumpliendo primariamente la funci?n de reposici?n de las vacas que anualmente son eliminadas del rodeo. La diarrea neonatal de los terneros es uno de los principales problemas de salud en tambos en todo el mundo. La cryptosporidiosis bovina es una de las principales causas de diarrea neonatal en terneros de tambos. Las principales especies de Cryptosporidium que infectan a los bovinos son Cryptosporidium parvum, Cryptosporidium bovis, Cryptosporidium andersoni y Cryptosporidium ryanae. Entre ellas, C. parvum y C. bovis son las especies m?s com?nmente identificadas en terneros pre-destete. Los tama?os de los ooquistes de las especies de Cryptosporidium que afectan a los terneros de tambo son similares, por lo tanto, es indispensable para su clasificaci?n y determinaci?n utilizar t?cnicas de biolog?a molecular. Es por todo esto que se pretende caracterizar molecularmente la importancia del g?nero Cryptosporidium spp. en terneros de la cuenca lechera del Departamento General San Mart?n (C?rdoba), evaluar los factores de riesgo de la cryptosporidiosis, el patr?n espacial presente respecto del tipo de suelo y determinar la transmisibilidad hasta los 30 d?as de vida. Como primer objetivo se plante? realizar la optimizaci?n de la t?cnica molecular de reacci?n en cadena de la polimerasa (PCR) para identificar a nivel molecular las especies de Cryptosporidium. Para concretar el mismo se probaron tres m?todos de extracci?n de ADN, se realizaron diversos ensayos para optimizar la t?cnica de PCR y se realizaron an?lisis de RFLP-PCR para muestras con alta y baja intensidad de infecci?n. La t?cnica de extracci?n de ADN que utiliza un primer paso de congelado y descongelado de las muestras result? ser el m?todo m?s conveniente para ser utilizado. Fue necesario utilizar una concentraci?n de 1,5mM de MgCl2 y una temperatura de anidaci?n de 58?C. La t?cnica result? ser altamente dependiente de la intensidad de infestaci?n de ooquistes y demanda que se realicen modificaciones cuando son de baja o alta intensidad de infestaci?n. El segundo objetivo fue caracterizar las especies de Cryptosporidium presentes, calcular la prevalencia global y describir la asociaci?n entre los factores de riesgo de los terneros de tambo y la presencia de Cryptosporidium parvum en terneros. En cada uno de los 54 establecimiento visitados se extrajo una muestra de materia fecal a todos los terneros menores de 60 d?as de vida. Se utiliz? una encuesta para recopilar datos acerca del manejo de los terneros con el fin de identificar los factores de riesgo. Se determin? la presencia de ooquistes de Cryptosporidium spp. mediante la tinci?n modificada en fr?o de Ziehl-Neelsen. Posteriormente, se determin? cual era la especie de Cryptosporidium presente en las muestras que resultaron positivas a trav?s de RFLP-PCR. Se calcul? la prevalencia de C. parvum global para todos los terneros muestreados y la prevalencia por establecimiento. Adem?s, se estudi? la asociaci?n entre cada uno de los factores del ternero y la presencia en heces de C. parvum. La especie de Cryptosporidium prevalente en terneros menores de 60 d?as es C. parvum, resultando una prevalencia global de 25,5%. Las prevalencias m?s altas se observaron en terneros de dos y tres semanas de vida. Los terneros parasitados con C. parvum fueron asociados fuertemente con el riesgo de presentar diarrea, resaltando la importancia de C. parvum como uno de los principales microorganismos responsables de la diarrea neonatal en terneros de tambos del ?rea de estudio. Medidas de manejo en los establecimientos como reducir el tiempo de permanencia de los terneros junto a sus madres despu?s de nacer fue una medida con una tendencia a disminuir el riesgo de sufrir cryptosporidiosis en terneros de tambos. El tercer objetivo consisti? en describir la distribuci?n espacial y de conglomerados de C. parvum en sistemas de crianza artificial y su relaci?n con el tipo de suelo. Para esto se registraron las coordenadas geogr?ficas utilizando un GPS Garmin en cada establecimiento visitado. El an?lisis