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EM及重氢硫酸盐对黄颡鱼卵孵化中水霉的抑制作用
引用本文:宋学宏,陈葵,王永玲,朱春峰.EM及重氢硫酸盐对黄颡鱼卵孵化中水霉的抑制作用[J].淡水渔业,2007,37(1):9-12,18.
作者姓名:宋学宏  陈葵  王永玲  朱春峰
作者单位:苏州大学生命科学学院,江苏苏州,215123
基金项目:苏州市农业科技发展项目,江苏省苏州市农业科技招标项目
摘    要:将黄颡鱼(Pelteobagrus fulvidraco)受精卵分别加入到单含不同浓度有效微生物EM(E ffective m icroorgan-ism,EM)及含不同浓度EM和50μL/L的重氢硫酸盐复合物的静水中孵化,研究EM和重氢硫酸盐对鱼卵受精率、水霉病发生率的影响。结果表明,EM和重氢硫酸盐均可有效地抑制鱼卵孵化过程中水霉病的发生,提高鱼卵的受精率;而EM及重氢硫酸盐联合作用能有效地延长抑制水霉病发生的时间。当EM与重氢硫酸盐联合使用的浓度分别为8μL/L和50μL/L时,对水霉病具有更强的抑制作用。

关 键 词:黄颡鱼(Pelteobagrus  fulvidraco)  EM  重氢硫酸盐  受精卵孵化  水霉的抑制
文章编号:1000-6907-(2007)01-0009-04
修稿时间:2006-06-08

Effects of EM and Deuterium Sulfate Treatment on the Inhibition Rate of Saprologenia parasitia during the Hatching of Pseudobagrus fulvidraco Fertilized Eggs
SONG Xue-hong,CHEN Kui,WANG Yong-ling,ZHU Chun-feng.Effects of EM and Deuterium Sulfate Treatment on the Inhibition Rate of Saprologenia parasitia during the Hatching of Pseudobagrus fulvidraco Fertilized Eggs[J].Freshwater Fisheries,2007,37(1):9-12,18.
Authors:SONG Xue-hong  CHEN Kui  WANG Yong-ling  ZHU Chun-feng
Institution:School of Life Sciences, Soochow University, Sazhou, Jiangsu 215123
Abstract:The fertilized eggs of Pseudobagrus fulvidraco were incubated for hatching in still water only containing different concentrations of Effective microorganism(EM)or those supplemented with 50 μL/L deuterium sulfate(D_(2)SO_(4)).The effects of EM and/D_(2)SO_(4) on the fertilization rate of Pseudobagrus fulvidraco eggs and the incidence rate of Pseudobagrus fulvidraco were investigated.The results showed that both EM and D_(2)SO_(4) could effectively inhibit Saprologenia parasitia during the hatching of Pseudobagrus fulvidraco fertilized eggs and increase the fertilization rate.It was also found that combination treatment with EM and D_(2)SO_(4) prolonged the inhibition time of Saprologenia parasitia.Moreover,the stronger inhibition of Saprologenia parasitia was observed in the treatment of 8 μL/L EM and 50 μL/L(D_(2)SO_(4)).
Keywords:EM
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