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Revista de Investigaciones Veterinarias del Perú
Article . 2012 . Peer-reviewed
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Revista de Investigaciones Veterinarias del Perú
Article
License: CC BY NC SA
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EVALUACIÓN DEL COMPLEJO VACUNAL ANTÍGENO-ANTICUERPO DE LA ENFERMEDAD DE GUMBORO ADMINISTRADO in ovo EN POLLOS DE CARNE FRENTE A UN DESAFÍO EXPERIMENTAL CON LA CEPA F52/70.

Authors: Guzmán G, John; Alba Ch, Mónica; Icochea D, Eliana; Manchego S, Alberto; Perales C., Rosa; Fribourg C, Susana;

EVALUACIÓN DEL COMPLEJO VACUNAL ANTÍGENO-ANTICUERPO DE LA ENFERMEDAD DE GUMBORO ADMINISTRADO in ovo EN POLLOS DE CARNE FRENTE A UN DESAFÍO EXPERIMENTAL CON LA CEPA F52/70.

Abstract

El objetivo del presente estudio fue evaluar la proteccion y seguridad del complejo vacunal antigeno-anticuerpo administrado in ovo frente a un desafio experimental con la cepa F52/70 de la Enfermedad de Gumboro en pollos de carne. Se utilizaron 450 pollos de la linea Cobb Vantress, de un dia de edad, distribuidos en tres grupos: Grupo A, vacunado, via agua de bebida, a los 9 dias con la cepa intermedia suave tipo Lukert y revacunado a los 19 dias con la cepa intermedia intermedia 2512; grupo B, vacunado via in ovo a los 18 dias de incubacion con el complejo vacunal antigeno-anticuerpo; y grupo C, control no vacunado. A los 35 dias de edad, 20 aves de cada grupo fueron desafiadas, via ocular, con la cepa F52/70 de la enfermedad de Gumboro. La seguridad del complejo vacunal se evaluo semanalmente hasta los 47 dias de edad mediante la determinacion del indice bursal, lesiones macroscopicas, lesiones histopatologicas de bursa y respuesta serologica. Las lesiones post desafio se caracterizaron por edema y hemorragias petequiales en la bursa. El grupo B presento la mejor proteccion con 75% comparado con el grupo A (68%) y el grupo control (30%). Las lesiones post desafio se caracterizaron por edema y hemorragias petequiales en la bursa. En las aves no desafiadas no se observo diferencias significativas entre los grupos A y B para el indice bursal y lesiones histopatologicas hasta los 28 dias de edad; sin embargo, a partir de los 35 dias el grupo A fue significativamente diferente de los grupos B y C (p<0.05). Al final del estudio el grupo A obtuvo titulos de 1948 y 2047 mas de anticuerpos que el grupo B y el control, respectivamente.

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Keywords

índice bursal, lymphoid depletion, respuesta humoral, bursal atrophy, cellular response, 2512 strain, enfermedad de Gumboro, bursal index, cepa 2512, atrofia bursal, complejo vacunal antígeno-anticuerpo, Gumboro diseases, depleción linfoide, edema, respuesta celular, antigen-antibody complex vaccine, humoral response

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
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