Potassium diformate(PDF) gishiri ne mai hadewa wanda aka yi amfani da shi azaman ƙarin abinci wanda ba maganin rigakafi ba don haɓaka haɓakar dabbobi. Duk da haka, an yi rubuce-rubuce kaɗan a cikin nau'ikan ruwa, kuma ingancinsa ya saba wa juna.

Wani bincike da aka yi a baya kan kifin salmon na Atlantic ya nuna cewa abincin da ke ɗauke da naman kifi da aka yi wa magani da 1.4v PDF ya inganta ingancin abinci da kuma saurin girma. Sakamakon da aka samu dangane da girman tilapia mai kama da hybrid ya kuma nuna cewa ƙarin kashi 0.2% na PDF a cikin abincin gwaji ya ƙara yawan girma da ingancin abinci, da kuma rage kamuwa da ƙwayoyin cuta.

Sabanin haka, wani bincike da aka yi kan matasan tilapia masu hade ya nuna cewa karin PDF a kashi 1.2 cikin 100 na abincin bai nuna ci gaba a aikin girma ba, duk da cewa yana rage yawan kwayoyin cuta a cikin hanji. Dangane da takaitaccen bayanin da ake da shi, ingancin PDF a aikin kifi ya bambanta dangane da nau'in, matakin rayuwa, matakan kari na PDF, tsarin gwaji da yanayin al'ada.

Tsarin gwaji

sun gudanar da gwajin girma a Cibiyar Oceanic da ke Hawaii, Amurka, don tantance tasirin PDF akan aikin girma da kuma narkewar jatan lande fari na Pacific da aka noma a cikin tsarin ruwa mai tsabta. Ma'aikatar Binciken Noma ta Amurka ce ta dauki nauyinsa, kuma ta hanyar yarjejeniyar haɗin gwiwa da Jami'ar Alaska Fairbanks.

Jatan lande fari na matasa na Pacific (Litopenaeus vannamei) an noma su a cikin tsarin ruwa mai tsafta wanda ke kwarara ta cikin gida tare da gishirin ppt 31 da zafin digiri 25-C. An ciyar da su abinci shida da aka gwada tare da furotin kashi 35 da lipid kashi 6 wanda ke ɗauke da PDF a kashi 0, 0.3, 0.6, 1.2 ko 1.5.

Ga kowane gram 100, an tsara abincin basal don ya ƙunshi gram 30.0 na waken soya, gram 15.0 na garin pollock, gram 6.0 na garin squid, gram 2.0 na man menhaden, gram 2.0 na waken soya lecithin, gram 33.8 na alkama gaba ɗaya, gram chromium oxide gram 1.0 da sauran sinadarai gram 11.2 (gami da ma'adanai da bitamin). Ga kowane abinci, an ajiye tankuna huɗu na lita 52 a cikin tanki 12 na jatan lande. Tare da nauyin jiki na farko na gram 0.84, ana ciyar da jatan lande da hannu sau huɗu a rana har sai sun yi laushi na tsawon makonni takwas.

Don gwajin narkewar abinci, an noma jatan lande guda 120 masu nauyin jiki na gram 9 zuwa 10 a cikin kowanne tanki mai lita 18, 550 tare da tankuna uku/maganin abinci. An yi amfani da Chromium oxide a matsayin alamar ciki don auna ma'aunin narkewar abinci a bayyane.

Sakamako

Karin nauyin jatan lande a kowane mako ya kama daga gram 0.6 zuwa 0.8 kuma ya kan karu a cikin jiyya da kashi 1.2 da 1.5 cikin ɗari na abinci mai gina jiki na PDF, amma bai bambanta sosai ba (P > 0.05) a tsakanin maganin abinci. Rayuwar jatan lande ta kai kashi 97 cikin ɗari ko sama da haka a gwajin girma.

Ratio na canza abinci (FCRs) iri ɗaya ne ga abincin da ke da kashi 0.3 da 0.6 na PDF, kuma duka sun yi ƙasa da FCR na kashi 1.2 na PDF (P < 0.05). Duk da haka, FCRs don sarrafawa, kashi 1.2 da 1.5 na PDF sun yi kama da juna (P > 0.05).

Jatan lande da aka ciyar da kashi 1.2 cikin ɗari na abincin yana da ƙarancin narkewar abinci (P < 0.05) ga busassun abubuwa, furotin da kuma kuzari fiye da jatan lande da aka ciyar da sauran abinci (Hoto na 2). Duk da haka, matakin PDF bai shafi yadda suke narkewar lipids na abinci ba (P > 0.05).

Ra'ayoyi

Wannan binciken ya nuna cewa ƙarin PDF har zuwa kashi 1.5 cikin ɗari a cikin abinci bai shafi girma da rayuwar jatan lande da aka noma a cikin tsarin ruwa mai tsabta ba. Wannan lura ya yi kama da wani binciken da aka yi a baya game da jatan lande na matasa masu haɗaka, amma ya bambanta da sakamakon da aka samu a binciken da aka yi da kifin salmon na Atlantic da kuma girma na tilapia masu haɗaka.

Tasirin abincin PDF akan FCR da narkewar abinci ya nuna dogaro da kashi a cikin wannan binciken. Yana yiwuwa babban FCR na abincin PDF kashi 1.2 ya faru ne saboda ƙarancin narkewar furotin, busasshen abu da kuma kuzarin abinci. Akwai ƙarancin bayanai game da tasirin PDF akan narkewar abinci mai gina jiki a cikin nau'ikan ruwa.

Sakamakon wannan binciken ya bambanta da na wani rahoto da ya gabata wanda ya ce ƙara PDF a cikin abincin kifi a lokacin ajiya kafin sarrafa abinci ya ƙara yawan narkewar furotin. Bambancin ingancin PDF na abinci da aka samu a cikin binciken da aka yi a yanzu da na baya na iya kasancewa saboda yanayi daban-daban, kamar gwajin nau'in, tsarin al'adu, tsarin abinci ko wasu yanayi na gwaji. Dalilin wannan rashin jituwa bai bayyana ba kuma yana buƙatar ƙarin bincike.