南美白對蝦養殖自2011年以後疾病愈演愈烈, 2014年下半年整個華南對蝦養殖一片蕭條,2015年早造蝦自放苗以來,又開始出現大麵積疾病爆發。原來許多放下蝦苗就能收獲的區域卻成了養蝦人的夢魘。蝦病從比較常見白斑、紅體、偷死病害到最近幾年出現的跳跳死、白便以及生長緩慢。病因也眾說紛紜,有副溶血弧菌說、藻類毒性說、亞硝酸鹽說、纖毛蟲說、weiliangyuansushuodengdeng。zongzhi,xianzainayitiaoyanyanyixidexiageigegezhuanjiatantao,dajiahuigeinibutongdechulifangan,dandoumeiyoushizudebawo。yangxiashibaiyiliangcibingbukepa,kepadeshiwomenbuzhidaowomenshiwuzainali,naliyufangbudaowei,xiayizaogairuhegaishan,yincidajiazhiyoumangmugenfeng,shuiyangdehaojiuchenglefengxiangbiao,dantongyigerenzuodeshuidouhuiqianchawanbie,womenyouzenmemofangdedao。haodeyangzhihuhuijishizongjiehefaxian,wangwangzaimouyidianyouhenqiangdeguanzhudu,pirupH、弧菌或者纖毛蟲,定期檢測,給自己養殖規劃做指導。
台tai山shan養yang蝦xia高gao手shou羅luo本ben茂mao在zai行xing業ye會hui議yi上shang說shuo老lao方fang法fa解jie決jue不bu了le新xin問wen題ti,但dan新xin方fang法fa能neng夠gou解jie決jue老lao問wen題ti。這zhe個ge混hun亂luan的de行xing業ye,我wo們men傳chuan統tong的de經jing驗yan往wang往wang扼e殺sha了le我wo們men麵mian對dui新xin問wen題ti的de處chu理li方fang案an。
一、農場經營的思路
養蝦是一個辛苦的工作,合理調動養殖工人的積極性,為他們畫一張大餅是每一個老板的必修課。養殖需要責任心、信心、以yi及ji樂le觀guan的de心xin態tai相xiang對dui更geng容rong易yi成cheng功gong。因yin此ci蝦xia塘tang管guan理li工gong作zuo應ying該gai是shi最zui主zhu要yao的de工gong作zuo,調tiao動dong每mei一yi個ge工gong人ren的de管guan理li情qing緒xu,加jia以yi利li潤run誘you導dao,但dan宏hong觀guan上shang又you要yao按an照zhao規gui劃hua執zhi行xing到dao位wei。養yang殖zhi規gui劃hua是shi養yang殖zhi最zui重zhong要yao的de環huan節jie,應ying根gen據ju水shui質zhi、底質、池塘條件、季節等等選擇高密度養殖還是低密度養殖或者魚蝦混養,消毒、肥水、放苗、收shou獲huo大da約yue時shi間jian點dian應ying該gai規gui劃hua好hao。不bu能neng著zhe著zhe急ji急ji為wei了le拿na苗miao而er匆cong匆cong做zuo水shui,更geng不bu能neng不bu切qie實shi際ji選xuan擇ze超chao高gao密mi度du養yang殖zhi。縱zong觀guan這zhe幾ji年nian成cheng功gong者zhe,選xuan擇ze冬dong棚peng養yang蝦xia者zhe、高位塘大塘改建小塘者、低密度養大蝦者、魚蝦混養者相對成功率更高。養蝦是一個理性的行業,單純的靠運氣來博是行不通的,因此,合理規劃養殖場的生產安排、人員調動甚至比養蝦技術環節還要重要。
二、放苗時機的掌控
shuichanyangzhishuyunongyedefanchou,nongyedefengshouwangwangyutianqiyouzhezhijiedeguanxi。bizhezaixiamianpaotangdeshihoujingchanghuiyudaozhezhongxianxiang,gaidiquzheduanshijianfangmiao,yangchengjilvpubianpiangao,eryouxieshijianduanfangmiaozechenggonglvhendi。piruhuananquyupubianqingmingqianhoufangmiao,erjinnianshouyanzhongeerninuoxianxiangyingxiang,qihouyichang,gaiduanshijianfangmiaofanerbushihenlixiang。