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Publication Serological Survey on Antibodies Against Newcastle Disease, Infectio...  

Update Date: [2013-11-11]

NO.: 28
 
Reportno.

AHRI report No.28

Topic

Serological Survey on Antibodies Against Newcastle Disease, Infectious Bursal Disease, Chronic Respiratory Disease and Pullorum Disease in Chicken Breeder Flock in Taiwan
 

Department

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

Author Y.S. u11FLH. Lee 2FY.K. Liao 1FC.S. Tseng iFD.F. Lin lHappy. K. u or Shieh 2fl1L Chien 31FH.T. Sung 4FY.L. Lee 11FH.3. Tsai 1
Summary

A 3-year serological survey on antibodies against Newcastle disease (ND), infectious bursal disease (IBD). chronic respiratory disease (CR])), and pullounn disease (PD) in chicken breeder flocks 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. —Dcc, 1990, a total of 2227 breederchickens from 13 breeder flocks were investigated During Nov. —Dcc, 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 and Nov. Dec., 1992 the percentage was 82.1% and 100?”o, respectively. The breeders had an IBD virus neutralization titer at 1250 or higher were 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 ag1utination antibody against CRD was 52.7% in Feb.-March, 1990. The positive rate inNov.-Dec., 1991 andNov.-Dec.. 1992 was 81.6% and 79%, respectively. Among the 18 flocks surveyed, two flocks were CR1) 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 wwere PD antibody positive. In Nov.-Dec., 1991, eleven out of 13 breeder flocks surveyed were PD antibody positive, and the total positive rate was 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%. Serological SurveyFNewcast1e Disease FInfectious Burs al

Keyword

DxseaseFChronic Respiratory Disease