Cov yam ntxwv loj hlob ntawm cws thiab crab tsiaj muaj cov yam ntxwv dhia, thiab tsuas yog tom qab molting tuaj yeem hloov lawv txoj kev loj hlob.Ntxiv cws thiab crab loj hlob txhawb cov tshuaj hormones, tseem hu uaecdysterone, pub tuaj yeem ua rau cw thiab crabs molt tam sim ntawd, ua kom cov txheej txheem molting, txhim kho tus nqi ciaj sia thiab synchronization ntawm molting, thiab ua tiav lub hom phiaj ntawm kev loj hlob sai.
1 、 Shelling thiab loj hlob
Kev loj hlob ntawm cws yuav tsum vam khom lub plhaub: qhov kev loj hlob ntawm South American cov cw dawb = plhaub tus nqi × Kev loj hlob thiab qhov hnyav nce tus nqi.Lub plhaub tus nqi yog cuam tshuam rau theem kev loj hlob ntawm cws thiab dej zoo ib puag ncig yam tseem ceeb.
Thaum ib puag ncig tsim nyog, cw kib yuav tsum tau muab pov tseg ib zaug txhua 30-40 teev, thiab larvae hnyav 1-5 grams yuav tsum tau plhaub ib zaug txhua 4-6 hnub.Prawns hnyav tshaj 15 grams feem ntau shelled ib zaug txhua ob lub lis piam, feem ntau. Nyob rau hauv thawj ib nrab ntawm hmo ntuj nyob ib ncig ntawm thawj thiab kaum tsib hnub ntawm lub lunar xyoo tshiab, nyob rau hauv lub caij nplooj ntoos hlav thiab neap tides; Thaum huab cua dheev hloov, nws feem ntau tshwm sim ua ntej kaj ntug.Lub plhaub hardens nyob rau hauv 1-2 hnub.
Qhov ib txwm dehulling zaus ntawm cov ntsev tsawg thiab qhov kub thiab qhov tsim nyog kuj tuaj yeem ua rau qhov kev loj hlob tuaj.Cov khoom noj khoom haus ntawm cws tuaj yeem raug plhaub ntau zaus, uas ua rau lub voj voog me me rau kev noj qab haus huv ntawm cws.
2 、 Lub luag haujlwm tseem ceeb ntawmecdysterone
1.Nws tuaj yeem ua raws sij hawm lub plhaub cw thiab crabs, tseem ceeb ceev lawv txoj kev loj hlob, thiab txhim kho cov khoom noj rov qab.
2. Txhawb nqa lub plhaub thiab ua xua ntawm cws thiab crabs, thiab txhim kho cov khoom specifications thiab qib.
3.Txhim kho cov kab mob phem los ntawm cw thiab roob ris crustaceans, txhim kho cov kab mob tiv thaiv, txhawb cov metabolism thiab protein synthesis hauv lub cev, thiab txhim kho kev ntxhov siab.
4.Nws muaj thermal stability thiab cov khoom xyaw zoo yuav tsis hloov lossis poob thaum lub sij hawm granulation txheej txheem ntawm cov mis pub.
Kev piav qhia: Lub peev xwm ua tau zoo thiab cov ntawv thov tau hais hauv kab lus no yog tag nrho los ntawm cov ntaub ntawv muaj nyob rau pej xeem.
Post lub sij hawm: Aug-08-2023