Fecha/hora: 13/06/2024 04:20:41

Biblioteca(s): 	INIA La Estanzuela.	
Fecha corriente: 	27/08/2020	
Fecha de la última actualización: 	05/09/2022	
Autoria: 	MACÍAS-RIOSECO, M.; SILVEIRA, C.S.; FRAGA, M.; CASAUX, M.L.; CABRERA, A.; FRANCIA, M.E.; REBOLLO, C.; MAYA, L.; ZARANTONELLI, L.; SUANES, A.; COLINA, R.; BUSCHIAZZO, A.; GIANNITTI, F.; RIET-CORREA, F.	
Afiliación: 	MELISSA MACÍAS RIOSECO, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay./Programa  de  Posgrado  en  Salud  Animal,  Facultad  de  Veterinaria,  Universidad  de  la  Republica, Montevideo,  Uruguay; CAROLINE DA SILVA SILVEIRA, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay./Programa de Posgrado en Salud Animal, Facultad de Veterinaria, Universidad de la Republica, Montevideo, Uruguay.; MARTIN FRAGA COTELO, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; MARÍA LAURA CASAUX, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay./Programa de Posgrado en Salud Animal, Facultad de Veterinaria, Universidad de la Republica, Montevideo, Uruguay.; ANDRÉS CABRERA, Unidad de Biología Molecular, Institut Pasteur de Montevideo, Mataojo 2020, Montevideo, 11400, Uruguay.; MARÍA E. FRANCIA, Laboratory of Apicomplexan Biology, Institut Pasteur de Montevideo, Mataojo 2020, Montevideo, 11400, Uruguay.; CARLOS REBOLLO, Unidad de Biología Molecular, Institut Pasteur de Montevideo, Mataojo 2020, Montevideo, 11400, Uruguay.; LETICIA MAYA, Laboratorio de Virología Molecular, Centro Universitario Regional Litoral Norte, Universidad de la República, Gral Fructuoso Rivera 1350, Salto, 50000, Uruguay.; LETICIA ZARANTONELLI, Unidad Mixta Pasteur, Instituto Nacional de Investigación Agropecuaria, Institut Pasteur de Montevideo, Mataojo 2020, Montevideo, 11400, Uruguay.; ALEJANDRA SUANES, División de Laboratorios Veterinarios, Ministerio de Ganadería, Agricultura y Pesca, Constituyente 1476, Montevideo, 11200, Uruguay.; RODNEY COLINA, Laboratorio de Virología Molecular, Centro Universitario Regional Litoral Norte, Universidad de la República, Gral Fructuoso Rivera 1350, Salto, 50000, Uruguay .; ALEJANDRO BUSCHIAZZO, Laboratorio de Microbiología Molecular y Estructural, Institut Pasteur de Montevideo, Mataojo 2020, Montevideo, 11400, Uruguay.; FEDERICO GIANNITTI, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; FRANKLIN RIET-CORREA AMARAL, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay.	
Título: 	Causes of abortion in dairy cows in Uruguay. [Causas de aborto em bovinos de leite no Uruguai].	
Año de publicación: 	2020	
Fuente/Imprenta: 	Pesquisa Veterinaria Brasileira, 1 May 2020, Volume 40, Issue 5, Pages 325-332. OPEN ACCESS. DOI: https://doi.org/10.1590/1678-5150-pvb-6550	
DOI: 	10.1590/1678-5150-pvb-6550	
Idioma: 	Español	
Notas: 	Article history: Received on December 3, 2019./Accepted for publication on December 26, 2019.  This research was financially supported by Agencia Nacional de Investigación e Innovación (ANII), grant FSSA_X_2014_1_105696. The authors thank Yisell Perdomo, Cecilia Monesiglio, Anderson Saravia,Bruno Lopez, and all graduate students from the animal health platform at INIA, Jennifer McKenna from UW, Francisco Uzal, Karen Sverlow and Juliann Beingesser from CAHFS-UC Davis for valuable assistance. We are grateful to Luis Corbellini, for his keen and valuable suggestions preparing the manuscript, Ximena Salaberry from the Division de Laboratorios Veterinarios (DILAVE) of the Uruguayan ?Ministerio de Ganadería, Agricultura y Pesca (MGAP),Santiago Mirazo from UdelaR, and Cecilia Nieves and Camila Hamond from the Institut Pasteur, Montevideo.	
