1. Cov Ntsiab Lus Tseem Ceeb ntawm Weaning Beef Calves
Feem ntau, cov mis niam tau txais txiaj ntsig rau 3 txog 6 lub hlis nyuj thiab tom qab ntawd txiav tawm thiab rog. Txhawm rau nce nyuj kom muaj txiaj ntsig, cov nyuj nyuj siab tuaj yeem pib noj me me ntawm cov dej thiab nyom tom qab 3 ～ 4 lub lis piam, thiab lawv cov hav zoov loj tuaj sai. Thaum cov menyuam mos muaj hnub nyoog 2 hlis, lawv tau maj mam yoog mus rau qhov chaw pub zaub. Lub sijhawm no, lawv tuaj yeem txiav menyuam tawm, kom luv lub sijhawm pub mis nyuj ntawm cov nyuj thiab npaj rau kev yug menyuam tom ntej, uas txo tus nqi pub tsiaj nyuj thiab ua rau nce ntxiv txiaj ntsig ntawm kev yug menyuam nyuj. Kev pub mis thaum ntxov kuj tseem tuaj yeem ua kom nrawm ntawm kev txhim kho rumen thiab txhim kho kev muaj sia nyob ntawm cov nyuj.
Thaum nyuj nyoos dua, cov neeg ua liaj ua teb nyuj tuaj yeem pib pub lawv nrog cov nyom tshiab, quav nyab zoo, lossis cov nyom muag. Tus nqi pub mis nce nrog kev loj hlob ntawm lub hli. Tom qab ntawd sib tov nrog roughage thiab mloog zoo tuaj yeem ua rau kev rov tsim dua tshiab ntawm ciliates hauv cov rumen, ua kom lub plab zom mov thiab nqus tau lub zog ntawm lub plab, txhim kho lub hauv paus zoo rau kev loj hlob tom qab thiab loj.
2. Cov Ntsiab Lus rau Nqaij Nyuj Nyuj
Xaiv cov mov ci zoo. Hybrid ntau yam muaj cov yam ntxwv zoo ntawm kev loj hlob sai, muaj zog hloov pauv tau, thiab cov nqaij zoo. Nyob rau tib lub sijhawm, kev noj zaub mov luv luv kuj tseem tuaj yeem ua rau cov rog nruab nrab thiab noj qab haus huv hauv zos, uas yuav muaj txiaj ntsig zoo.
Zeb. Thaum ntxov ntawm kev rog, kev siv nyom tuaj yeem siv rau 1 ～ 2 lub hlis, thaum nyob rau theem tom ntej, qhuav ntau pub mis yuav tsum tau tso kev ntxhov siab. Grazing yuav tsum tau them sai sai rau lub caij, nyiam dua nyob hauv caij nplooj ntoos hlav nrog cov nyom tshiab, lossis nyob rau lub caij nplooj zeeg txias. Mob khaub thuas thiab kub heev tsis haum rau noj.
Pub khoom noj. Thaum lub sijhawm ua kom rog, cov nyom ammoniated tau siv los ua cov zaub mov tseem ceeb, uas tuaj yeem txhim kho lub palatability rau qee yam, txhim kho cov as -ham hloov pauv thiab nqaij nyuj noj kom zoo thiab nyiam nyuj, thiab txo tus nqi tsim khoom. Ntxiv rau kev pub mis ammoniated rau Charolais nyuj, qhov sib tov yuav tsum tau ntxiv raws li qhov xwm txheej tiag tiag ntawm nyuj. Pobkws yog lub hauv paus tseem ceeb ntawm kev sib tov. Nws tuaj yeem pub nrog ncuav mog qab zib colza lossis ncuav mog qab zib cottonseed thiab qee cov hmoov txhuv nplej siab thiab ntsev ob zaug ib hnub ntawm 1% ntawm nyuj lub cev qhov hnyav.
Tshuaj Ntxiv. Rumen tsis tuaj yeem ntxiv rau pub txhawm rau txhim kho kev zom thiab nqus cov as -ham hauv nyuj. Nws kuj tseem tuaj yeem nce cov nqaij nyug tawm thiab pub hloov pauv los ntawm cov thev naus laus zis ntawm cov khoom hnyav hnyav.
3. Cov Ntsiab Lus Tseem Ceeb rau Kev Xaiv Cov Nqaij Nyuj Nyuj Nyuj
Kev nyiam huv. Lub tuam txhab nyuj yuav tsum ua kom ntseeg tau tias kev pub mis rau tsiaj noj yog qhov tsis tu ncua, xws li cov quav nplej tuaj yeem ua tau siv khaws cia, thiab qhov zoo thiab khoom noj khoom haus yuav tsis hloov pauv. Tsis pub muaj pwm los yog kab mob sib kis yuav tsum tau pub.
Khoom noj khoom haus. Forage rau nyuj nyuj yog mloog zoo thiab roughage, thiab cov khoom noj sib txawv tau sib phim raws li lub hlis sib txawv ntawm hnub nyoog. Cov as -ham uas muaj nyob rau hauv kev mloog zoo thiab roughage yuav tsum ua kom tau raws li kev noj zaub mov xav tau ntawm nyuj nyuj kev loj hlob, txhawm rau ua kom cov rog rog. Cov khoom noj ntxiv yuav tsum muaj cov calcium, phosphorus, protein, kab kawm thiab lwm yam. Yog tias cov khoom tsis txaus, nws yuav tsum tau muab cais cais.
Palatability. Kev pub zaub mov tshiab yuav tsum tau xaiv raws li lub palatability ntawm nyuj. Tsuas yog cov khoom noj muaj txiaj ntsig tuaj yeem ua rau muaj kev noj qab haus huv ntawm cov nyuj thiab txhawb nqa kev nqus ntawm cov nyuj nyuj. Txhawm rau xaiv cov mos mos thiab zom tau yooj yim, thiab zam kev pub zaub mov nyuaj uas yooj yim ua rau muaj kev phom sij rau nyuj.