期刊
MICROBIAL DRUG RESISTANCE
卷 12, 期 4, 页码 284-288出版社
MARY ANN LIEBERT, INC
DOI: 10.1089/mdr.2006.12.284
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Lactobacillus crispatus, L. reuteri, L amylovorus, L. gallinarum, and L salivarius subsp. salivarius strains isolated from cloacal swabs of broiler chickens derived from 20 different farms in Belgium were tested for susceptibility to tetracycline and minocycline. Acquired resistance percentages to these antibiotics were extremely high for L. crispatus, L. reuteri, L gallinarum, and L. salivarius subsp. salivarius (75%-100%). L. amylovorus on the contrary, displayed lower resistance percentages (25%) toward minocycline and tetracycline. In several strains, resistance against the tetracycline antibiotics was associated with the presence of the resistance genes tet(K), tet(L), tet(M), tet(W), and tet(Z). To our knowledge, this is the first report of tet(Z) in lactobacilli and tet(K), tet(L), and tet(W) in lactobacilli identified to species level. Our findings strengthen the evidence of intestinal Lactobacillus species acting as a pool of antimicrobial resistance genes urging the need for prudent use of tetracycline antibiotics in poultry production.
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