espacial consisti? en la descripci?n de la prevalencia de C. parvum para cada establecimiento por medio de un mapa de puntos en el sistema de informaci?n geogr?fica QGIS 3.6.0. Se realiz? un an?lisis visual de la superposici?n en el mapa de los establecimientos afectados y el tipo de suelo que ?stos poseen. Adem?s, el an?lisis espacial se utiliz? para identificar y localizar conglomerados espaciales significativos para la prevalencia predial de C. parvum en la zona de estudio. Todos los an?lisis espaciales fueron realizados en el programa SaTScan? v 9.4.4. La prevalencia de C. parvum observada fue muy variable entre los establecimientos. Dos conglomerados estad?sticamente significativos fueron determinados. En uno de ellos, el riesgo de tener establecimientos con altas prevalencias fue casi dos veces mayor (RR: 1,64, p: 0,008). En el otro conglomerado, se observ? que el riesgo de encontrar establecimientos con baja prevalencia es cuatro veces mayor (RR: 0,26, p: 0,003). El suelo que poseen los establecimientos ubicados en el primer conglomerado son imperfectamente drenados presentando una moderada salinidad lo que genera una pobre vegetaci?n en los espacios donde se alojan los terneros.Submitted by Jorge Silva (jorgelmsilva@ufrrj.br) on 2023-07-05T18:49:15Z No. of bitstreams: 1 2020 - Joaqu?n Andres Lombardelli.Pdf: 2252978 bytes, checksum: 221c7492f22784eb34ef6966d0731e6c (MD5)Made available in DSpace on 2023-07-05T18:49:15Z (GMT). No. of bitstreams: 1 2020 - Joaqu?n Andres Lombardelli.Pdf: 2252978 bytes, checksum: 221c7492f22784eb34ef6966d0731e6c (MD5) Previous issue date: 2020-10-29application/pdfhttps://tede.ufrrj.br/retrieve/73753/2020%20-%20Joaqu%c3%adn%20Andres%20Lombardelli.Pdf.jpgporUniversidade Federal Rural do Rio de JaneiroPrograma de P?s-Gradua??o em Ci?ncia, Tecnologia e Inova??o em Agropecu?riaUFRRJBrasilPr?-Reitoria de Pesquisa e P?s-Gradua??oAdamu, H., Petros, B., Zhang, G., Kassa, H., Amer, S. y Ye, J. 2014. 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Weaver, D.M., Tyler, J.W., VanMetre, D.C., Hostetler, D.E., Barrington, G. 2000. Passive Transfer of Colostral Immunoglobulins in Calves. J. Vet. Intern. Med. 14, 569?577 Wielinga PR, de Vries A, van der Goot TH, Mank T, Mars MH, Kortbeek LM et al (2008) Molecular epidemiology of Cryptosporidium in humans and cattle in The Netherlands. Int J Parasitol 38:809-817. doi: 10.1016/j.ijpara.2007.10.014. Xiao, L., Morgan, U.M., Limor, J., Escalante, A., Arrowood, M., Shulaw, W.,Thompson, R.C.A., Fayer, R., Lal, A.A. 1999. Genetic diversity within Cryptosporidium parvum and related Cryptosporidium species. Appl. Environ. Microbiol. 64 (8), 3386- 3391. Xiao, L., Zhou, L., Santin, M., Yang, W., Fayer, R. 2007. Distribution of Cryptosporidium parvum subtypes in calves in eastern United States. Parasitol. Res. 100, 701-706. Xiao, L. y Feng, Y., 2008. Zoonotic cryptosporidiosis. FEMS Immunol. Med.Microbiol. 52, 309?323. Xiao, L. y Fayer, R. 2008. Molecular characterisation of species and genotypes of Cryptosporidium and Giardia and assessmentof zoonotic transmission. I J Par. 38: 1239?1255. Xiao, L. 2010. Molecular epidemiology of cryptosporidiosis: an update. Exp. Parasitol. 124, 80?89. Young, K.H., Bullock, S.L., Melvin, D.M., Spruill, C.L. 1979. Ethyl acetate as a substitute for diethylether in the formalin ether sedimentation technique. J. Clin. Microb. 10, 852-853. Zambriski, J.A., Nydam, D.V., Bowman, D.D., Bellosa, M.L., Burton, A.J., Linden, T.C., Liotta, J.L., Ollivett, T.L., Tondello-Martins, L. y Mohammed, H.O. 2013a. Description of fecal shedding of Cryptosporidium parvum oocysts is experimentally challenged dairy calves. Parasitol Res 112:1247?1254 Zambriski, J.A., Nydam, D.V., Wilcox, Z.J., Bowman, D.D., Mohammed, H.O. y Liotta, J.L. 2013b Cryptosporidium parvum: determination of ID50 and the dose response relationship in experimentally challenged dairy calves. 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dc.title.por.fl_str_mv	Epidemiolog?a y caracterizaci?n molecular de la cryptosporidiosis bovina en sistemas de crianza artificial de la cuenca lechera del departamento General San Mart?n, C?rdoba
