Potassium diformate(PDF) bụ nnu jikọtara ọnụ nke ejirila dị ka ihe mgbakwunye nri na-abụghị ọgwụ nje iji kwalite uto anụ ụlọ.Otú ọ dị, e dekọwo ihe ọmụmụ dị nnọọ nta n'ụdị mmiri mmiri, na irè ya na-emegiderịta onwe ya.

Nnyocha e mere gara aga na salmon Atlantic gosiri na nri nwere azụ azụ ejiri 1.4v PDF mee ka arụmọrụ nri dị mma na ọnụego uto.Nsonaazụ dabere na ntolite nke tilapia ngwakọ gosikwara na mgbakwunye 0.2% PDF na nri ule na-abawanye ụbara uto na nri nri, yana mbelata ọrịa nje.

N'ụzọ dị iche, nyocha nke tilapia ngwakọ ụmụaka gosiri na mgbakwunye PDF na ihe ruru pasenti 1.2 nke nri egosighi ọganihu na arụmọrụ uto, n'agbanyeghị na-egbochi nje bacteria na-egbu egbu.Dabere na ozi nwere ntakịrị, arụmọrụ PDF na arụmọrụ azụ dị ka ọ na-adịgasị iche dabere n'ụdị ụdị, ọkwa ndụ, ọkwa mgbakwunye PDF, nhazi ule na ọnọdụ omenala.

Nnwale imewe

mere nnwale uto na Institutelọ Ọrụ Oceanic dị na Hawaii, USA, iji nyochaa mmetụta PDF na arụmọrụ uto na mgbaze nke shrimp ọcha Pacific azụlitere na sistemu mmiri.Ndị Ngalaba Na-ahụ Maka Agriculture Agricultural Research Service kwadoro ya na site na nkwekọrịta nkwado ya na Mahadum Alaska Fairbanks.

Shrimp ọcha na-eto eto Pacific (Litopenaeus vannamei) Azụlitere ya n'ime ime ụlọ-site na usoro mmiri dị ọcha nke nwere salinity 31 ppt na okpomọkụ 25 Celsius.A na-enye ha nri ule isii nwere protein 35 pasent na 6 pasent lipid nwere PDF na 0, 0.3, 0.6, 1.2 ma ọ bụ 1.5 pasent.

Maka 100 g nke ọ bụla, a na-emepụta nri basal ka ọ nwee gram 30.0 soybean, gram 15.0 pollock, 6.0 grams squid food, 2.0 grams menhaden mmanụ, 2.0 grams soy lecithin, 33.8 grams ọka wheat, 1.0 gram chromium oxide na gram 11. ihe oriri (gụnyere mineral na vitamin).Maka nri ọ bụla, a na-echekwa tankị 52-L anọ na 12 shrimp / tank.Site na ịdị arọ ahụ mbụ 0.84-gram, a na-enye oporo ahụ nri ugboro anọ kwa ụbọchị ka ọ pụta ìhè satiation maka izu asatọ.

Maka ule digestibility, 120 shrimp nwere oke ahụ nke 9 ruo 10 gram ka azụlitere n'ime tankị 18, 550-L nwere tankị atọ / ọgwụgwọ nri.A na-eji Chromium oxide mee ihe dị ka ihe nrịbama dị n'ime maka ịlele ọnụọgụ mgbari nri pụtara ìhè.

Nsonaazụ

Uru ibu kwa izu nke shrimp sitere na 0.6 ruo 0.8 gram ma na-abawanye na ọgwụgwọ na 1.2 na 1.5 pasent nri PDF, mana ọ bụghị nke ukwuu (P> 0.05) dị iche n'etiti ọgwụgwọ nri.Ịlanahụ nke oporo bụ pasent 97 ma ọ bụ karịa na nnwale uto.

Ọnụego mgbanwe nri (FCRs) yiri maka nri nwere 0.3 na 0.6 pasent PDF, ma ha abụọ dị ala karịa FCR maka nri 1.2 pasent PDF (P <0.05) Agbanyeghị, FCRs maka njikwa, 1.2 na 1.5% PDF. nri ndị yiri ya (P> 0.05).

Shrimp na-eri nri 1.2 pasent nri nwere obere digestibility (P <0.05) maka okwu akọrọ, protein na ike dị ukwuu karịa oporo na-eri nri ndị ọzọ (Fig 2).Otú ọ dị, emetụtaghị mgbaze ha nke lipids nri (P> 0.05) site na ọkwa PDF.

Echiche

Ọmụmụ ihe a gosiri na mgbakwunye PDF na ihe ruru pasenti 1.5 na nri emetụtaghị uto na nlanarị nke shrimp azụlitere na usoro mmiri dị ọcha.Nlebanya a yiri nchoputa gara aga na tilapia ngwakọ na-eto eto, mana dị iche na nsonaazụ achọpụtara na nyocha nke salmon Atlantic na uto nke tilapia ngwakọ.

Mmetụta nke PDF nri na FCR na digestibility gosipụtara ndabere dose na ọmụmụ a.Ọ ga-ekwe omume na FCR dị elu nke 1.2% nri PDF bụ n'ihi obere mgbaze nke protein, ihe akọrọ na ike dị ukwuu maka nri.Enwere ozi dị oke oke gbasara mmetụta PDF na mgbari nri na ụdị mmiri.

Nsonaazụ nke ọmụmụ a dị iche na nke akụkọ gara aga nke kwuru na mgbakwunye PDF na azụ azụ n'oge oge nchekwa tupu nhazi nri na-abawanye protein digestibility.Ọrụ dị iche iche nke PDF nri nke achọtara na ọmụmụ ihe ugbu a na nke gara aga nwere ike ịbụ n'ihi ọnọdụ dị iche iche, dị ka ụdị nnwale, usoro omenala, usoro nri ma ọ bụ ọnọdụ nnwale ndị ọzọ.Ihe kpatara esemokwu a edoghị anya ma nyekwa ohere nyocha ọzọ.