Izimpawu zokukhula kwezilwane zezimfanzi kanye nenkalankala zinezici zokugxuma, futhi kuphela ngemva kokuncibilika lapho ukukhula kwazo kungashintsha.i-ecdysterone,ukondla kungenza izimfanzi kanye nezinkalankala molt ngokushesha, ukusheshisa inqubo molting, ngcono izinga lokusinda nokuvumelanisa of molting, futhi ufinyelele umgomo ukukhula ngokushesha.
1, Ukugoba nokukhula
Ukukhula kwezimfanzi kumele kuncike ekuqhutshweni kwamagobolondo:izinga lokukhula kwezimfanzi ezimhlophe zaseNingizimu Melika=izinga lamagobolondo×Izinga lokukhula nesisindo somzimba.Izinga lokugoba lihlobene nesigaba sokukhula sezimfanzi kanye nezici zemvelo zekhwalithi yamanzi.
Uma imvelo ifaneleka, ama-shrimp fry kufanele afakwe amagobolondo kanye njalo emahoreni angu-30-40, futhi izibungu ezinesisindo esingamagremu angu-1-5 kufanele zikhishwe kanye njalo ezinsukwini ezingu-4-6. engxenyeni yokuqala yobusuku cishe ezinsukwini zokuqala neshumi nanhlanu zonyaka omusha wenyanga, phakathi kwamagagasi asentwasahlobo kanye namagagasi aseduze;Lapho isimo sezulu sishintsha ngokuzumayo, ngokuvamile kwenzeka ngaphambi kokuntwela kokusa.Igobolondo liyaqina ezinsukwini ezingu-1-2.
Imvamisa evamile yokukhipha amanzi ngosawoti ophansi kanye nezinga lokushisa elifanele lingakhuphula izinga lokukhula.Ukudla okuphakelayo kwezimfanzi kungenziwa ngamagobolondo njalo, okufinyeza umjikelezo wokuzalanisa ukuze kukhule kahle izimfanzi.
2, Imisebenzi esemqoka yei-ecdysterone
1.Ingakwazi ukugoqa izimfanzi nezinkalankala ngesikhathi esifanele, isheshise ukukhula kwazo, futhi ithuthukise ukubuya kokuphakelayo.
2.Thuthukisa ukugoqa kanye nokungezwani komzimba nezimfanzi nezinkalankala, futhi uthuthukise ukucaciswa komkhiqizo namabanga.
3.Ukuqeda ngempumelelo ama-parasites ayingozi kuma-shrimp kanye ne-crab crustaceans, uthuthukise ukumelana nezifo, ukhuthaze umzimba kanye nokuhlanganiswa kwamaprotheni emzimbeni, futhi uthuthukise ukumelana nokucindezeleka.
4.Inokuqina okushisayo okuphezulu futhi izithako ezisebenzayo ngeke zishintshe noma zilahlekelwe phakathi nenqubo ye-granulation yokuphakelwa kwefomula.
Incazelo: Ukusebenza okunamandla kanye nezinhlelo zokusebenza ezishiwo kulesi sihloko konke kuvela ezincwadini ezitholakala esidlangalaleni.
Isikhathi sokuthumela: Aug-08-2023