title	Epidemiolog?a y caracterizaci?n molecular de la cryptosporidiosis bovina en sistemas de crianza artificial de la cuenca lechera del departamento General San Mart?n, C?rdoba
spellingShingle	Epidemiolog?a y caracterizaci?n molecular de la cryptosporidiosis bovina en sistemas de crianza artificial de la cuenca lechera del departamento General San Mart?n, C?rdoba Lombardelli, Joaqu?n Andr?s Cryptosporidium parvum bovinos de lecheria parasitologia animal Parasitologia
title_short	Epidemiolog?a y caracterizaci?n molecular de la cryptosporidiosis bovina en sistemas de crianza artificial de la cuenca lechera del departamento General San Mart?n, C?rdoba
title_full	Epidemiolog?a y caracterizaci?n molecular de la cryptosporidiosis bovina en sistemas de crianza artificial de la cuenca lechera del departamento General San Mart?n, C?rdoba
title_fullStr	Epidemiolog?a y caracterizaci?n molecular de la cryptosporidiosis bovina en sistemas de crianza artificial de la cuenca lechera del departamento General San Mart?n, C?rdoba
title_full_unstemmed	Epidemiolog?a y caracterizaci?n molecular de la cryptosporidiosis bovina en sistemas de crianza artificial de la cuenca lechera del departamento General San Mart?n, C?rdoba
title_sort	Epidemiolog?a y caracterizaci?n molecular de la cryptosporidiosis bovina en sistemas de crianza artificial de la cuenca lechera del departamento General San Mart?n, C?rdoba
author	Lombardelli, Joaqu?n Andr?s
author_facet	Lombardelli, Joaqu?n Andr?s
author_role	author
dc.contributor.advisor1.fl_str_mv	Tiranti, Karina Ivana
dc.contributor.advisor-co1.fl_str_mv	McIntosh, Douglas
dc.contributor.referee1.fl_str_mv	Reynoso, Mar?a Marta
dc.contributor.referee2.fl_str_mv	Schnittger, Leonhard
dc.contributor.referee3.fl_str_mv	Rossanigo, Carlos Esteban
dc.contributor.author.fl_str_mv	Lombardelli, Joaqu?n Andr?s
contributor_str_mv	Tiranti, Karina Ivana McIntosh, Douglas Reynoso, Mar?a Marta Schnittger, Leonhard Rossanigo, Carlos Esteban
dc.subject.spa.fl_str_mv	Cryptosporidium parvum bovinos de lecheria parasitologia animal
topic	Cryptosporidium parvum bovinos de lecheria parasitologia animal Parasitologia
dc.subject.cnpq.fl_str_mv	Parasitologia
description	Abstract n?o dispon?vel no arquivo fornecido.
publishDate	2020
dc.date.issued.fl_str_mv	2020-10-29
dc.date.accessioned.fl_str_mv	2023-07-05T18:49:15Z
dc.type.status.fl_str_mv	info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv	info:eu-repo/semantics/doctoralThesis
format	doctoralThesis
status_str	publishedVersion
dc.identifier.citation.fl_str_mv	LOMBARDELLI, Joaqu?n Andr?s. Epidemiolog?a y caracterizaci?n molecular de la cryptosporidiosis bovina en sistemas de crianza artificial de la cuenca lechera del departamento General San Mart?n, C?rdoba. 2020. 70 f. Tese (Doutorado em Ci?ncia, Tecnologia e Inova??o em Agropecu?ria) - Facultad de Agronom?a y Veterinaria/Pr?-Reitoria de Pesquisa e P?s-Gradua??o, Universidad Nacional de Rio Cuarto/Universidade Federal Rural do Rio de Janeiro, Argentina/Brasil, 2020.
dc.identifier.uri.fl_str_mv	https://tede.ufrrj.br/jspui/handle/jspui/6711
identifier_str_mv	LOMBARDELLI, Joaqu?n Andr?s. Epidemiolog?a y caracterizaci?n molecular de la cryptosporidiosis bovina en sistemas de crianza artificial de la cuenca lechera del departamento General San Mart?n, C?rdoba. 2020. 70 f. Tese (Doutorado em Ci?ncia, Tecnologia e Inova??o em Agropecu?ria) - Facultad de Agronom?a y Veterinaria/Pr?-Reitoria de Pesquisa e P?s-Gradua??o, Universidad Nacional de Rio Cuarto/Universidade Federal Rural do Rio de Janeiro, Argentina/Brasil, 2020.
url	https://tede.ufrrj.br/jspui/handle/jspui/6711
dc.language.iso.fl_str_mv	por
language	por
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Epidemiolog?a y caracterizaci?n molecular de la cryptosporidiosis bovina en sistemas de crianza artificial de la cuenca lechera del departamento General San Mart?n, C?rdoba

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