The effectiveness of Salmonella immunization of broiler breeders on the Salmonella colonization of the animals and their progeny after experimental oral infection
Methner, U.; Steinbach, G.; Meyer, H.
Berliner und Munchener Tierarztliche Wochenschrift 107(6): 192-198
1994
ISSN/ISBN: 0005-9366 PMID: 8067990 Document Number: 7792
The immunization of broiler breeder birds with Salmonella typhimurium live or inactivated vaccines (orally and/or parenterally administered) resulted in a considerable antibody response. Maternally produced antibodies were transferred via egg to the progeny. But the transferred antibodies did not increase considerably the resistance of 1 day old chickens to oral Salmonella typhimurium infection. The results of the oral challenge of the broiler breeder birds showed the protective effect induced by the oral immunisation with the Salmonella live vaccine strain. This protection is expressed by a reduced number of salmonella organisms in the caeca and internal organs.
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