Potasiyumu itandukanye(PDF) ni umunyu wahujwe wakoreshejwe nk'inyongeramusaruro itari antibiyotike kugirango iteze imbere ubworozi.Nyamara, ubushakashatsi buke cyane bwanditswe mubinyabuzima byo mu mazi, kandi imikorere yabyo iravuguruzanya.

Ubushakashatsi bwibanze kuri salmon Atlantique bwerekanye ko indyo irimo amafi y’amafi yavuwe hamwe na 1.4v PDF yazamuye neza ibiryo no kwiyongera.Ibisubizo bishingiye ku mikurire ya tilapiya ya Hybrid na byo byagaragaje ko kongeramo 0.2 ku ijana PDF mu mafunguro y’ibizamini byongereye cyane imikurire n’imikorere y’ibiryo, ndetse no kwandura indwara za bagiteri.

Ibinyuranye na byo, ubushakashatsi bwakozwe kuri tilapiya y’abana bato bwerekanye ko kuzuza PDF kugera kuri 1,2 ku ijana by’imirire bitagaragaje iterambere mu mikorere yo gukura, nubwo bikumira cyane bagiteri zo mu nda.Ukurikije amakuru make aboneka, imikorere ya PDF mumikorere y amafi isa nkaho itandukana bitewe nubwoko, urwego rwubuzima, urwego rwuzuzanya rwa PDF, ibizamini hamwe numuco.

Igishushanyo mbonera

yakoze ikigeragezo cyo gukura mu kigo cya Oceanic Institute muri Hawaii, muri Amerika, kugirango asuzume ingaruka za PDF ku mikorere yo gukura no kugogorwa kwa shitingi yera ya pasifika yera muri sisitemu y'amazi meza.Yatewe inkunga n’ishami ry’ubuhinzi muri Amerika rishinzwe ubushakashatsi mu buhinzi no mu masezerano y’ubufatanye na kaminuza ya Alaska Fairbanks.

Umwana muto wa pasifika yera ya shrimp (Litopenaeus vannamei) barezwe mu nzu itembera mu mazi meza asukuye hamwe na 31 ppt hamwe nubushyuhe bwa dogere 25.Bagaburiwe indyo esheshatu zipimishije hamwe na poroteyine 35 ku ijana na lipide 6 ku ijana irimo PDF kuri 0, 0.3, 0,6, 1.2 cyangwa 1.5 ku ijana.

Kuri buri g 100, indyo y’ibanze yateguwe irimo garama 30.0 ifunguro rya soya, ifunguro rya garama 15.0, ifunguro rya garama 6.0, amavuta ya menhaden garama 2.0, garama 2.0 za soya lecithine, garama 33.8 ingano zose, garama 1.0 ya chromium oxyde na garama 11.2 ibiyigize (harimo imyunyu ngugu na vitamine).Kuri buri ndyo, tanki enye 52-L zabitswe kuri shrimp / tank.Hamwe na garama 0.84 z'uburemere bw'umubiri, urusenda rwagaburwaga intoki inshuro enye buri munsi kugirango rugaragaze ibyumweru umunani.

Kugirango igeragezwa ryogusya, urusenda 120 rufite uburemere bwumubiri wa garama 9 kugeza 10 zarezwe muri buri tanki 18, 550-L hamwe na tanki eshatu / kuvura imirire.Chromium oxyde yakoreshejwe nkikimenyetso cyimbere mugupima coefficient igaragara.

Ibisubizo

Kwiyongera ibiro bya buri cyumweru bya shrimp byari hagati ya garama 0,6 na 0.8 kandi byakunze kwiyongera mubuvuzi hamwe na 1,2 na 1.5 ku ijana bya PDF, ariko ntabwo byari bitandukanye (P> 0.05) bitandukanye no kuvura imirire.Kubaho kwa shrimp byari 97 ku ijana cyangwa birenga mugihe cyo gukura.

Ikigereranyo cyo kugaburira ibiryo (FCRs) byari bisa nkibiryo bifite 0,3 na 0,6 ku ijana PDF, kandi byombi byari munsi ya FCR kubiryo bya PDF 1,2% (P <0.05) Nyamara, FCRs yo kugenzura, 1.2 na 1.5% PDF ibiryo byari bisa (P> 0.05).

Shrimp yagaburiye indyo ya 1,2 ku ijana yari ifite igogorwa rito (P <0.05) kubintu byumye, proteyine n'imbaraga nyinshi kuruta urusenda rwagaburiye andi mafunguro (Ishusho 2).Ibiryo byabo bya lipide yimirire, ariko, ntabwo byagize ingaruka (P> 0.05) nurwego rwa PDF.

Ibitekerezo

Ubu bushakashatsi bwerekanye ko kuzuza PDF kugera kuri 1.5 ku ijana mu mirire bitagize ingaruka ku mikurire n’imibereho ya shrimp yatewe mu buryo bw’amazi meza.Iri genzura ryasaga nubushakashatsi bwabanje hamwe na tilapiya y’abana bato, ariko bitandukanye n’ibisubizo byagaragaye mu bushakashatsi bwakozwe na salmon Atlantique no gukura kwa tilapiya ya Hybrid.

Ingaruka zimirire ya PDF kuri FCR no kugogora byagaragaje urugero rwinshi muri ubu bushakashatsi.Birashoboka ko FCR yo hejuru ya 1,2 ku ijana indyo ya PDF yatewe no kugabanuka kwinshi kwa poroteyine, ibintu byumye n'imbaraga nyinshi kubyo kurya.Hariho amakuru make cyane yerekeye ingaruka za PDF kumyunyungugu yintungamubiri mumoko yo mumazi.

Ibyavuye muri ubu bushakashatsi byari bitandukanye n’ibya raporo yabanjirije iyi ivuga ko kongeramo PDF mu ifi y’amafi mu gihe cyo kubika mbere yo gutunganya ibiryo byongera igogorwa rya poroteyine.Ingaruka zitandukanye za PDF zimirire ziboneka mubushakashatsi bwubu nubushize zishobora kuba zaratewe nuburyo butandukanye, nko gupima amoko, sisitemu yumuco, gutegura imirire cyangwa ubundi buryo bwubushakashatsi.Impamvu nyayo y’iri tandukaniro ntabwo yari isobanutse kandi isaba ko hakorwa iperereza.