VACCINATION AGAINST AUJESZKYS-DISEASE - C HANGES IN ANTIBODY CONTENT OF THE BLOOD OF GILTS, THEIR COLOSTRUM AND THE BLOOD OF THEIR OFFSPRING AND THE INFLUENCE OF MATERNAL ANTIBODIES ON THE VACCINATION RESPONSEOF WEANLINGS
Ba. Tenhagen et al., VACCINATION AGAINST AUJESZKYS-DISEASE - C HANGES IN ANTIBODY CONTENT OF THE BLOOD OF GILTS, THEIR COLOSTRUM AND THE BLOOD OF THEIR OFFSPRING AND THE INFLUENCE OF MATERNAL ANTIBODIES ON THE VACCINATION RESPONSEOF WEANLINGS, DTW. Deutsche tierarztliche Wochenschrift, 102(2), 1995, pp. 86-90
In two vaccination trials the influence of different vaccination sched
ules of gilts on the colostral immunity of their offspring and the inf
luence of maternally derived antibodies on the active formation of ant
ibodies after vaccination in weanlings were tested. It could be shown,
that vaccination of gilts 6 and 3 weeks prior to farrowing led to hig
her blood levels of maternally derived antibodies in their offspring t
han vaccination earlier during gestation or prior to mating. Correlati
on between antibodylevel of sow, colostrum and offspring was good, the
halflife of the antibodies was 11.3 days. Low levels of maternally de
rived antibodies did not influence the active formation of antibodies
after vaccination, higher levels reduced antibody-formation, but did n
ot suppress it completely. Sow colostrum and blood of piglets are gene
rally adequate substrates for the serologic controle of breeding units
regarding Aujeszky's disease. Existing problems are mentioned. The re
sults of this study are discussed concerning their importance for the
eradication of Aujeszky's disease with vaccination programs.