Ucwaningo lwakamuva olwenziwe yi-Aquaculture Research Institute lukhombisile imiphumela ethembisayo yokusebenzisaI-Trichloroisocyanuric acid(TCCA) e-Shrimp Farming. I-TCCA iyi-distinfectant esetshenziswa kabanzi ye-distinfectant kanye namanzi, kepha amandla awo okusetshenziswa e-aquaculture ayengahlolwa kahle kuze kube manje.
Isifundo, esasixhaswa ngemali yeNational Science Foundation, okuhloswe ukuphenya ngemiphumela ye-TCCA ekukhuleni nasempilweni yePacific White Shrimp (iLopenaeus Vannamei) ohlelweni oluphindaphindekile lwe-Aquacuture). Abaphenyi bahlola ukugxila okuhlukile kwe-TCCA emanzini, esukela ku-0 kuye ku-5 ppm, futhi babheke i-shrimp isikhathi esingamasonto ayisithupha.
Imiphumela ikhombisile ukuthi i-shrimp emathangini aphathwa ama-TCCA yayinamazinga aphezulu okusinda kanye namazinga okukhula kunalawo aseqenjini elilawulayo. Ukuhlushwa okuphezulu kwe-TCCA (5 ppm) kukhiqize imiphumela emihle kakhulu, ngesilinganiso sokusinda esingu-93% kanye nesisindo sokugcina samagremu angama-7,8, kuqhathaniswa nesilinganiso sokusinda sama-73% kanye nesisindo sokugcina samagremu angu-5.6 eqenjini lokulawula.
Ngaphezu kwemiphumela yayo emihle ekukhuleni kwe-shrimp kanye nokusinda, i-TCCA nayo ibonakale ngempumelelo ukulawula ukukhula kwamagciwane alimazayo namagciwane emanzini. Lokhu kubalulekile ekulimaleni kwe-shrimp, njengoba la ma-pathogens angadala izifo ezingalimaza wonke abantu be-shrimp.
Ukusetshenziswa kweI-TCCAKu-aquaculture akunakuphikiswa, noma kunjalo. Amanye amaqembu ezemvelo azwakalise ukukhathazeka ngamathuba we-TCCA ukudala ama-byproducts ayingozi lapho ephendula ngento ephilayo emanzini. Abaphenyi abangemuva kocwaningo bayakuvuma lokhu kukhathazeka, kepha baveze ukuthi imiphumela yabo isikisela ukuthi i-TCCA ingasetshenziswa ngokuphepha nangempumelelo e-aquaculture ngokugxila okulungile.
Isinyathelo esilandelayo sabaphenyi ukuqhuba ezinye izifundo ukuze ziphenye imiphumela yesikhathi eside ye-TCCA ekukhuleni kwe-shrimp, impilo kanye nemvelo. Banethemba lokuthi abakutholile bazokusiza ukusungula i-TCCA njengethuluzi elibalulekile labalimi be-shrimp emhlabeni jikelele, ikakhulukazi ezifundeni lapho izifo kanye nezinye izinto zemvelo zibeka engcupheni enkulu yezingcweti ezibucayi.
Sekukonke, lolu cwaningo lumelela isinyathelo esibalulekile phambili ekusebenziseni i-TCCA e-aquaculture. Ngokubonisa amandla alo okuthuthukisa ukukhula kwe-shrimp nokusinda, ngenkathi futhi kulawulwa amagciwane alimazayo, abacwaningi bakhombisile ukuthi i-TCCA ineqhaza elibalulekile okufanele liyidlale ngokuzayo kokulima okuqhubekayo kwe-shrimp.
Isikhathi sePosi: APR-28-2023