ershounuandongyingxiang,bufenquyugaoweitangfangmiaojiaozaozhexiangduichenggong。huananyouxieyangzhihugenjulinianyangzhijingyan,huixuanzeduanwujieqianhoufangmiao,yinianyangyizaodaxiadeyangzhisilu。suoyiyoujingyandeyangzhihuhuigenjuliniantianqitedianjiehejinniantianqibianhua,jinshenxuanzefangmiaoshijian。kanlaihuiyangxiadehaideshigeqixiangxuejia
三、前期水質處理
由(you)於(yu)養(yang)殖(zhi)水(shui)質(zhi)的(de)富(fu)營(ying)養(yang)化(hua),養(yang)殖(zhi)戶(hu)選(xuan)擇(ze)肥(fei)水(shui)產(chan)品(pin)普(pu)遍(bian)選(xuan)擇(ze)碳(tan)肥(fei)較(jiao)多(duo),選(xuan)擇(ze)有(you)機(ji)肥(fei)較(jiao)少(shao),而(er)且(qie)水(shui)肥(fei)起(qi)來(lai)短(duan)短(duan)幾(ji)天(tian)就(jiu)開(kai)始(shi)放(fang)苗(miao)。相(xiang)對(dui)肥(fei)起(qi)來(lai)的(de)水(shui)藻(zao)相(xiang)對(dui)單(dan)一(yi),小(xiao)型(xing)藻(zao)類(lei)較(jiao)多(duo),在(zai)早(zao)春(chun)季(ji)節(jie)往(wang)往(wang)會(hui)存(cun)在(zai)pH持chi久jiu較jiao高gao,造zao成cheng對dui蝦xia鰓sai部bu腐fu蝕shi嚴yan重zhong,單dan一yi藻zao類lei抗kang應ying激ji性xing差cha,天tian氣qi變bian化hua往wang往wang伴ban隨sui著zhe大da量liang藻zao類lei死si亡wang,而er體ti質zhi較jiao差cha的de蝦xia喜xi歡huan攝she食shi死si藻zao,加jia重zhong肝gan髒zang負fu擔dan,往wang往wang在zai放fang苗miao20天(tian)開(kai)始(shi)出(chu)現(xian)偷(tou)死(si)現(xian)象(xiang)。養(yang)殖(zhi)前(qian)期(qi)做(zuo)水(shui)不(bu)夠(gou)穩(wen)定(ding),藻(zao)相(xiang)單(dan)一(yi),遇(yu)到(dao)天(tian)氣(qi)異(yi)常(chang)水(shui)質(zhi)波(bo)動(dong)很(hen)大(da),造(zao)成(cheng)養(yang)殖(zhi)前(qian)期(qi)苗(miao)種(zhong)成(cheng)活(huo)率(lv)較(jiao)差(cha)。現(xian)在(zai)有(you)些(xie)人(ren)前(qian)期(qi)做(zuo)水(shui)時(shi)間(jian)較(jiao)長(chang),水(shui)肥(fei)起(qi)來(lai)之(zhi)後(hou),每(mei)天(tian)仍(reng)持(chi)續(xu)補(bu)充(chong)發(fa)酵(jiao)有(you)機(ji)質(zhi)穩(wen)定(ding)水(shui)質(zhi),如(ru)水(shui)產(chan)誘(you)食(shi)酵(jiao)母(mu)配(pei)合(he)乳(ru)酸(suan)菌(jun)發(fa)酵(jiao)米(mi)糠(kang)、粉料、糖蜜等等,促進水穩定不變化,池塘中浮遊動物較為豐富,這個過程可能持續5-20天,之後才選擇放苗。或者引進養殖較好的老塘水作為部分水源。避免前期藻相單一,pH高,提高蝦塘前期藻類抗天氣變化能力是每一個養蝦從業者應該重視的問題。因此,每天定時檢查pH會給我們一個定向指導。
四、益生菌調控及其營養物質的使用
