Ongororo ichangoburwa yakaitwa neAquaculture Research Institute yakaratidza mhedzisiro inovimbisa pakushandiswa kwetrichloroisocyanuric acid(TCCA) mukurima shrimp.TCCA mushonga wekuuraya utachiona unoshandiswa zvakanyanya uye kemikari yekurapa mvura, asi mukana wayo wekushandisa mune zvemumvura wanga usati wanyatsoongororwa kusvika zvino.
Chidzidzo ichi, icho chakatsigirwa neNational Science Foundation, chine chinangwa chekuongorora mhedzisiro yeTCCA pakukura uye hutano hwePacific white shrimp (Litopenaeus vannamei) mune recirculating aquaculture system.Vatsvakurudzi vakaedza zvakasiyana-siyana zveTCCA mumvura, kubva pa0 kusvika ku5 ppm, uye vakatarisa shrimp kwenguva yemavhiki matanhatu.
Mhedzisiro yacho yakaratidza kuti shrimp mumatangi akabatwa neTCCA aive nemazinga akanyanya ekupona uye huwandu hwekukura kupfuura avo vari muboka rekutonga.Nhamba yepamusoro yeTCCA (5 ppm) yakagadzira migumisiro yakanakisisa, nehuwandu hwehupenyu hwe93% uye huremu hwekupedzisira hwe7.8 gramu, zvichienzaniswa nehuwandu hwekupona hwe73% uye huremu hwekupedzisira hwe5.6 gramu muboka rekutonga.
Pamusoro pemhedzisiro yayo yakanaka pakukura kwe shrimp uye kurarama, TCCA yakaratidzawo kushanda mukudzora kukura kwehutachiona hunokuvadza uye tupukanana mumvura.Izvi zvakakosha mukurima shrimp, sezvo hutachiona uhu hunogona kukonzera zvirwere zvinogona kuparadza huwandu hwese hwe shrimp.
Kushandiswa kweTCCAmu aquaculture haisi pasina kukakavara, zvisinei.Mamwe mapoka ezvemamiriro ekunze aratidza kushushikana nezve mukana weTCCA kugadzira zvinokuvadza byproducts kana ichiita ne organic zvinhu mumvura.Vatsvagiri vari kuseri kwechidzidzo vanobvuma kushushikana uku, asi votaura kuti mhedzisiro yavo inoratidza kuti TCCA inogona kushandiswa zvakachengeteka uye nemazvo mukurima kwemvura munzvimbo dzakafanira.
Nhanho inotevera yevaongorori ndeyekuita zvimwe zvidzidzo kuongorora mhedzisiro yeTCCA yenguva refu pakukura kweshrimp, hutano, uye nharaunda.Vanotarisira kuti zvavakawana zvichabatsira kumisikidza TCCA sechishandiso chakakosha chevarimi veshrimp pasirese, kunyanya munzvimbo dzine zvirwere nezvimwe zvakatipoteredza zvinokonzeresa kutyisa kwevanhu.
Pakazara, chidzidzo ichi chinomiririra danho rakakosha kumberi mukushandiswa kweTCCA mune zve aquaculture.Nekuratidza kugona kwayo kuvandudza shrimp kukura uye kurarama, nepo ichidzora hutachiona hunokuvadza, vaongorori vakaratidza kuti TCCA ine basa rakakosha rekuita mune ramangwana rekugara shrimp kurima.
Nguva yekutumira: Kubvumbi-28-2023