I-Potassium dicarboxylateiyisengezo sokuqala sokudla esikhuthaza ukukhula okungeyona imithi elwa namagciwane esivunyelwe yi-European Union. Siyingxube ye-potassium dicarboxylate kanye ne-formic acid ngokusebenzisa isibopho se-hydrogen esiphakathi kwamamolekyuli. Sisetshenziswa kabanzi ezingulubeni ezincane kanye nasezingulubeni ezikhulisayo eziqedayo. Imiphumela yokuhlolwa kokudla ikhombisile ukuthi ukwengeza i-potassium dicarboxylate ekudleni kwezingulube kungakhuphula kakhulu ukukhuluphala kwezingulube futhi kunciphise inani lokufa okubangelwa ukutheleleka ngamagciwane. Ukwengeza i-potassium dicarboxylate ekudleni kwezinkomo kungathuthukisa nokukhiqiza ubisi lwezinkomo.

Kulolu cwaningo, imithamo ehlukene ye-i-potassium dicarboxylatekwenezelwe ekudleni kwe-Penaeus vannamei enamaprotheni aphansi, ukuze kuhlolwe i-ejenti ekhuthaza ukukhula engasebenzisi ama-antibiotic esebenza kahle futhi enobungani nemvelo.

Izimpahla nezindlela

1.1 okuphakelayo kokuhlola

Imiphumela yefomula yokudla okulingayo kanye nokuhlaziywa kwamakhemikhali iboniswe kuThebula 1. Kunezinhlobo ezintathu zokudla okulingayo, kanti okuqukethwe yi-potassium dicarboxylate kungu-0%, 0.8% kanye no-1.5% ngokulandelana.

1.2 i-shrimp yokuhlola

Isisindo somzimba sokuqala se-Penaeus vannamei sasingu-(57.0 ± 3.3) mg) C. Ukuhlolwa kwahlukaniswa ngamaqembu amathathu kanye nokuphindaphindwa kathathu eqenjini ngalinye.

1.3 Izindawo zokudla

Ukukhuliswa kwezimfanzi kwenziwa emakhejini anetha ngencazelo engu-0.8 mx 0.8 mx 0.8 M. Wonke amakheji anetha abekwe echibini lesamente eliyindilinga eligelezayo (eliyi-1.2 m ukuphakama, eliyi-16.0 m ububanzi).

1.4 Ukuhlolwa kokudla kwe-potassium formate

Amaqembu amathathu okudla (0%, 0.8% kanye no-1.5% we-potassium dicarboxylate) anikezwa ngokungahleliwe eqenjini ngalinye ngemva kokulinganisa izingcezu ezingu-30 / ibhokisi. Inani lokudla lalingu-15% wesisindo somzimba sokuqala kusukela osukwini loku-1 kuya osukwini lwe-10, 25% kusukela osukwini lwe-11 kuya osukwini lwe-30, kanye no-35% kusukela osukwini lwe-31 kuya osukwini lwe-40. Ukuhlolwa kwathatha izinsuku ezingu-40. Izinga lokushisa lamanzi lingu-22.0-26.44 ℃ kanti usawoti ungama-15. Ngemva kwezinsuku ezingu-40, isisindo somzimba salinganiswa futhi sabalwa, kanye nesisindo.

Imiphumela engu-2.2

Ngokusho kokuhlolwa kobuningi besitokisi, ubuningi besitokisi obufanele kakhulu babuyizinhlanzi ezingu-30 / ibhokisi. Izinga lokusinda kweqembu lokulawula lalingu-(92.2 ± 1.6)%, kanti izinga lokusinda kweqembu le-potassium diformate elingu-0.8% lalingu-100%; Kodwa-ke, izinga lokusinda kwe-Penaeus vannamei lehle laya ku-(86.7 ± 5.4)%, lapho izinga lokwengeza lenyuka laya ku-1.5%. I-coefficient yokudla nayo ibonise ukuthambekela okufanayo.

Ingxoxo engu-3

Kulolu cwaningo, ukwengeza i-potassium diformate kungathuthukisa ngempumelelo inzuzo yansuku zonke kanye nezinga lokusinda kwe-Penaeus vannamei. Umbono ofanayo wabekwa phambili lapho kungezwa i-potassium dicarboxylate ekudleni kwengulube. Kwaqinisekiswa ukuthi ukwengeza i-potassium diformate engu-0.8% ekudleni kwe-shrimp kwe-Penaeus vannamei kwaba nomphumela ongcono wokukhuthaza ukukhula. URoth et al. (1996) batusa ukwengeza okuhle kokudla kokudla kwengulube, okwakungu-1.8% ekudleni kokuqala, u-1.2% ekudleni kokulunyulwa kanye no-0.6% ekukhuleni nasekuqedeni izingulube.

Isizathu sokuthi i-potassium dicarboxylate ingakhuthaza ukukhula ukuthi i-potassium dicarboxylate ingafinyelela indawo yamathumbu ebuthakathaka ngokwe-alkaline ngokupha isisu sesilwane ngendlela ephelele, bese ibola ngokuzenzakalelayo ibe yi-formic acid bese ibumba, ibonise umphumela onamandla we-bacteriostatic kanye ne-bactericidal, okwenza umgudu wamathumbu wesilwane ubonakale "ungeyinyumba", ngaleyo ndlela ibonise umphumela okhuthaza ukukhula.