FU Berlin Digitale Dissertation
Brigitte Kern : Control of Classical Swine Fever (CSF) in wild boars in the Federal State of Brandenburg Analysis of a field trial with oral immunization Die Bekämpfung der Klassischen Schweinepest (KSP) beim Schwarzwild im Land Brandenburg
|Abstract| |Table of Contents| |More Information|

Abstract The first findings of classical swine fever in wild boar occured in the rural district Ostprignitz-Ruppin of Brandenburg in March 1995. Up to this time the area was considered to be free of swine fever in domestic and wild boars. The swine fever cases were marked particulary by the occurence of dead games and clinically discreased individuals as well as by the involment of young wild boars (< 10 kg carcass weight). In Brandenburg the eradication programm of classical swine fever was based on intensive hunting and on oral immunization with an attenuated type C vaccine (so called Dessauer wild boar lure) carried out within the frame of a field trial. During six immunizations (spring 1995 to autumn 1997) 666300 baits were set out at lure places. On average 80.7 % of the lures were not traceable afterwards. The success of oral immunization was examined by the development of swine fever positive-findings within the swine fever endangered district and by the seroconversion in the entire vaccination area. Due to the oral immunization the classical swine fever prevalence decreased from 4.65 % in March 1995 to 0.58 % in December 1997. After the third immunization the seroconversion reached on average rates between 30 % and 35 %. The seroconversion increased with carcass weight and with number of subsequent immunization. During the investigation period the rate of seroconversion in wild boars up to 17 kg carcass weight was 13.2 %, in wild boars from 18 to 28 kg carcass weight was 23.1 %, subadult wild boars from 29 to 56 kg carcass weight was 33.2 %, and the adult wild boars above 57 kg carcass weight was 41.5 %. In addition, differences in the seroconversion of single rural districts became evident. Thus to be further wildbiological and epidemiological investigations in attachement to the game biotope appear necessary.

Table of Contents Download the whole PhDthesis as a zip-tar file or as zip-File For download in PDF format click the chapter title kern.pdf

More Information:
Online available:	http://www.diss.fu-berlin.de/1999/94/indexe.html
Language of PhDThesis:	german
Keywords:	classical swine fever, wild boars, immunization
DNB-Sachgruppe:	34 Veterinärmedizin
Date of disputation:	02-Jul-1999
PhDThesis from:	Fachbereich Veterinärmedizin, Freie Universität Berlin
First Referee:	PD Dr. Karl-Heinz Lahrmann
Second Referee:	Prof. Dr. Volker Kaden
Contact (Advisor):	poststelle@svla.brandenburg.de
Date created:	14-Dec-2000
Date available:	06-Feb-2001

 

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