目(mu)前(qian),利(li)用(yong)益(yi)生(sheng)菌(jun)來(lai)穩(wen)控(kong)水(shui)質(zhi)已(yi)經(jing)得(de)到(dao)整(zheng)個(ge)行(xing)業(ye)的(de)認(ren)同(tong),但(dan)在(zai)潑(po)灑(sa)菌(jun)製(zhi)劑(ji)的(de)同(tong)時(shi),其(qi)在(zai)池(chi)塘(tang)中(zhong)成(cheng)活(huo)率(lv)及(ji)發(fa)揮(hui)的(de)功(gong)能(neng)卻(que)鮮(xian)有(you)人(ren)研(yan)究(jiu),養(yang)殖(zhi)戶(hu)更(geng)不(bu)得(de)而(er)知(zhi)。比(bi)較(jiao)切(qie)實(shi)有(you)效(xiao)的(de)方(fang)法(fa)是(shi)潑(po)灑(sa)菌(jun)製(zhi)劑(ji)的(de)同(tong)時(shi),適(shi)度(du)補(bu)充(chong)營(ying)養(yang)物(wu)質(zhi)促(cu)進(jin)菌(jun)的(de)繁(fan)殖(zhi)利(li)用(yong)。如(ru)紅(hong)糖(tang)、葡萄糖、低聚糖、多維等。芽孢杆菌和蛭弧菌適合每隔7-15天定期潑灑,來分解有機質和裂解弧菌,芽孢杆菌適合紅糖活化,蛭弧菌適合低聚糖來促進繁殖,水質老化、泡沫較多、排汙口較臭可用乳酸菌調控,可選擇米糠、紅糖或葡萄糖簡單發酵潑灑。藻類繁殖過旺、水色過濃、硫化氫超標可采用光合細菌調控,可配合腐植酸鈉等潑灑。
五、飼料內服
目前,對蝦疾病主要以消化係統疾病為主,如肝病、changweibingdeng,yinci,helibanfusiliaoshiyouxiaoyufangxiaohuadaojibingdetujingzhiyi。youqishidibujiaochadechitang,siliaochenjiangdaojuduceng,dibuyouhaixijunjiyouduwuzhigengrongyizhanfudaosiliaoshangqu,helibanfusiliaonenggouyouxiaohuanjiedibuyouhaiwuzhideduhai。piruwomenzongjiedebaogansijiantao“肽菌素+低聚糖863+肝舒+速調速補”,能夠有效恢複肝細胞生長和代謝,有效緩解腫肝、肝輕微萎縮現象。健腸四件套“產酶益生素+水產誘食酵母+強效EM+電解活性多維”等,能夠促進腸道消化吸收,腸道明顯增粗,攝食較為旺盛。
六、是否要消毒
有(you)時(shi)候(hou)蝦(xia)出(chu)現(xian)問(wen)題(ti),單(dan)純(chun)的(de)通(tong)過(guo)調(tiao)理(li)水(shui)質(zhi)時(shi)間(jian)往(wang)往(wang)較(jiao)慢(man),拖(tuo)延(yan)了(le)有(you)效(xiao)的(de)治(zhi)療(liao)時(shi)間(jian),尤(you)其(qi)是(shi)高(gao)密(mi)度(du)養(yang)殖(zhi)池(chi)塘(tang)。譬(pi)如(ru)蝦(xia)剛(gang)放(fang)苗(miao)到(dao)開(kai)始(shi)積(ji)極(ji)主(zhu)動(dong)攝(she)食(shi)配(pei)合(he)餌(er)料(liao)期(qi)間(jian),肝(gan)髒(zang)負(fu)擔(dan)加(jia)重(zhong),往(wang)往(wang)會(hui)出(chu)現(xian)腫(zhong)肝(gan)現(xian)象(xiang),此(ci)時(shi)用(yong)清(qing)肝(gan)解(jie)毒(du)的(de)中(zhong)藥(yao)產(chan)品(pin)如(ru)“本草固本康”或“菌毒雙克”來處理效果相對較好。如高位塘蝦出現偷死發光現象,要采用不同消毒劑連消3遍效果較好,再開始解毒培水工作。土塘出現偷死,可以采用水體消毒和底部消毒同時處理,如“聚維酮碘”配合“臭氧水安”,內服中藥等保肝產品等。蝦病發病速度快,往往不給我們有效的治療時間,因此我們需要早點發現蝦塘的細節變化,如有蝦殼飄出、晚上燈光照去蝦跳、看料台蝦易抽筋、黃鰓、爬邊、腸道彎曲等,等我們發現明顯減料、開飛機、偷死往往再開始治療已沒有時間了。
七、弧菌檢測是否必要性
有you些xie人ren對dui弧hu菌jun檢jian測ce甚shen是shi推tui崇chong,有you的de則ze嗤chi之zhi以yi鼻bi,而er最zui主zhu要yao的de問wen題ti是shi往wang往wang我wo們men出chu了le問wen題ti才cai檢jian測ce弧hu菌jun,或huo者zhe蝦xia吃chi料liao明ming顯xian減jian慢man才cai檢jian測ce弧hu菌jun。池chi塘tang的de總zong菌jun數shu缺que乏fa檢jian測ce,盲mang目mu的de偶ou爾er檢jian測ce弧hu菌jun,通tong過guo一yi二er次ci的de弧hu菌jun檢jian測ce指zhi導dao生sheng產chan工gong作zuo往wang往wang得de不bu償chang失shi。