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Aims
The aims of the study were to evaluate whether epidemic strains of streptococcosis infected tilapia can be isolated and identified from dead fish for epidemiological investigation.
Methods and Results
Firstly, tilapias were inoculated with a lethal dose (1 × 108 CFU per fish) of Streptococcus agalactiae and brain tissues were harvested for bacteriological examination and qPCR assay 3, 12,...
By cutting a spherical focused transducer into two coaxial and confocal transducer elements, a confocal complex transducer used in dual-frequency HIFU system was obtained. The lesion induced by dual-frequency HIFU in freshly excised porcine livers were obviously larger than that induced by conventional single-frequency HIFU at the same exposure conditions. The experiment results have also shown that...
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