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

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

Resultado de la investigación: Contribución a una revistaArtículorevisión exhaustiva

1 Cita (Scopus)

Resumen

The objective of the study was to evaluate the protection and safety for in ovo vaccination against Infection Bursal Disease. Cobb Vantress broilers of one day of age (n=450) were distributed in three groups: Group A, vaccinated at 9 and 19 days with two commercial live vaccines containing Lukert and 2512 strains, respectively; group B, vaccinated in ovo with the antigen-antibody complex at 18 days of incubation; and group C, unvaccinated. At 35 days of age, 20 birds from each group were challenged, ocular via, with the F52/70 strain of Gumboro disease. The security of the complex vaccine was evaluated weekly until 47 days of age by determining the bursal index, gross lesions, histopathological lesions of the bursa, and serological response. Group B showed the best protection with 75% as compared with groups A (68%) and C (30%). Injuries after challenge were characterized by swelling, bleeding, and petechiae in the bursa. In non-challenged birds were none significant differences between groups A and B for the index and bursal histopathology lesions until 28 days of age; however, group A differed from groups B and C at 35 days of age (p<0.05). At the end of the study, group A had 1948 and 2047 antibodies titers higher than groups B and control respectively.

Título traducido de la contribuciónEvaluation of theantigen-antibody complex vaccine of gumboro disease administered in ovo in broiler chickens challenged with F52/70 strain
Idioma originalEspañol
Páginas (desde-hasta)210-218
Número de páginas9
PublicaciónRevista de Investigaciones Veterinarias del Peru
Volumen21
N.º2
EstadoPublicada - 2010
Publicado de forma externa

Nota bibliográfica

Publisher Copyright:
© 20010 Universidad Nacional Mayor de San Marcos. All rights reserved.

Copyright:
Copyright 2020 Elsevier B.V., All rights reserved.

Palabras clave

  • 2512 strain
  • Antigen-antibody complex vaccine
  • Bursal atrophy
  • Bursal index
  • Cellular response
  • Edema
  • Gumboro diseases
  • Humoral response
  • Lymphoid depletion

Huella

Profundice en los temas de investigación de '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'. En conjunto forman una huella única.

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