Author/Editor		Benčina, D; Svetlin, A; Dorrer, D; Tadina-Jakšič, T
Title		Humoral and local antibodies in chickens with mixed infection with three Mycoplasma species
Type		članek
Source		Avian pathology
Vol. and No.		Letnik 20
Publication year		1991
Volume		str. 325-34
Language		eng
Abstract		Eight one-year-old commercial layer hens with strong humoral antybody response to Mycoplasma synoviae were examined for mycoplasmas. Cultures from the repiratory tract, the Harderian gland and the oviduct showed the group to be infected with M. synoviae, M gallisepticum, M. gallinarum and Bordetella avium. The humoral antibody response to M. synoviae was strongly positive and supported by high titre specific IgG and IgM class antibody, while that against M. gallisepticum and M. gallinarum was weak or undetectable. However, an antibody response to M. gallisepticum and M. gallinarum was demonstrated in the Harderian gland, respiratory secretions and oviduct of some birds along with antibody to M. synoviae. In contrast with serum, antibodies of IgA and IgG classes against M. gallisepticum were observed in the extracts of spleen of all birds. These data indicate that adult chikens are capable of mounting an antibody response against at least three Mycoplasma species during a mixed infection but it may be necessary to examine tissues as well as serum to demonstrate them.
Descriptors		MYCOPLASMA ANTIBODIES IMMUNOENZYME TECHNIQUES AGGLUTINATION TESTS FLUORESCENT ANTIBODY TECHNIQUE HEMAGGLUTINATION INHIBITION TESTS CHICKENS