I. Cov txheej txheem physiological thiab cov cai ntawm cw molting
Cov txheej txheem molting ntawm cw yog ib theem tseem ceeb hauv lawv txoj kev loj hlob thiab kev loj hlob. Thaum lub sij hawm kev loj hlob ntawm cw, raws li lawv lub cev loj hlob, lub qub plhaub yuav txwv lawv txoj kev loj hlob ntxiv. Yog li ntawd, lawv yuav tsum tau mus rau molting los tsim ib lub plhaub tshiab thiab loj dua. Cov txheej txheem no yuav tsum tau siv zog thiab muaj qee qhov kev xav tau ntawm cov khoom noj khoom haus, xws li cov zaub mov xws li calcium thiab magnesium, uas yog siv rau kev tsim thiab hardening ntawm lub plhaub tshiab; thiab qee yam khoom uas txhawb kev loj hlob thiab tswj kev ua haujlwm ntawm lub cev kuj tseem xav tau los xyuas kom meej qhov kev vam meej ntawm cov txheej txheem molting.
DMTyog ib qho zoo ligand rau dej saj receptors, uas muaj zog stimulating nyhuv ntawm saj thiab olfactory qab haus huv ntawm cov tsiaj nyob rau hauv dej, li no accelerating tus ceev ceev pub ntawm cov tsiaj nyob rau hauv dej thiab ua rau lawv noj kom tsawg nyob rau hauv kev ntxhov siab. Lub caij no, DMT muaj cov nyhuv zoo li molding, muaj zog molding zoo li kev ua, uas tuaj yeem ua tau nce molting ceev ntawm cws thiab crab,tshwj xeeb tshaj yog nyob rau nruab nrab thiab tom qab theem ntawm cws thiab crab ua liaj ua teb, cov nyhuv yog pom tseeb dua
1. DMPT (Dimethyl-β-propiothetin)
Ntsiab Function
- Kev noj zaub mov muaj zog: Ua kom muaj kev noj qab haus huv hauv cov ntses, cws, crabs, thiab lwm hom dej, txhim kho kev noj zaub mov.
- Kev txhawb nqa kev loj hlob: Cov pab pawg uas muaj leej faj (—SCH₃) txhim kho cov protein synthesis, ua kom cov kev loj hlob sai.
- Kev txhim kho nqaij zoo: Txo cov roj deposition thiab nce umami amino acids (xws li, glutamic acid), txhim kho nqaij tawv.
- Cov teebmeem los tiv thaiv kev ntxhov siab: txhawb kev ua siab ntev rau ib puag ncig kev ntxhov siab xws li hypoxia thiab cov dej qab ntsev hloov pauv.
Hom phiaj
- Ntses (piv txwv li, carp, crucian carp, hiav txwv bass, loj daj croaker)
- Crustaceans (piv txwv li, cws, crabs)
- Hiav txwv cucumbers thiab mollusks
Pom zoo noj
- 50-200 mg / kg pub (kho raws li hom thiab dej).
2. DMT (Dimethylthiazole)
Ntsiab Function
- Kev noj zaub mov tsis zoo: Qhia qhov cuam tshuam rau qee cov ntses (xws li salmonids, ntses bass thaj tsam), txawm tias tsis muaj zog dua DMPT.
- Antioxidant zog: Cov qauv thiazole tuaj yeem txhim kho kev noj qab haus huv ntawm kev ua haujlwm antioxidant.
- Muaj peev xwm tiv thaiv kab mob: Qee cov kev tshawb fawb qhia tias thiazole derivatives inhibit cov kab mob tshwj xeeb.
Hom phiaj
- Feem ntau siv rau hauv cov ntses pub, tshwj xeeb tshaj yog rau hom dej txias (piv txwv li, salmon, trout).
Pom zoo noj
- 20-100 mg / kg pub (qhov koob tshuaj zoo tshaj plaws yuav tsum muaj kev lees paub tshwj xeeb ntawm hom).
Sib piv: DMPT vs. DMT
| Feature | DMPT | DMT |
|---|---|---|
| Tshuaj npe | Dimethyl-β-propiothetin | Dimethylthiazole |
| Lub luag haujlwm tseem ceeb | Pub attractant, kev loj hlob txhawb | Me me attractant, antioxidant |
| Kev ua tau zoo | ★★★★★ (Ntaus) | ★★★☆☆ (Nruab nrab) |
| Hom phiaj | Ntses, cws, crabs, mollusks | Feem ntau yog ntses (piv txwv li, salmon, bass) |
| Nqi | Siab dua | qis |
Sau ntawv rau Daim Ntawv Thov
- DMPT zoo dua tab sis costlier; xaiv raws li kev xav tau ua liaj ua teb.
- DMT xav tau kev tshawb fawb ntxiv rau cov teebmeem tshwj xeeb.
- Ob leeg tuaj yeem ua ke nrog lwm cov tshuaj ntxiv (xws li, amino acids, bile acids) los txhim kho kev ua haujlwm.
Post lub sij hawm: Aug-06-2025
