engleski

Correlation of haemagglutination inhibition and enzyme-linked immunosorbent assays for antibodies to Newcastle disease virus

Antibody responses of commercial broiler chickens vaccinated for Newcastle disease were assayed by haemagglutination inhibition and enzyme-linked immunosorbent assay, and the results from the two methods compared. Three-hundred-ninteen chickens from 37 farms were assayed. The correlation coefficient was 0.85. Analysis of individual slopes of data from the 37 farms indicated that at least eight chickens from a farm must be sampled to achieve an acceptable degree of paralellism.

Newcastle disease virus ; haemagglutination inhibition ; enzyme-linked immunosorbent assay

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