TURKISH JOURNAL OF VETERINARY & ANIMAL SCIENCES, cilt.25, sa.6, ss.983-988, 2001 (SCI-Expanded)
A total of 473 sera from hens of different age groups and different breeds and a total of 430 eggs were collected from 11 breeders and egg producers in the districts of Adapazan, Afyon, Ankara and Konya. Lipopolysaccharide (LPS), heat-extract (HE) and flagella antigens were tested in the standardizing ELISA technique. Flagella antigen was found useful in the screening of field samples.