一、投喂前用藥在投喂馴化比較好的情況下,按時敲擊,發出投喂信號後,80%dechishiyudouhuiyouxiangshichangqiangshi。liyongzheyitedian,zaishichangjizhongyongyao,keshoudaoshibangongbeidexiaoguo。qiaojifachutouweixinhaoqian,xianzaishichangfanweineipoyao,yongyaoliangshiyudebingqingqingzhongzengjian,yibanyongyaoliangweiquanchiposayongliangde10%。然後按常規方法敲擊發出信號,魚類便遊來搶食。食場局部的藥物濃度較大,有一些對藥物比較敏感的魚類會扭頭逃竄,造成“炸群”現象。由於魚類急於攝食,過一會又會返回食場。經過逃竄、返fan回hui幾ji個ge反fan複fu後hou,魚yu類lei慢man慢man地di適shi應ying了le藥yao物wu刺ci激ji,魚yu群qun便bian能neng夠gou較jiao為wei安an穩wen地di攝she食shi,從cong而er達da到dao防fang治zhi魚yu病bing的de目mu的de。也ye可ke以yi用yong長chang竹zhu竿gan係xi線xian,將jiang藥yao袋dai紮zha眼yan後hou吊diao落luo在zai食shi場chang上shang風feng頭tou的de水shui麵mian下xia,讓rang藥yao物wu慢man慢man溶rong解jie,魚yu群qun反fan複fu多duo次ci碰peng撞zhuang藥yao袋dai可ke促cu進jin藥yao物wu溶rong解jie,同tong樣yang會hui起qi到dao較jiao好hao的de防fang治zhi效xiao果guo。
二、喂料過程中用藥一般需2rencaozuo,yirenqiaojifachuxinhaoweiyu,lingyirentiqianzhunbeihaoyaoye。kaishiposashiyaowunongdukedayixie,zhuyaopozaiqiangshiyuqundesizhoushuimian,yaowuposademianjijinliangdayixie,ranhouzaiyongjiaoxinongdudeyaoyezhijiepoxiangqiangshideyuqun。cishi,yuqunyexuyaojingguoyigeyoutaobidaofanhuideshiyingguocheng。
以上用藥方法主要適用於防治吃食魚類的細菌性疾病,使用時應注意以下幾點:1.用藥的前一頓應少喂,以增進食欲。2.用藥時要適當延長投喂時間。3.要連續用藥3~5日,盡量做到藥不漏魚並保證治療效果。4.殺菌藥可選用此法,殺蟲藥盡量避免使用此法。5.此法主要適用於魚病預防,在魚類患病嚴重的情況下,還必須配合其他方法綜合治療。
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