Non-infectivity of cattle Streptococcus agalactiae in Nile tilapia, Oreochromis niloticus and channel catfish, Ictalurus punctatus

被引：27
作者：
Garcia, Julio C. [1 ]
Klesius, Phillip H. [1 ]
Evans, Joyce J. [2 ]
Shoemaker, Craig A. [1 ]
机构：
[1] USDA ARS, Aquat Anim Hlth Res Lab, Auburn, AL 36830 USA
[2] USDA ARS, Aquat Anim Hlth Res Lab, Chestertown, MD 21260 USA
来源：
AQUACULTURE | 2008年 / 281卷 / 1-4期
关键词：
Streptococcus agalactiae; fish; cattle; phenotypic characteristics; infectivity;
D O I：
10.1016/j.aquaculture.2008.05.028
中图分类号：
S9 [水产、渔业];
学科分类号：
0908 ;
摘要：
Streptococcus agalactiae is classified as a Lancefield's group B Streptococcus. It is one-causative bacterium of streptococcosis that is responsible for severe economic losses in wild and cultured fish worldwide. S. agalactiae also causes bovine mastitis. No information is available on infectivity of cattle S. agalactiae isolates in fish. In the present study, the results showed that 10 cattle isolates from 8 different dairy farms were not infectious in Nile tilapia (Oreochromis niloticus) or channel catfish (Ictalurus punctatus) at greater than 108 colony forming units per fish. S. agalactiae was not re-isolated from the brain or head kidney of the fish at 24 and 48 h post-injection. Published by Elsevier B.V.
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收藏
页码：151 / 154
页数：4
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