Details

Title

Three-step Anti-aMPV IgA Expression Profile Evaluation in Turkeys of Different Immunological Status after TRT Vaccination

Journal title

Polish Journal of Veterinary Sciences

Yearbook

2016

Numer

No 3

Divisions of PAS

Nauki Biologiczne i Rolnicze

Abstract

<jats:title>Abstract</jats:title><jats:p>Maternally derived antibodies (MDA) don not protect turkeys against rhinotracheitis (TRT) but high MDA influences upper respiratory tract (URT) immunity stimulation after avian Metapneumovirus (aMPV) vaccination. Humoral immunity can not be considered as an indicator of protection against TRT, but specific antibodies inhibit aMPV replication and alleviate the course of TRT. Scarce reports indicate the role of IgA in protection against TRT. The aim of our study was to investigate the impact of MDA on stimulation, antigen specificity acquisition of B lymphocytes, and the production of specific IgA after TRT vaccination of turkeys.</jats:p><jats:p>The results of our study indicate that MDA on the day of TRT vaccination causes disturbances at different levels of specific humoral immunity expression including antigen specificity acquisition of B IgA</jats:p><jats:p>These results corroborate our previous findings and indicate that MDA could be responsible for TRT vaccination failure. These findings could explain the observed frequency of TRT field outbreaks despite aMPV vaccination of turkey flocks.</jats:p>

Publisher

Polish Academy of Sciences Committee of Veterinary Sciences ; University of Warmia and Mazury in Olsztyn

Date

2016

Identifier

ISSN 1505-1773

DOI

10.1515/pjvs-2016-0064

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