In recent years,Streptococcus agalactiae has become one of the most serious bacterial disease in China,but the pathogenic of S. agalactiae to tilapia is still unknowed. Oreochromis niloticus was infected to S. agalactiae( HN016 strain) by injection,gavage and soak in this study to investigate the pathogenic pathway,the clinical signs of each group were recorded after infection. The number and distribution of the pathogenic bacteria were recorded by the tablet count method. The results showed that the typica...
2.广西壮族自治区水产科学研究院,广西水产遗传育种与健康养殖重点实验室,南宁530021)age infection,and the pathogen could also invade in vivo after high concentration soak infection.However,no diseasesymptoms and death in soak infection.We suggested that in nat