Ukugqobhozalikhonkco eliyimfuneko ekukhuleni kweecrustaceans.I-Penaeus vannamei idinga i-molt amaxesha amaninzi ebomini bayo ukuhlangabezana nomgangatho wokukhula komzimba.

Ⅰ, Ukunyibilika kwemithetho kaPenaeus vannamei

Umzimba kaPenaeus vannamei kufuneka unyibilike ngamaxesha athile ukuze ufezekise injongo yokukhula.Xa ubushushu bamanzi bungama-28 ℃, iishrimps ezincinci ziyamolt kanye kwiiyure ezingama-30 ~ 40;Iimbasa ezincinci ezinobunzima be-1 ~ 5g molt kanye ngeentsuku ezi-4 ukuya kwezi-6;Iiprawn ezingaphezu kwe-15g ngokubanzi zimolt kanye rhoqo kwiiveki ezi-2.

Ⅱ, Uhlalutyo lweempawu ezininzi kunye nezizathu zokunyibilika

1. Iimpawu ezininzi zexesha lokubola

Iqokobhe le-shrimp linzima kakhulu, elibizwa ngokuba yi "iron skin shrimp".Inesisu esingenanto okanye isisu esishiyekileyo.Ayinakubona ngokucacileyo i-intestinal tract, i-pigment ebusweni bomzimba inzulu, kwaye i-pigment ephuzi iyanda kakhulu.Ngokukodwa, amacala omabini e-operculum amnyama, obomvu kunye nophuzi, i-gill filaments idumbile, imhlophe, iphuzi kunye nomnyama, kwaye amanyathelo kunye neenyawo zigqunywe ngamabala abomvu.I-outline ye-hepatopancreas icacile, ayidumbanga okanye i-atrophic, kwaye i-outline yendawo yentliziyo ayicacanga kwaye inodaka oluphuzi.

2. I-Shrimp idla ngokuba ne-ciliates ezininzi

Igobolondo le-shrimp yi-double-layer skin, enokususwa ngokujija ulusu ngobunono.Ulusu lubuthathaka kakhulu, olubizwa ngokuba yi "shrimp double skin" okanye "Crispy Shrimp".Ibhityile, inemelanin ethe kratya kumphezulu womzimba, ukudumba kunye nezilonda kwimicu yegill, ubukhulu becala emthubi namnyama.Amathumbu angenanto kunye nesisu, amandla abuthathaka.Ukungqengqa ecaleni kwedama okanye ukuzula-zula emanzini, kubonisa iimpawu ze-hypoxia.Ukuqonda utshintsho lwemo engqongileyo, kunye notshintsho oluncinci kunye nokwanda okukhulu kokusweleka.

3. Inkqubo yokunyibilikisa egudileyo inokwahlulwa ngokwezi zigaba zintathu zilandelayo:

I-1) Ngaphambi kokuba i-molting, ibhekisela kwixesha elivela ekupheleni kokutshatyalaliswa kokugqibela ukuya ekuqaleni kwe-molting elandelayo.Ixesha liyahluka ngokobude bomzimba, ngokubanzi phakathi kweentsuku ezili-12 kunye ne-15.Ngeli xesha, uPenaeus vannamei waqokelela isondlo, ngakumbi icalcium.

2) Molting, imizuzwana embalwa kuphela ukuya ngaphezu kwemizuzu elishumi.I-Molting idla amandla amaninzi.Ukuba i-shrimp ibuthathaka okanye ukunqongophala kwesondlo emzimbeni, ihlala i-molt ngokungagqibekanga kwaye yenze iqokobhe eliphindwe kabini.

I-3) Emva kokunyibilika, ibhekisela kwixesha apho ulusu olutsha lutshintsha ukusuka kwi-soft ukuya kunzima, kwaye ixesha limalunga ne-2 ~ 1.5 iintsuku (ngaphandle kwezithole ze-shrimp).Emva kokuba iqokobhe elidala likhutshiwe, iqokobhe elitsha alinakukwazi ukubala kwangethuba, ngaloo ndlela lenze "iqokobhe elithambileyo".

4. Ukuwohloka komgangatho wamanzi kunye nokungabikho kwesondlo zizinto eziphambili zesifo

Ukuwohloka komgangatho wamanzi kaninzi kwenzeka kumadama anombala wamanzi ashinyene kakhulu, kwaye ukungafihli kuphantse kube ngu-zero.Kukho iifilimu zeoli kunye nenani elikhulu le-algae efileyo phezu kwamanzi, kwaye ngamanye amaxesha kukho ukugqabhuka kwevumba lentlanzi phezu kwamanzi.Ngeli xesha, i-algae iphindaphindeka ngamanani amakhulu, kwaye i-oksijini echithwe phezu kwamanzi ixutywa kakhulu emini;Ebusuku, inani elikhulu le-algae liba yinto edla i-oksijini, ekhokelela kwi-oksijini ephantsi echithwe emazantsi echibini, echaphazela ukutya kwe-shrimp kunye ne-molting.Ixesha elide, iqokobhe linzima kakhulu.

5. Ukuguquka kwemozulu kunye netyhefu ephuma ngaphandle kunokubangela ukunyibilika okungaqhelekanga kwe-shrimp, ekwangumba wokwenziwa kwe "shrimps yesikhumba esiphindwe kabini" kunye "neqokobhe elithambileyo".

Ⅲ, Ukubaluleka kweukuxhaswa kwe-calciumngexesha lokunyibilika kwePenaeus vannamei:

I-calcium egcinwe kumzimba we-shrimp ilahlekile kakhulu.Ukuba ihlabathi langaphandle alixhaswanga ngexesha, i-Penaeus vannamei ayikwazi ukufunxa i-calcium enikezelwa ngumzimba wamanzi, okulula ukubangela ukungaphumeleli kwe-shrimp molting.Ixesha leqokobhe elinzima emva kokunyibilika lide kakhulu.Ukuba ihlaselwe yibhaktheriya okanye igxininiswe ngeli xesha, kulula kakhulu ukufa kwiibhetshi.Ngoko ke, kufuneka songeze i-calcium kumzimba wamanzi ngeendlela zokwenziwa.I-Shrimp inokufunxa i-calcium kunye namandla kumzimba wamanzi ngokuphefumla kunye nokungena komzimba.

Potassium diformate +calcium propionateukunceda inzala yamanzi kunye ne-calcium supplement ayinakukunceda kuphela i-penaeus vannamei ukuba i-molt ihambe kakuhle, kodwa inqande ibhaktheriya kwaye ixhathise uxinzelelo, ngaloo ndlela iphucula inzuzo yokulima i-shrimp.