The antagonistic activity of lactic acid bacteria in relation to the causative agents of intestinal diseases in domestic birds
Kvasnikov, E.I.; Shishlevskaia, T.N.; Kovalenko, N.K.
Mikrobiolohichnyi Zhurnal 45(5): 27-32
1983
ISSN/ISBN: 0201-8462 PMID: 6400780 Document Number: 201236
Certain lactic-acid streptococci and lactobacilli inhabiting the digestive tract of poultry are highly antagonistic to colibacteriosis agents. Streptococcal antagonists are detected in chickens from the first days of life; lactobacilli appear 15 days later. Antagonism of certain strains is also manifested under conditions which prevent acid formation, i.e., in media without carbohydrates. Representatives of the species Lactobacillus salivarius and Streptococcus faecium are the most active. Nearly all L. salivarius strains isolated at poultry plants are highly resistant to tetracyclins and chloramphenicol. Strains with specific antagonism may be useful to add to the normal microflora in the chicken intestinal tract for preventing diseases.