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Pulsed field gel electrophoresis (PFGE), multiplex PCR and multilocus sequence typing (MLST) methods were used for genotyping study of seventy-three L. monocytogenes isolates collected in Poland between 2000 and 2002 from human, food, environment and a diseased goat. The multiplex PCR, which is an alternative method to classical serotyping, divided the isolates into four PCR groups, IIa (42.5%), IIb...
The highest density of the great crested grebe in the Dobczyce Reservoir was observed in autumn. In the littoral zone the grebes chiefly stayed during the breeding period. In the stomachs of these birds 6 fish species were found, the most frequent occurrence being perch, Perca fluviatilis L. The total length of the consumed fish ranged from 6 to 18 cm. Also insects and additionally bivalves and plant...
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