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Bibliographic Details
Main Author:	Leoncio Primera
Format:	Artículo científico
Language:	es
Published:	Universidad del Zulia 2016
Subjects:	Veterinaria Abscesos ganglios en cebolla hiperplasia linfoide Corynebacterium pseudotuberculosis
Online Access:	https://www.redalyc.org/articulo.oa?id=95944832003 https://www.redalyc.org/journal/959/95944832003/ https://www.redalyc.org/journal/959/95944832003/html/ https://www.redalyc.org/journal/959/95944832003/95944832003.epub https://www.redalyc.org/journal/959/95944832003/movil
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LINFADENITIS CASEOSA EN REBAÑOS OVINOS DE LA PENÍNSULA DE PARAGUANÁ, MUNICIPIO FALCÓN, ESTADO FALCÓN, VENEZUELA Leoncio Primera Julio Zambrano Elizabeth Boggiano Marinés Vera Lilia Carrero Carmen Chirino-Zárraga Veterinaria Abscesos ganglios en cebolla hiperplasia linfoide Corynebacterium pseudotuberculosis La linfadenitis caseosa es una enfermedad causada por Corynebacterium pseudotuberculosis y en pequeños rumiantes compromete la productividad de los rebaños. El objetivo de este trabajo consistió en describir la linfadenitis caseosa en rebaños ovinos del municipio Falcón de la Península de Paraguaná, Venezuela, con la caracterización del agente causal, las manifestaciones anatomopatológicas asociadas y con registro de factores asociados de posible interés epidemiológico. La investigación fue de tipo exploratoria y transversal y se desarrolló en tres etapas, se realizaron visitas de campo para seleccionar intencionalmente las fincas (29) y los animales, colectándose 13 muestras de secreción purulenta de lesiones en linfonodos superficiales, luego se efectuaron los estudios bacteriológicos en el laboratorio de Microbiología Veterinaria de la Universidad Nacional Experimental “Francisco de Miranda”; además, se seleccionaron cuatro individuos con diagnóstico etiológico de C. pseudotuberculosis para la realización de necropsias y estudios anatomopatológicos. El principal microorganismo aislado fue C. pseudotuberculosis (76,9%) y otros en menor proporción ( Trueperella pyogenes, Staphylococcus aureus y Sphingobacterium multivorum) ; se encontraron lesiones en ganglios superficiales, siendo el mandibular el más afectado (60%), que junto al parotídeo fueron los únicos en donde se detectó incremento del tamaño durante el examen macroscópico (P<0,05). Microscópicamente se registró presencia de granulomas caseosos con necrosis y centro eosinofílico, edema, hiperplasia de folículos linfoides rodeados de tejido fibroso, formando un laminado concéntrico solo visible con aumento 40X. Se detectó la enfermedad en las parroquias Pueblo Nuevo, Baraived, Jadacaquiva y El Vínculo, albergando la última 60% de los casos y la finca con mayor positividad (3%). El confinamiento geográfico y deficiencia en la asistencia veterinaria fueron comunes entre los predios en donde se aisló C. pseudotuberculosis, aunado al escaso conocimiento para el correcto manejo de los animales enfermos. Esta investigación representa el primer reporte de linfadenitis caseosa en rebaños ovinos del noroccidente venezolano. 2016 artículo científico 0798-2259 https://www.redalyc.org/articulo.oa?id=95944832003 https://www.redalyc.org/journal/959/95944832003/ https://www.redalyc.org/journal/959/95944832003/html/ https://www.redalyc.org/journal/959/95944832003/95944832003.epub https://www.redalyc.org/journal/959/95944832003/movil es http://www.redalyc.org/revista.oa?id=959 Revista Científica application/pdf Universidad del Zulia Revista Científica (República Bolivariana de Venezuela) Num.1 Vol.XXVI

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