The server is under maintenance between 08:00 to 12:00 (GMT+08:00), and please visit later.
We apologize for any inconvenience caused
Login  | Sign Up  |  Oriprobe Inc. Feed
China/Asia On Demand
Journal Articles
Laws/Policies/Regulations
Companies/Products
Bookmark and Share
da huang yu ban ti chong bing de fang zhi ji shu
Author(s): 
Pages: 39
Year: Issue:  11
Journal: China Fisheries

Keyword:  防治技术瓣体虫病大黄鱼大黄鱼鱼种预防措施福尔马漏斗状口病害防治鱼种培育纤毛虫;
Abstract: 大黄鱼鱼种培育阶段(体长2.5-10cm),在海区水温25-27℃,水流不畅,培育密度大的情况下极易寄生瓣体虫,亦称瓣体虫病。当鱼种被该虫大量寄生后便引起体质衰弱而大量死亡。这两年笔者对该病进行了多次研究,得到了有效的防治技术,现介绍如下:一、病原:瓣体虫是原生动物中纤毛虫的一种,为腹面平坦的椭园形或卵形,大/J‘45-80X29-53微米。腹面有一园形胞口和漏斗状口管,有一椭园形大核和一园球形小核,大核之后有一花朵状折光瓣状体。腹面左右侧各有12——14条纤毛线,中red5-8条纤毛线,背面提露于纤主、其用在村培加囹所示_二、症状:瓣体虫寄生在鱼体表。鳍条、鳃丝上,使鱼体粘液分泌增多。患鱼离
Related Articles
No related articles found