To study the putative transfer of antibiotic resistance from broiler breeders to human, hen’s eggs and theirday-old chicks were examined for the presence of bacteria. The most frequently isolated organisms indecreasing order were: Streptococcus spp., Bacillus spp., Staphylococcus spp., Klebsiella spp., Enterobacterspp. and Escherichia coli followed by Citrobacter spp., Proteus spp. and Pseudomo...

conclusions minimum biofilm eradication values of ciprofloxacin obtained in the study are close to the values of the minimal inhibition concentration (mic). results all tested strains formed a biofilm. a value of 1.0 μg/ml ciprofloxacin is mbe50 for the strains of both tested species. an mbe90 value of ciprofloxacin for isolates of p. vulgaris was 2 μg/ml and for p. mirabilis was 512 μg/ml. mat...

conclusions optimization of medium composition and synergistic antimicrobial activity on the cyanobacteria could lead to production of effective antimicrobials. results c. leptolyngbya had antimicrobial activity individually and in synergy with antibiotics against gram-positive and gram-negative bacteria. the highest activity of the chloroform extract was on gram positive strains and its effect...

A total of 1,013 isolates of Enterobacteriaceae were identified in parallel by the Repliscan (Cathra International, Ontario, Canada) and API 20E (Analytab Products, Plainview, N.Y.) systems. There was a 62% agreement at the genus level between the two systems. Of the 38% discrepant results, Repliscan classified 22% as "biochemical pattern not on file," 8% as a multiple-genus group which include...

conclusions bacteria from biological waste were competent producers of pg and must be used on an industrial scale to cope with the demand of pg in the food industry. results among the bacillus, bacillus vallismortis (jq990307) isolated from mango was the most competent producer of pg; producing up to 4.4 u/µl. amongst pseudomonas, pseudomonas aeruginosa (jq990314) isolated from oranges was the ...

The monogene Dactylogyrus eucalius Mizelle and Regensberger, 1945 and its ability to maintain a population from year to year on the annual fish Culaea inconstans Kirkland was examined in a small lake in central Ontario. Fish were sampled toward the end of their annual breeding season, at a time when the host population consisted of 2 cohorts, i.e., young-of-the-year (0+) and mature adults (1+)....