Contenido: 	Abstract: A case series study was conducted to determine the frequency of causes of abortion in dairy cattle in Uruguay. The sample size of 102 cases was composed of 53 fetuses, 35 fetuses with placentas, and 14 placentas without an associated fetus. All cases underwent gross
and microscopic pathologic examinations as well as microbiological and serological testing. The etiology was determined in 54 (53%) of cases, 51 of which were caused by infectious agents. Within the observed 102 cases, 30 (29%) were caused by Neospora caninum, six (6%) by Coxiella burnetii and two (2%) by Campylobacter fetus subsp. venerealis. Bovine Parainfluenza-3 virus and Salmonella enterica serovar Newport caused one abortion each. Opportunistic bacteria (Escherichia coli, Streptococcus sp., Staphylococcus sp., Mannheimia sp., Trueperella pyogenes, and Providencia stuartii) were associated with 11 abortions. In two cases the fetal death was attributed to dystocia, and in one case the fetus had a congenital mesothelioma. Bovine viral diarrhea virus (BVDV) infection was identified in three fetuses; two of which were co-infected with and had typical lesions of N. caninum. No lesions were observed in the other fetus infected by BVDV. Leptospira interrogans was identified in one fetus
without lesions. Despite the relatively low overall success rate in establishing an etiological diagnosis in cases of abortion in cattle, a systemic workup of bovine abortion is necessary to establish prevention and control strategies. This also facilitates monitoring and surveillance of reproductive diseases in dairy cattle, some of which represent a risk to public health.

Resumo: Uma série de casos foi estudada para determinar a frequência de causas do aborto em bovinos leiteiros no Uruguai. A amostra, de 102 casos, foi composta por 53 fetos, 35 fetos com placentas e 14 placentas sem feto associado. Todos os casos foram submetidos a exames patológicos macroscópicos e microscópicos, além de testes microbiológicos e sorológicos.A etiologia foi determinada em 54 (53%) dos casos, 51 dos quais foram causados por agentes infecciosos. Nos 102 casos observados, 30 (29%) foram causados por Neospora caninum, seis (6%) por Coxiella burnetii e dois (2%) por Campylobacter fetus subsp. venerealis. O vírus da Parainfluenza-3 e Salmonella enterica serovar Newport causaram um aborto cada. Bactérias oportunistas (Escherichia coli, Streptococcus sp., Staphylococcus sp., Mannheimia sp., Trueperella pyogenes
e Providencia stuartii) foram associadas a 11 abortos. Em dois casos, a morte fetal foi atribuída a distocia e, em um caso, o feto apresentava mesotelioma congênito. A infecção pelo vírus da diarreia viral bovina (BVDV) foi identificada em três fetos; dois dos quais foram co-infectados e apresentavam lesões típicas de N. caninum. Não foram observadas lesões no outro feto infectado pelo BVDV. Leptospira interrogans foi
identificada em um feto sem lesões. Apesar da relativamente baixa taxa de sucesso no diagnóstico etiológico nos casos de aborto em bovinos, é necessário o diagnóstico sistemático dos abortos para estabelecer estratégias de prevenção e controle. Isso também facilita o monitoramento e a vigilância de doenças reprodutivas em bovinos leiteiros, algumas das quais representam um risco para a saúde pública.	
Palabras-Clave: 	ABORTO BOVINO; BOVINE ABORTION; BOVINOS DE LEITE; CAMPYLOBACTER FETUS; CATTLE; COXIELLA BURNETII; DAIRY CATTLE; NEOSPORA CANINUM; PLATAFORMA DE SALUD ANIMAL; URUGUAI.	
Thesagro: 	BOVINOS DE LECHE; URUGUAY.	
Categoría del tema: 	L01 Ganadería	
URL: 	http://www.ainfo.inia.uy/digital/bitstream/item/16698/1/Pesq.-Vet.-Bras.-405p.325-332-May-2020.pdf
https://www.scielo.br/pdf/pvb/v40n5/1678-5150-pvb-40-05-325.pdf	
Registro original: 	INIA La Estanzuela (LE)	
Ejemplares: 	LE - (103169-1) - PXI - AP - DD - PP/Pesquisa Veterinaria Brasileira/2020 -  -  - DIS