Dynamics of infection with Mycoplasma hyopneumoniae in piglets from mothers with and without a history of vaccination

C. Vanessa Bachmann, E. Sonia Calle, A. Marlon Torres, Ch César Gavidia, C. Siever Morales, C. Francisco Acosta

Research output: Contribution to journalArticle

1 Scopus citations

Abstract

© 2006 Universidad Nacional Mayor de San Marcos. All rights reserved. The aim of the study was to determine the time of infection with Mycoplasma hyopneumoniae in 240 piglets of vaccinated and non vaccinated sows from a positive farm with an all-in/all-out (AIAO) system, located in the Chillón valley, Lima. The study was conducted during autumn and winter 2003. One group of sows was vaccinated with 2 ml of a M. hyopneumoniae commercial bacterin at 85 days of gestation while the other group remained unvaccinated. Two groups of 120 piglets each were established according to their dams' status of immunity. Blood samples were collected from piglets at various times during the production period (weaning till slaughter) for measuring antibodies against M. hyopneumoniae using an ELISA indirect assay. The 66.6 (74/112) and 85.6% (101/118) of piglets from the vaccinated and non-vaccinated dams, respectively, were seroreactive throughout the period of the study. The results indicated that the time of infection occurred in both groups at approximately 10 weeks of age, and without significant differences between groups (p>0.05). Time of infection occurred concomitantly with the stress caused by the relocation of piglets from nursery to growth-finishing corrals.
Original languageAmerican English
Pages (from-to)51-57
Number of pages7
JournalRevista de Investigaciones Veterinarias del Peru
StatePublished - 1 Jan 2006

Fingerprint Dive into the research topics of 'Dynamics of infection with Mycoplasma hyopneumoniae in piglets from mothers with and without a history of vaccination'. Together they form a unique fingerprint.

  • Cite this