消xiao毒du較jiao多duo的de池chi塘tang,往wang往wang生sheng態tai環huan境jing變bian動dong較jiao大da,菌jun群qun多duo樣yang性xing失shi衡heng,有you必bi要yao養yang成cheng定ding期qi檢jian測ce弧hu菌jun的de習xi慣guan,相xiang反fan,定ding期qi應ying用yong益yi生sheng菌jun來lai調tiao控kong水shui質zhi,應ying用yong益yi生sheng菌jun種zhong類lei較jiao為wei豐feng富fu的de池chi塘tang往wang往wang菌jun相xiang較jiao為wei平ping衡heng,單dan純chun檢jian測ce弧hu菌jun往wang往wang有you誤wu區qu,需xu要yao配pei合he總zong菌jun檢jian測ce工gong作zuo。
八、肉眼看水的欺騙性
養(yang)蝦(xia)都(dou)是(shi)通(tong)過(guo)看(kan)水(shui)養(yang)蝦(xia),而(er)看(kan)水(shui)養(yang)蝦(xia)存(cun)在(zai)很(hen)嚴(yan)重(zhong)的(de)誤(wu)區(qu),今(jin)年(nian)蝦(xia)發(fa)病(bing)普(pu)遍(bian)水(shui)色(se)較(jiao)好(hao),單(dan)一(yi)藻(zao)類(lei)尤(you)其(qi)是(shi)小(xiao)型(xing)藻(zao)類(lei)營(ying)造(zao)的(de)水(shui)色(se)看(kan)起(qi)來(lai)很(hen)鮮(xian)亮(liang),但(dan)蝦(xia)卻(que)很(hen)容(rong)易(yi)發(fa)病(bing)。有(you)些(xie)區(qu)域(yu)前(qian)期(qi)不(bu)營(ying)造(zao)良(liang)好(hao)水(shui)色(se),水(shui)濁(zhuo)濁(zhuo)的(de),蝦(xia)反(fan)而(er)好(hao)養(yang)。良(liang)好(hao)水(shui)色(se)是(shi)我(wo)們(men)以(yi)往(wang)養(yang)蝦(xia)成(cheng)功(gong)的(de)重(zhong)要(yao)經(jing)驗(yan),但(dan)良(liang)好(hao)水(shui)色(se)如(ru)果(guo)通(tong)過(guo)顯(xian)微(wei)鏡(jing)觀(guan)察(cha)的(de)話(hua)會(hui)千(qian)差(cha)萬(wan)別(bie),肉(rou)眼(yan)觀(guan)察(cha)會(hui)存(cun)在(zai)很(hen)大(da)誤(wu)區(qu)。需(xu)要(yao)我(wo)們(men)通(tong)過(guo)底(di)質(zhi)、蝦xia吃chi料liao及ji水shui質zhi指zhi標biao來lai相xiang互hu協xie調tiao指zhi導dao。我wo們men現xian在zai檢jian測ce水shui的de各ge項xiang指zhi標biao往wang往wang缺que乏fa連lian貫guan性xing,單dan一yi指zhi標biao不bu理li想xiang就jiu拚pin命ming來lai調tiao,往wang往wang造zao成cheng水shui波bo動dong較jiao大da,檢jian測ce水shui質zhi最zui好hao形xing成cheng連lian貫guan檢jian測ce的de習xi慣guan,及ji時shi發fa現xian水shui質zhi的de輕qing微wei波bo動dong,快kuai速su處chu理li消xiao滅mie於yu萌meng芽ya。
結語
總zong之zhi,對dui蝦xia養yang殖zhi現xian在zai形xing成cheng了le百bai家jia爭zheng鳴ming的de養yang殖zhi思si路lu和he方fang法fa,隻zhi有you吃chi透tou自zi己ji池chi塘tang底di質zhi及ji水shui質zhi特te點dian,結jie合he當dang地di天tian氣qi及ji季ji節jie變bian化hua,做zuo好hao自zi己ji的de養yang殖zhi規gui劃hua,對dui蝦xia苗miao有you一yi定ding的de可ke控kong度du,關guan注zhu自zi己ji認ren可ke的de關guan鍵jian點dian,相xiang信xin會hui越yue來lai越yue有you信xin心xin。
手機版




