USO DE LA REV-1 EN EL CONTROL DE LA BRUCELOSIS OVINA EN UNA EMPRESA OVEJERA DEL PERÚ

USO DE LA REV-1 EN EL CONTROL DE LA BRUCELOSIS OVINA EN UNA EMPRESA OVEJERA DEL PERÚ

In 1996, after a 5 year hiatus, the use of the Rev-1 vaccine was reintroduced to control ovine brucellosis (Brucella ovis) in a large sheep company of the central Peruvian Andes, and by the year 2000, 86.3% of the rams (3,284 of 3,804) and 100% of the young males (n=1,811) were vaccinated. During the shearing campaign for year 2000, testicles of the entire male breeding population (n=5,615) were examined manually and 320 blood samples (214 rams and 106 yearlings) were taken for AGID testing to determine the presence of Brucella ovis antibodies. Epididymitis lesions were found in 89.4 x 10,000 of the rams and 38.6 x 10,000 of the yearlings, compared to 817 x 10,000 for rams and 214 x 10,000 for yearlings prior to reintroduction of Rev-1 vaccination. The progressive reduction in epididymitis was directly related to vaccination. The level of infection was found 1,186.4 x 10,000 in 1996 decreasing to 531.2 x 10,000 in 2000, but infection levels remained high in the vaccinated population (635.8 x 10,000). Clinical expression of the disease was 38.5 x 10,000 in unvaccinated males compared to 97.4 x 10,000 in vaccinated animals, but infection rates were considerably lower in vaccinated (635.8 x 10,000) than in unvaccinated (1,219 x 10,000) males. These results clearly demonstrate the efficaciousness of Rev-1 in controlling epididymitis in rams. Combined use of the Rev-1 vaccine with periodic clinical examinations, annual serological tests and the elimination of all reactors is recommended, but vaccination alone at a national level would help in controlling this highly prevalent disease in the Peruvian sheep population.

