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Publication Studies in the Bacterin Immunity Methods and Vicissitude of Antibody...  

Update Date: [2013-11-11]

NO.: 27
 
Reportno.

AHRI report No.27

Topic

Studies in the Bacterin Immunity Methods and Vicissitude of Antibody Titers Against Edwaidsiella taida in Eels

Department

1.Taiwan Animal Health Research Institute
2.Department of Veterinary Medicine, National Chung-Hsin2 University
3.Department of Forestry and A2riculture. Taiwan Provincial Government
4.Council of Aziiculture, Executive Yuan

Author S.Y. Lin*$,C, LS.Y, Cliou
Summary

Y.S. LulFL.H. Lee 2FYK. Liao 1FC.S. Tseng iFDi. Lin lFHappy. K. u or Shieh 2FM.L. Chien 31FH.T. Sung 4fl’i. Lee lFHJ. Tsai 1 A 3-year serological survey on antibodies against Newcastle disease (ND), infectious bursal disease (IBD). chronic respiratory disease (CR])), and puilounu disease (PD) in chicken breederfiocks in Taiwan was conducted began in Feb. 1990. A total of 2602 breeder chickkens from 18 breeder flocks were surveyed during Feb.— March. 1990. In Nov. —Dec.. 1990. a total of 2227 breederchickens from 13 breeder flocks were investigated During Nov. —Dec.. 1991. a total of 1560 breeder chickens from 12 breeder flocks were tested. It was found that 66.2% of the breeders surveyed in Feb. March, 1990 had a ND hemagglutination-inhibition antibody titer at 1:32 or higher. In Nov. Dec., 1991 andNov. Dec., 1992 the percentage was 82.1% and 100%. respectively. The breeders had an ]BD virus neutralization titer at 1250 or higher “-crc 61.8% of the total chickens surveyed in Feb. March 1990. It was 32.2% adn 32.7% in Nov. Dec., 1990 and Nov. Dec., 1991 respectively. The total positive rate of plate agglutination antibody against CR) was 52.7% in Feb.-March, 1990. The positive rate in Nov.-Dec.. 1991 and Nov.-Dec.. 1992 was Sl.6°o and 79%, respectively. Among the 18 flocks surveyed, two flocks were CRD antibody- negative flocks inn Feb.-March.. 1990. In Nov.-Dec.. 1990. all the 13 breeder flocks survered were CR]) antibody positive. The total positive rate of plate agglutination antibody against PD was 4.2% in Feb.-March., 1990. Seven out of 18 breeder flocks survered were PD antibody positive. In Nov.-Dec., 1991. eleven out of 13 breeder flocks surveyed were PD antibody positive, and the total positive rate “-as 2.9%. In Nov-Dec., 1992, nine out of 12 breeder flocks surveyed were PD antibody positive, and the total positive rate was 2.0%.

Keyword

Serological SurveyFNewcast1e DiseaseFInfectious Bursal CWO DiseaseFC&onic Respiratory Disease