Survival, persistence and proliferation of Vibrio anguillarum in juvenile turbot, Scophthalmus maximus (L.), intestine and faeces
Survival, persistence and proliferation of Vibrio anguillarum in juvenile turbot, Scophthalmus maximus (L.), intestine and faeces
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DOI：
10.1046/j.1365-2761.1998.00327.x
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发表时间：
1998-01-01
影响因子：
2.5
通讯作者：
Conway, PL
中科院分区：
文献类型：
--
作者：
Olsson, JC;Joborn, A;Conway, PL
本研究的目的是确定口服施用的鳗弧菌细胞是否可以通过摄食大菱鲆的肠道存活，然后在释放的粪便中增殖。此外，病原体在大菱鲆粪便中的生长在肉杆菌的存在下，对一些细菌性鱼类病原体的抑制作用进行了研究。结果发现，鳗弧菌细胞在胃的酸性环境中存活数小时，在肠中持续存在，并在释放的粪便中容易增殖。在大菱鲆粪便提取物中，拮抗菌肉杆菌对鳗弧菌的生长有抑制作用。结果表明，大菱鲆肠道和粪便可作为鳗弧菌的富集场所，利用肠道细菌对弧菌具有拮抗活性，可降低大菱鲆孵化场鱼类致病性弧菌的负荷。
The aim of this study was to determine whether orally administered V. anguillarum cells could survive passage through the intestinal tract of feeding turbot, and thereafter, proliferate in the released faeces. In addition, the growth of the pathogen in turbot faeces in the presence of a Carnobacterium sp. with inhibitory effects against a number of bacterial fish pathogens was studied. It was found that V. anguillarum cells survived the acidic environment of the stomach for several hours, persisted in the intestine and readily proliferated in the released faeces. The antagonistic Carnobacterium sp. inhibited the growth of V. anguillarum during co-culture in turbot faecal extracts. From the results, it was concluded that the turbot intestinal tract and faeces can serve as an enrichment site for V. anguillarum, and the use of intestinal bacteria with antagonistic activity against vibrios may be used to reduce the load of fish pathogenic vibrios in turbot hatcheries.