1. Kev npaj ua ntej kev yuav khoom
Ua ntej yuav, yuav tsum tshawb nrhiav txog qhov tseem ceeb, xws li tshawb nrhiav qhov keeb kwm ntawm cov nyuj uas nyob hauv thaj av siab lossis tsis yog, lossis thaj chaw faib cov nyuj pub rau tsiaj, cov qauv ntawm cov tsiaj xws li Angus nyuj , Dexter nyuj, Hereford nyuj, thiab lwm yam. Thiab qhov ntau npaum li cas, hnub nyoog thiab poj niam txiv neej, thiab tshawb nrhiav qhov sib piv ntawm cov nyuj, nyuj, menyuam nyuj thiab cov nyuj pub rau tsiaj hauv cov pab nyuj. Tsuas yog los ntawm kev nkag siab thiab siv tag nrho cov cai lag luam ntawm cov nyuj pub rau tsiaj, peb thiaj li txo tau lub sijhawm pub mis, tswj tus nqi ntawm kev yug nyuj, ua kom zoo dua ntawm kev pub mis, tau txais cov nyuj nyuj kim heev thiab txo cov nyuj mob thiab xiam oob qhab.
2. Tsis txhob poob phaus thaum thauj tsheb
Qhov hnyav ntawm cov nyuj pub zaub mov yuav hloov me ntsis ua ntej thiab tom qab kev thauj mus los. Cov yam tseem ceeb uas ua rau qhov hnyav hloov muaj xws li cov hauv qab no. Thawj qhov yog qhov deb ntawm kev thauj mus los, qhov thib ob yog cov khoom siv hauv tsheb, qhov thib peb yog qhov zoo ntawm txoj kev, qhov thib plaub yog cov thev naus laus zis tsav tsheb, qhov thib tsib yog cov zaub mov thiab dej haus rau cov nyuj nyuj ua ntej nce tsheb, thiab qhov thib rau yog qhov muaj peev xwm thauj khoom. Thaum cov nyuj nyuj noj zaub mov ntau dua thiab haus dej ntau dua ua ntej nce tsheb, lawv yuav poob ib feem ntawm lawv qhov hnyav tom qab tawm ntawm lub tsheb thauj khoom. Yog li ntawd, qhov no yuav tsum tau coj los xav txog thaum xam tus nqi pub nyuj.
3. Cov protein nyob rau hauv cov khoom noj
Thaum lub sijhawm rog , yuav tsum tau noj cov protein kom txaus, thiab yuav tsum tau tswj cov protein ntawm cov nyuj nyob rau ntau lub sijhawm sib txawv. Ntau dhau lossis tsawg dhau yuav ua rau muaj kev phiv. Thaum pub cov protein ntau dhau, cov nyuj xws li Hereford yuav tsis nqus tau tag nrho cov protein, ua rau pov tseg thiab nce nqi pub, tab sis kuj yuav ua rau lub nra hnyav ntawm txoj hnyuv plab thiab ua rau muaj kab mob. Thaum cov protein pub tsawg dhau, nws yuav tsis tau raws li cov protein uas xav tau rau kev loj hlob thiab kev txhim kho ntawm cov nyuj, uas yuav muaj qee qhov cuam tshuam rau qhov ua rau rog.
Cov menyuam nyuj loj hlob sai ua ntej muaj 3 lub hlis, yog li lawv xav tau cov protein ntau dua, uas yog li ntawm 1/5 ntawm cov khoom noj. Vim tias kev loj hlob ntawm rumen tsis zoo tag nrho lub sijhawm no, qee cov amino acids tseem ceeb tsis tuaj yeem tsim tau hauv lub cev, yog li nws tuaj yeem ua ke nrog kev pub qee yam khoom noj protein sib txawv. Thaum cov menyuam nyuj loj hlob mus txog 6 ~ 12 lub hlis thiab hnyav 150 ~ 200 kg, cov protein hauv cov khoom noj tuaj yeem txo qis mus rau 15%. Tom qab ntawd, cov protein ntsiab lus maj mam txo qis mus rau 12% nrog rau qhov hnyav ntawm cov menyuam nyuj nce ntxiv.
Thaum cov nyuj noj zaub mov raug rog hauv lub tsev nyuj thiab hnyav li 300 kg, qhov feem pua ntawm cov protein pub hauv cov zaub mov yuav tsum tau tswj ntawm 10% thiab 13%. Thaum lub cev hnyav nce, cov protein pub tuaj yeem txo qis maj mam. Thaum kawg ntawm kev rog, cov protein pub yuav tsum suav nrog 10% ntawm cov zaub mov noj. Thaum cov nyuj laus rog, cov protein pub yuav tsum yog 10% hauv cov zaub mov noj, thaum lub sijhawm ntawd ntau cov khoom noj muaj zog xws li pob kws, sorghum, thiab qos yaj ywm qab zib qhuav tuaj yeem pub. Yuav kom tsim tau cov nqaij nyuj zoo, cov protein pub hauv cov zaub mov noj yuav tsum tau nce me ntsis ntawm 2% txog 3% yog tias cov nyuj nyuj zoo raug rog ntau.
