Preservation ntawm duck qe

Hauv kev tswj hwm hatching ib txwm, qe tsis tuaj yeem hatched tam sim ntawd tom qab lawv tso, txawm tias lawv lub sijhawm cia luv. Yog li ntawd, lub qe yog khaws cia rau ib lub sij hawm ntawm lub sij hawm ua ntej muab tso rau hauv lub incubator. Txawm hais tias cov qe los ntawm kev yug me nyuam zoo heev, thiab tom qab kev xaiv nruj, yog tias lub qe zoo tsis zoo, yog tias qhov chaw cia khoom tsis zoo, cov txheej txheem cia tsis raug yuav muaj kev cuam tshuam tsis zoo rau lub qe. Tshwj xeeb tshaj yog nyob rau lub caij ntuj no thiab lub caij ntuj sov nws tseem ceeb dua. Yog li ntawd, tsim nyog preservation mob thiab txoj kev yuav tsum tau tsim rau lub qe.

(1) Kev xav tau rau chav tsev qe. Cov chaw yug me nyuam loj yuav tsum muaj chav tsev qe cia. Chav tsev khaws cia yuav tsum muaj chav kaw nrog kev ua haujlwm zoo thermal rwb thaiv tsev thiab tsis muaj qhov rais. Tsis tas li ntawd, chav tsev cia khoom yuav tsum tau nruab nrog cov khoom siv hluav taws xob tswj cov cua sov thiab cov khoom siv tub yees, thiab nruab nrog lub tshuab nqus dej tsis siv neeg. Qhov kev ncua deb ntawm chav tsev qe thiab lub tsev duck yuav tsum kom deb li deb tau, thiab nws yuav tsum yooj yim los ntxuav thiab tua kab mob.

(2) Qhov kub thiab av noo qhov zoo tagnrho rau kev khaws qe qe yog 13-16 degrees, tab sis lub sij hawm cia kuj txawv. Nws yog qhov tsim nyog los khaws cia hauv 7 hnub, thiab nws tsim nyog los tswj nws ntawm 15 degrees, thiab rau ntau tshaj 7 hnub, 11 degrees yog qhov tsim nyog. Qhov kub thiab txias muaj qhov cuam tshuam zoo rau lub qe ntawm hatching qe. Thaum qhov kub cia siab tshaj 23 degrees, lub embryo pib maj mam. Txawm hais tias qib ntawm txoj kev loj hlob yog txwv, cov metabolism hauv cov hlwb yuav maj mam ua rau kev laus thiab kev tuag ntawm lub embryo; ntawm qhov tsis sib xws, yog tias qhov kub thiab txias qis dhau, nws tseem yuav ua rau qhov kev tuag ntawm embryo cuam tshuam rau tus nqi hatching. Thaum qhov kub qis dua 0 degrees, cov qe poob lawv lub peev xwm hatching vim khov. Nws yuav tsum tau muab sau tseg tias, nyob rau hauv txhua rooj plaub, lub qe yuav tsum tau khaws cia nyob rau hauv ib tug kuj ruaj khov ib puag ncig. Yog li ntawd, ua ntej cia, yog tias qhov ntsuas kub ntawm cov qe qis dua qhov ntsuas kub, qhov ntsuas kub yuav tsum tau maj mam txo kom lub qe kub nyob ze rau ntawm chav tsev kub. Tom qab ntawd muab tso rau hauv qhov chaw cia khoom. Yog tias qhov kub thiab txias dhau lawm, lub npoo ntawm cov qe yuav rov qab los ntawm cov av, thiab cov qe yuav yooj yim ua pwm thiab deteriorate. Yog tias cov av noo tsawg dhau lawm, cov dej ntau hauv cov qe yuav evaporate, uas yuav ua rau muaj kev cuam tshuam rau kev loj hlob. qhov feem pua ​​​​yog qhov tsim nyog.

(3) Tsim nyog lub qe. Qe uas khaws cia rau ib lub lim tiam, thiab txoj hauj lwm ntawm lub qe nyob rau hauv cia tej zaum yuav tsuas muaj kev cuam tshuam me me rau hatchability. Txhawm rau kom cov huab cua nyob hauv qhov chaw, cov qe yuav tsum tau blunt-kawg. Yog tias cov qe raug muab hloov txhua hnub, cov qe uas tau khaws cia rau ntau tshaj li ib lub lis piam nrog cov blunt kawg tuaj yeem tau txais txiaj ntsig zoo dua hatching. Lub blunt kawg tiv thaiv lub embryo los ntawm adhering rau lub putamen membrane, uas yuav txwv tsis pub ua rau ntxov embryonic tuag. Thaum lub sij hawm cia ntev dua, lub kaum sab xis ntawm tig lub qe yuav tsum siab tshaj 90 degrees.

(4) Lub sij hawm cia tsim nyog Lub sij hawm cia luv luv, qhov zoo dua qhov hatching tus nqi. Nrog rau ncua sij hawm cia, lub hatchability yuav maj mam txo. Qhov poob ntawm hatching tus nqi kuj muaj kev sib raug zoo nrog lub caij. Txawm hais tias muaj kev cia zoo, nws yog qhov nyuaj kom tau txais cov txiaj ntsig zoo tshaj plaws yog tias lub sijhawm khaws cia ntev dhau. Vim tias cov protein ntawm cov qe tshiab muaj cov kab mob bactericidal, tom qab lub sijhawm ntev cia, cov nyhuv bactericidal ntawm cov protein poob qis; Ntawm qhov tod tes, yog tias lub sijhawm khaws cia ntev dhau lawm, cov dej noo hauv lub qe yog evaporated ntau dhau, ua rau muaj kev hloov pauv ntawm pH tus nqi sab hauv thiab ntxiv dag zog rau cov dej num ntawm ntau yam enzymes. Nws ua rau kev laus ntawm lub embryo, kev hloov pauv ntawm cov as-ham thiab kev loj hlob ntawm cov kab mob uas seem, yog li ua rau lub embryo ua rau muaj kev phom sij thiab txo qhov hatching tus nqi. Yog tias cov qe yuav tsum tau khaws cia rau lub sijhawm ntev, cov qe tuaj yeem ntim rau hauv lub hnab yas kaw, ntim nrog N2, thiab muab tso rau hauv lub thawv qe tom qab kaw, uas tuaj yeem tiv thaiv cov metabolism ntawm cov tshuaj thiab cov kab mob hauv cov qe thiab tiv thaiv. cov dej evaporation ntau dhau ntawm cov qe. Yog tias lub txee lub neej ntev dua 3-4 lub lis piam. Tseem tau txais tus nqi 70-80 feem pua. Thaum cov qe khaws cia rau lub sijhawm ntev, tig lub qe ib zaug ib hnub tuaj yeem ncua qhov kev poob qis hauv kev hatchability.