Anaplasmosis ovinatransmisión vertical e inmunidad calostral
- Gómez, M.
- Jiménez, C.
- Ortín, A.
- Villanueva, S.
- Benito, A.
- Bernal, J.L
- Lacasta, D.
- M.ª Jesús Alcalde Aldea (coord.)
- Ceferina Vieira Aller (coord.)
- Juan José García García (coord.)
- Valentín Pérez Pérez (coord.)
- Raúl Bodas Rodríguez (coord.)
- Jesse Barandika (coord.)
Publisher: Ediciones Universidad de Salamanca ; Universidad de Salamanca
ISBN: 978-84-9012-793-3
Year of publication: 2017
Pages: 341-348
Congress: Sociedad Española de Ovinotecnia y Caprinotecnia (SEOC). Jornadas (42. 2017. Salamanca)
Type: Conference paper
Abstract
After the diagnosis of a case of ovine anaplasmosis in the year 2014, a deeper investigationon the disease was developed. The progression of the disease and the development ofantibodies against the bacteria Anaplasma ovis during the production cycle of the animals(pregnancy, lambbirth and lactation) was studied. Furthermore, the possibility of verticaltransmission of the bacteria and the transfer of immunity by the colostral route were alsoinvestigated. For these purposes three A. ovis experimentally infected sheep and their lambswere used. The ewes had overcome the disease but they were carriers of the bacteria. Toevaluate the development of the disease, there were made periodic clinical evaluations andlaboratory tests: hematology, qPCR for the evaluation of the bacterial load and cELISAfor the detection of antibodies against A. ovis. To determine the vertical transmission ofthe infection, qPCR has been executed to lambs. Furthermore, to evaluate the transferof immunity via colostrum, detection of antibodies by cELISA has been performed incolostrums and lambs. The results show that under stress and physiological changes, such aslambing, the bacteria can reactivate and appear a new outbreak of disease. Furthermore, itcould not be detected the passage of the bacteria through the placenta. It was demonstrateda transfer of antibodies from the mother to lambs via colostrum.