鳌游水族-淡水观赏鳌虾、水族观赏宠物小龙虾饲养、繁殖经验!

特别提醒:本站诚邀鳌虾爱好者投稿或成为本站写手。

您当前的位置: 首页 » 疾病解决 » 黑斑病

黑斑病

作者:尘风发布:2021-05-26 6:38:41阅读:32,037次

此病患病个体的壳会多处有黑色斑块,显现位置无固定,以头胸甲,腹节相交,尾扇部位’最易发生,并会扩散到全身。患部的黑色素堆积现象,但不影响活力,食欲不会降低,也不致死亡,但会影响脱壳与美观。此症病发的主因为过度的刺激,如换水率过高、用药不当过量等,引起冲撞受伤,或脱壳时受到攻击所致。而体弱的病虾经常遭受几丁质分解细菌(Benekea spp.)附着或侵入并分泌几丁质酵素(chitinase)将壳表体几丁质分解,并会逐渐扩大型呈黑色素沉淀型成黑斑,严重有穿孔的现象,如轻微尚未穿孔,此时可藉由大量换水2~3次,使用茶粕10~15ppm药浴一天刺激脱壳即可去除黑斑;较严重患部可使用四级胺0.5~1ppm^浴一天,每隔5天一次连续3次以上,也可使用福尔马林20ppm ,孔雀绿0.3ppm药浴一天即可。

本文章由鳌游水族提供,转载请注明原文地址:https://aysz01.com/archives/49926.html

  • 友情链接

    Warning: require(/www/wwwroot/link.aysz01.com/wp-includes/theme-previews.php): failed to open stream: No such file or directory in /www/wwwroot/link.aysz01.com/wp-settings.php on line 198

    Fatal error: require(): Failed opening required '/www/wwwroot/link.aysz01.com/wp-includes/theme-previews.php' (include_path='.:/www/server/php/72/lib/php') in /www/wwwroot/link.aysz01.com/wp-settings.php on line 198

    Fatal error: Uncaught Error: Call to a member function set() on null in /www/wwwroot/link.aysz01.com/wp-includes/l10n.php:856 Stack trace: #0 /www/wwwroot/link.aysz01.com/wp-includes/l10n.php(959): load_textdomain('default', '/www/wwwroot/li...', 'zh_CN') #1 /www/wwwroot/link.aysz01.com/wp-includes/class-wp-fatal-error-handler.php(49): load_default_textdomain() #2 [internal function]: WP_Fatal_Error_Handler->handle() #3 {main} thrown in /www/wwwroot/link.aysz01.com/wp-includes/l10n.php on line 856