4. Kev pub nyuj thaum lub sijhawm rog rog
Kev sib sau ua ke thiab kev sib tov khoom noj. Thaum lub sijhawm pub mis, cov khoom noj uas muaj concentrate, dregs, silage, thiab hay feed yuav tsum tau pub sib cais, lossis pub tom qab sib tov sib npaug. Thaum lub sijhawm pub mis sib xyaw , yuav tsum siv cov feem sib piv kom tsim nyog rau kev pub mis rau tsiaj txhu. Txhawm rau kom ntseeg tau tias kev sib tov khoom noj sib npaug, yuav tsum siv kev sib tov tshuab tsawg kawg 3 feeb. Thaum do nrog tes, yuav tsum ua tsawg kawg peb zaug do kom tsis muaj cov khaubncaws sab nraud povtseg hauv cov khoom noj.
Cov khoom sib xyaw qhuav thiab ntub. Thaum lub sijhawm pub mis, tsis yog tsuas yog cov khoom sib xyaw qhuav xwb tab sis kuj siv tau cov khoom sib xyaw ntub. Zoo dua siv cov pob kws silage lossis cov khoom noj dregs rau kev pub mis. Ua ntej pib pub mis, txhua yam khoom noj yuav tsum tau hnyav sib npaug thiab do tib lub sijhawm. Nws yog ib qho zoo kom tswj cov dej hauv cov khoom noj ntawm 40% txog 50%. Thaum pub mis, tsis txhob noj cov hmoov qhuav. Qhov ntau ntawm txhua qhov kev sib tov yuav tsum tau ua kom tau raws li nws cov khoom noj uas nws noj ntawm 4 ~ 6 teev. Tom qab noj, kev sib tov tuaj yeem txuas ntxiv mus thiab cov khoom noj sib tov yuav tsum tau nthuav tawm rau hauv qhov chaw ntxoov ntxoo.
Kev hloov cov khoom noj. Thaum cov nyuj hnyav zuj zus, qhov sib piv ntawm cov khoom noj yuav tsum tau hloov kho kom zoo. Yog li ntawd, thaum lub sijhawm pub mis rau cov nyuj rog, cov khoom noj yuav tsum tau hloov pauv ib kauj ruam zuj zus, thiab tsis txhob muaj kev hloov pauv loj sai sai, kom tsis txhob cuam tshuam rau kev noj zaub mov ntawm cov nyuj. Tom qab lub sijhawm hloov pauv ntawm 3 ~ 5 hnub, cov nyuj tuaj yeem hloov kho maj mam.
Dej haus. Yuav tsum siv txoj kev haus dej dawb thaum pub mis nyuj. Kev teeb tsa lub cuab yeej uas cia nyuj haus dej raws li qhov xav tau yuav tsum tau ua hauv lub tsev nyuj, zoo dua rau ib sab lossis saum toj ntawm qhov quav thiab qhov zis ntawm lub tsev nyuj, kom cov dej ntws tawm sai sai nkag mus rau hauv qhov quav thiab qhov zis thiab zam kom tsis txhob ntub lub tsev nyuj.
5. Kev tswj cov nyuj nyuj thaum lub sijhawm rog rog
Kev ua kom nyuj rog zoo tshaj plaws thaum lub caij nplooj zeeg , tab sis kuj tseem ua thaum lub caij ntuj no thiab lub caij nplooj ntoo hlav. Thaum qhov kub siab tshaj 30 ℃ thaum lub caij ntuj sov, cov nyuj lub cev zom zaub mov yuav nce ntxiv, thiab qhov hloov pauv zaub mov tsawg, yog li yuav tsum ua kom tsis txhob kub thiab txias ua ntej. Kev ua kom nyuj rog ua ntej hnub nyoog 2 xyoos yuav ua rau cov nyuj loj hlob sai dua thiab muaj cov nqaij ntshiv ntau dua, qhov hloov pauv zaub mov kuj siab. Ua ntej ua kom nyuj rog, tus neeg yug nyuj yuav tsum ua haujlwm tua kab kom zoo, thiab lub tsev nyuj yuav tsum tau ntxuav thiab tua kab mob kom huv si.
Cov tuam txhab nyuj yuav tsum tswj lawv lub sijhawm ua haujlwm kom ntau li ntau tau, kom tsis txhob noj ntau yam khoom noj, thiab txo qhov ua rau rog. Zoo dua khi cov nyuj rau ib ceg lossis kaw rau hauv lub qhov rooj tom qab txhua zaus pub mis thiab tswj lawv qhov kev txav mus los. Qhov ntev ntawm cov hlua khi yuav tsum ntev npaum li cov nyuj pw tau. Kev txhuam lub cev nyuj tuaj yeem pab txhawb kev ncig ntshav thiab ua rau cov zaub mov noj ntau dua. Yog li ntawd, kev txhuam lub cev nyuj yuav tsum ua tsawg kawg ib lossis ob zaug hauv ib hnub.