| clostridium perfringens toxin types from freshwater fishes in one water reservoir of shandong province of china, determined by pcr. | four hundred and twenty intestinal content samples (not including intestinal tissues) of freshwater fishes (60 silver carps, 100 carps, 100 crucian carps, 60 catfishes and 100 zaieuws) caught from one water reservoir were examined bacteriologically for the occurrence of c. perfringens. isolates were examined by polymerase chain reaction (pcr) for genes encoding the four lethal toxins (alpha, beta, epsilon and iota) for classification into toxin types and for genes encoding enterotoxin and the no ... | 2008 | 18717056 |
| detection of toxoplasma gondii in shellfish and fish in parts of china. | in this study, a total of 3432 aquatic animals covering eight species were tested by specific polymerase chain reaction (pcr) assays to investigate the presence of toxoplasma gondii, in china. the results showed that, out of 618 procambarus clarkii samples collected from the different areas in southeast china, four samples from jiangxi province were positive. of 456 hypophthalmichthys molitrix samples, one sample from jiangsu province was positive. in addition, there was only one positive sample ... | 2014 | 24331298 |