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Main Authors: Rondón E., Juan, Rosadio A., Raúl
Format: Digital revista
Language:spa
Published: Universidad Nacional Mayor de San Marcos, Facultad de Medicina Veterinaria 2002
Online Access:https://revistasinvestigacion.unmsm.edu.pe/index.php/veterinaria/article/view/1706
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record_format ojs
institution UNMSM
collection OJS
country Perú
countrycode PE
component Revista
access En linea
databasecode rev-rivep
tag revista
region America del Sur
libraryname Biblioteca de la Facultad de Medicina Veterinaria
language spa
format Digital
author Rondón E., Juan
Rosadio A., Raúl
spellingShingle Rondón E., Juan
Rosadio A., Raúl
USO DE LA REV-1 EN EL CONTROL DE LA BRUCELOSIS OVINA EN UNA EMPRESA OVEJERA DEL PERÚ
author_facet Rondón E., Juan
Rosadio A., Raúl
author_sort Rondón E., Juan
title USO DE LA REV-1 EN EL CONTROL DE LA BRUCELOSIS OVINA EN UNA EMPRESA OVEJERA DEL PERÚ
title_short USO DE LA REV-1 EN EL CONTROL DE LA BRUCELOSIS OVINA EN UNA EMPRESA OVEJERA DEL PERÚ
title_full USO DE LA REV-1 EN EL CONTROL DE LA BRUCELOSIS OVINA EN UNA EMPRESA OVEJERA DEL PERÚ
title_fullStr USO DE LA REV-1 EN EL CONTROL DE LA BRUCELOSIS OVINA EN UNA EMPRESA OVEJERA DEL PERÚ
title_full_unstemmed USO DE LA REV-1 EN EL CONTROL DE LA BRUCELOSIS OVINA EN UNA EMPRESA OVEJERA DEL PERÚ
title_sort uso de la rev-1 en el control de la brucelosis ovina en una empresa ovejera del perú
description In 1996, after a 5 year hiatus, the use of the Rev-1 vaccine was reintroduced to control ovine brucellosis (Brucella ovis) in a large sheep company of the central Peruvian Andes, and by the year 2000, 86.3% of the rams (3,284 of 3,804) and 100% of the young males (n=1,811) were vaccinated. During the shearing campaign for year 2000, testicles of the entire male breeding population (n=5,615) were examined manually and 320 blood samples (214 rams and 106 yearlings) were taken for AGID testing to determine the presence of Brucella ovis antibodies. Epididymitis lesions were found in 89.4 x 10,000 of the rams and 38.6 x 10,000 of the yearlings, compared to 817 x 10,000 for rams and 214 x 10,000 for yearlings prior to reintroduction of Rev-1 vaccination. The progressive reduction in epididymitis was directly related to vaccination. The level of infection was found 1,186.4 x 10,000 in 1996 decreasing to 531.2 x 10,000 in 2000, but infection levels remained high in the vaccinated population (635.8 x 10,000). Clinical expression of the disease was 38.5 x 10,000 in unvaccinated males compared to 97.4 x 10,000 in vaccinated animals, but infection rates were considerably lower in vaccinated (635.8 x 10,000) than in unvaccinated (1,219 x 10,000) males. These results clearly demonstrate the efficaciousness of Rev-1 in controlling epididymitis in rams. Combined use of the Rev-1 vaccine with periodic clinical examinations, annual serological tests and the elimination of all reactors is recommended, but vaccination alone at a national level would help in controlling this highly prevalent disease in the Peruvian sheep population.
publisher Universidad Nacional Mayor de San Marcos, Facultad de Medicina Veterinaria
publishDate 2002
url https://revistasinvestigacion.unmsm.edu.pe/index.php/veterinaria/article/view/1706
work_keys_str_mv AT rondonejuan usodelarev1enelcontroldelabrucelosisovinaenunaempresaovejeradelperu
AT rosadioaraul usodelarev1enelcontroldelabrucelosisovinaenunaempresaovejeradelperu
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spelling oai:ojs.csi.unmsm:article-17062020-03-11T00:13:26Z USO DE LA REV-1 EN EL CONTROL DE LA BRUCELOSIS OVINA EN UNA EMPRESA OVEJERA DEL PERÚ USO DE LA REV-1 EN EL CONTROL DE LA BRUCELOSIS OVINA EN UNA EMPRESA OVEJERA DEL PERÚ Rondón E., Juan Rosadio A., Raúl Brucella ovis epididimitis vacunación Rev 1 Brucella ovis epididymitis vaccination Rev-1 In 1996, after a 5 year hiatus, the use of the Rev-1 vaccine was reintroduced to control ovine brucellosis (Brucella ovis) in a large sheep company of the central Peruvian Andes, and by the year 2000, 86.3% of the rams (3,284 of 3,804) and 100% of the young males (n=1,811) were vaccinated. During the shearing campaign for year 2000, testicles of the entire male breeding population (n=5,615) were examined manually and 320 blood samples (214 rams and 106 yearlings) were taken for AGID testing to determine the presence of Brucella ovis antibodies. Epididymitis lesions were found in 89.4 x 10,000 of the rams and 38.6 x 10,000 of the yearlings, compared to 817 x 10,000 for rams and 214 x 10,000 for yearlings prior to reintroduction of Rev-1 vaccination. The progressive reduction in epididymitis was directly related to vaccination. The level of infection was found 1,186.4 x 10,000 in 1996 decreasing to 531.2 x 10,000 in 2000, but infection levels remained high in the vaccinated population (635.8 x 10,000). Clinical expression of the disease was 38.5 x 10,000 in unvaccinated males compared to 97.4 x 10,000 in vaccinated animals, but infection rates were considerably lower in vaccinated (635.8 x 10,000) than in unvaccinated (1,219 x 10,000) males. These results clearly demonstrate the efficaciousness of Rev-1 in controlling epididymitis in rams. Combined use of the Rev-1 vaccine with periodic clinical examinations, annual serological tests and the elimination of all reactors is recommended, but vaccination alone at a national level would help in controlling this highly prevalent disease in the Peruvian sheep population. Se evaluó el efecto de la vacuna Rev-1 en el control de la brucelosis ovina causado por Brucella ovis en una empresa lanar de la sierra central del Perú. El uso de esta vacuna fue reintroducida en 1996, después de un lapso de 5 años. Al momento de la evaluación, la empresa mantenía el 86.3% de carneros vacunados (3,284/3,804) y el 100% de carnerillos vacunados (n=1,811). La evaluación consistió en exámenes clínicos testiculares a toda la población de reproductores machos (n=5,615) durante la campaña de esquila del año 2000. Paralelamente, se evaluó niveles de infección en 320 muestras sanguíneas (214 de carneros y 106 de carnerillos), detectando anticuerpos específicos para la Brucella ovis mediante la prueba de inmunodifusión en gel de agarosa (AGID). Los exámenes testiculares revelaron prevalencias de lesiones de epididimitis en tasas de 89.4 x 10 mil en la población adulta (carneros) y 38.6 x 10 mil en la población de jóvenes (carnerillos). Estas prevalencias son significativamente inferiores a las encontradas antes de la reintroducción de la vacuna, en la que se detectaron prevalencias de 817 x 10 mil en carneros y 241 x 10 mil en carnerillos, encontrándose una asociación directa entre el uso de la vacuna y la disminución progresiva de la prevalencia de epididimitis. Asimismo, la prevalencia de la infección global en la población de machos disminuyó significativamente desde 1,186.4 x 10 mil en 1996 a 531.2 x 10 mil en el año 2000; pero con niveles altos de infección en la población de carneros vacunados (635.8 x 10 mil). La población de carneros vacunados muestra una relativa alta prevalencia de la enfermedad clínica (97.4 x 10 mil) comparada con la población no vacunada (38.5 x 10 mil), pero con menor tasa de infección (635.8 x 10 mil) que los no vacunados (1,219.5 x 10 mil). Los resultados obtenidos demuestran no solamente las ventajas del uso de la vacuna Rev-1 en el control de la epididimitis de los carneros, sino la enorme posibilidad de extender su uso a nivel nacional para el control de esta enfermedad altamente prevalente en la ganadería ovina en el Perú. Universidad Nacional Mayor de San Marcos, Facultad de Medicina Veterinaria 2002-07-15 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion info:eu-repo/semantics/article application/pdf https://revistasinvestigacion.unmsm.edu.pe/index.php/veterinaria/article/view/1706 10.15381/rivep.v13i1.1706 Revista de Investigaciones Veterinarias del Perú; Vol. 13 No. 1 (2002); 52-60 Revista de Investigaciones Veterinarias del Perú; Vol. 13 Núm. 1 (2002); 52-60 1682-3419 1609-9117 spa https://revistasinvestigacion.unmsm.edu.pe/index.php/veterinaria/article/view/1706/1481 Derechos de autor 2002 Juan Rondón E., Raúl Rosadio A. https://creativecommons.org/licenses/by-nc-sa/4.0

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