zaiziranshengtaitiaojianxia,huangshanjuyoujiqiangdeshengminglihekangbingli,errengongyangzhitiaojianxia,youyusiyangmiduzengda,yiyinfabinghai。huangshanfabingchuqihennanguanchadao,yidanbingzhengmingxianyijinghennanzhiyule,yinci,shanyuyangzhiyaojianchiyufangweizhu、防治結合。
一.meihuabanbing。chuqiyushangkouhuoruoshangangmenfujindengchuxianxiaohongban,jierkuodachengdoulidaxiaodeyuanxinghuotuoyuanxingban,yanzhongshiweibuquanbulandiao,piaofushuimianersi。fangzhifangfa:經常在鱔魚池內放幾隻癩蛤蟆,利用其身上所分泌的毒汁,可有效殺死病菌。
二、發(fa)燒(shao)病(bing)。高(gao)密(mi)度(du)飼(si)養(yang)情(qing)況(kuang)下(xia),黃(huang)鱔(shan)分(fen)泌(mi)粘(zhan)液(ye)的(de)速(su)度(du)加(jia)快(kuai),若(ruo)換(huan)水(shui)不(bu)及(ji)時(shi)或(huo)換(huan)水(shui)有(you)死(si)角(jiao)時(shi),就(jiu)會(hui)因(yin)粘(zhan)液(ye)發(fa)酵(jiao)而(er)釋(shi)放(fang)高(gao)熱(re),引(yin)起(qi)黃(huang)鱔(shan)體(ti)溫(wen)升(sheng)高(gao)。病(bing)鱔(shan)相(xiang)互(hu)纏(chan)繞(rao)翻(fan)滾(gun),體(ti)表(biao)粘(zhan)液(ye)脫(tuo)落(luo),頭(tou)部(bu)腫(zhong)脹(zhang)、焦燥。防治方法:減少放養密度,池內增投部分泥鰍,利用泥鰍吃掉剩餌,又可利用它上下翻滾,減少黃鱔纏繞。另外,還要注意換水。
三、膚fu黴mei病bing。此ci病bing是shi由you於yu放fang養yang密mi度du過guo大da和he餌er料liao不bu足zu而er引yin起qi黃huang鱧li互hu相xiang殘can殺sha致zhi逛guang公gong傷shang而er引yin起qi的de,病bing鱔shan身shen上shang有you綿mian黴mei狀zhuang菌jun絲si,體ti質zhi瘦shou弱ruo,很hen少shao攝she食shi,終zhong致zhi衰shuai竭jie而er死si。防fang治zhi方fang法fa:用占池水重量萬分之四的食鹽和小蘇打(各占1/2拌勻),加水溶化後,灑潑全池。
四、毛mao細xi線xian蟲chong病bing。黃huang鱔shan患huan此ci病bing較jiao普pu遍bian,主zhu要yao是shi由you毛mao細xi線xian蟲chong體ti寄ji生sheng於yu腸chang壁bi粘zhan膜mo層ceng,破po壞huai腸chang壁bi組zu織zhi,引yin起qi腸chang壁bi炎yan症zheng。病bing鱔shan體ti質zhi瘦shou弱ruo,食shi欲yu大da減jian,嚴yan重zhong時shi黃huang鱔shan常chang常chang掙zheng紮zha竄cuan跳tiao。防fang治zhi方fang法fa:每百公斤黃鱔用90%晶體敵百蟲10克,拌入豆餅3公斤,製成藥丸投喂,連續投喂3-5天即可。
五、缺que氧yang症zheng。此ci症zheng多duo發fa生sheng於yu高gao溫wen天tian氣qi,由you於yu鱔shan池chi中zhong溫wen度du較jiao高gao,耗hao氧yang較jiao多duo,導dao致zhi鱔shan池chi缺que氧yang,同tong時shi,因yin水shui麵mian高gao溫wen,黃huang鱔shan無wu法fa探tan頭tou呼hu吸xi空kong氣qi,導dao致zhi黃huang鱔shan頻pin繁fan探tan頭tou於yu洞dong外wai,造zao成cheng肌ji體ti呼hu吸xi功gong能neng紊wen亂luan,最zui終zhong衰shuai竭jie死si亡wang。預yu防fang方fang法fa:經常巡池,抽查鱔體、鱔池水質,一旦發病,立即換水,並配合底泥加強增氧措施。
手機版




