PRODUCTIVE BEHAVIOR OF A LOT OF HENS POSITION vaccinated with strain of Mycoplasma gallisepticum ts11

Authors

  • Roxana Sánchez I. Práctica privada
  • Eliana Icochea D. Laboratorio de Patología Aviar, FMV-UNMSM
  • Antonio Ramírez V. Práctica privada
  • Néstor Falcón P. Laboratorio de Medicina Veterinaria Preventiva, FMV-UNMSM
  • Mónica Alba Ch. Laboratorio de Patología Aviar, FMV-UNMSM

DOI:

https://doi.org/10.15381/rivep.v16i2.1551

Keywords:

Mycoplasma gallisepticum, vaccine, PCR, ts11

Abstract

A field study was conducted to evaluate productive parameters in layers vaccinated with the Mycoplasma gallisepticum (MG) ts11 vaccine. A total of 9,065 free mycoplasma Hy Line Brown pullets were raised on a previously detected MG positive farm. The birds were divided in two groups and placed in two separated sections in the same farm. One group was vaccinated at four weeks of age and the other remained non vaccinated. Serum plate agglutination (SPA), haemagglutination inhibition (HI) and enzyme linked immunsorbent assay (ELISA) were used to measure the serum antibody response after vaccination and field challenges. Polymerase chain reaction assay (PCR) and cultures were used to determine field challenges by mycoplasma and salmonella. Vaccinated birds laid 188 egg/hen (11.55 kg) whereas non-vaccinated ones laid 184 egg/hen (11.34 kg) over a 41-week period. Feed conversion was 2.57 and 2.62 for the vaccinated and the nonvaccinated group respectively (p<0.05). There were significant differences in the productive parameters between vaccinated and non vaccinated group. The marginal economic analysis showed an economic profit of S/. 1.50 (US$ 0.43) per housed hen. The birds were exposed to environmental heat stress and natural challenges by Mycoplasma gallisepticum, Mycoplasma synoviae, infectious bronchitis virus and Salmonella enteritidis. Despite the negative influence of these factors on the productive performance, the results of this study showed an economic profit and better productive results after vaccination with the ts11 strain.

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Published

2005-12-30

Issue

Vol. 16 No. 2 (2005)

Section

Artículos Primarios

License

Copyright (c) 2005 Roxana Sánchez I., Eliana Icochea D., Antonio Ramírez V., Néstor Falcón P., Mónica Alba Ch.

Creative Commons License

This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.

AUTHORS RETAIN THEIR RIGHTS:

a. Authors retain their trade mark rights and patent, and also on any process or procedure described in the article.

b. Authors retain their right to share, copy, distribute, perform and publicly communicate their article (eg, to place their article in an institutional repository or publish it in a book), with an acknowledgment of its initial publication in the Revista de Investigaciones Veterinarias del Perú (RIVEP).

c. Authors retain theirs right to make a subsequent publication of their work, to use the article or any part thereof (eg a compilation of his papers, lecture notes, thesis, or a book), always indicating the source of publication (the originator of the work, journal, volume, number and date).

How to Cite

Sánchez I., R., Icochea D., E., Ramírez V., A., Falcón P., N., & Alba Ch., M. (2005). PRODUCTIVE BEHAVIOR OF A LOT OF HENS POSITION vaccinated with strain of Mycoplasma gallisepticum ts11. Revista De Investigaciones Veterinarias Del Perú, 16(2), 135-142. https://doi.org/10.15381/rivep.v16i2.1551