1. Q: Thaum ntxov los yog lig pub mis nyuj muaj teeb meem rau lawv txoj kev loj hlob thiab kev noj qab haus huv. Yog li cov lus nug yog, thaum twg yog lub sijhawm zoo tshaj plaws los pib pub mis?
A: Nws yog feem ntau haum rau cov nyuj pib pub zaub mov thaum muaj hnub nyoog 3 lub lis piam.
2. Q: Dab tsi yog qhov tsim txom ntawm pub mis nyuj ntxov dhau lawm?
A: Vim hais tias calves me me heev nyob rau hauv lub rumen, reticulum, thiab omasum thaum lawv yug los (xws li tsawg dua 3 lub lis piam), lawv tsis tuaj yeem. zom zaub mov. Tsis muaj kab mob los yog ciliates, thiab tsuas yog mis nyuj tuaj yeem nkag mus rau hauv lub plab tiag tiag rau kev nqus thiab siv (tam sim no tsuas yog lub plab tiag tiag hauv kev ua haujlwm). Yuav ua li cas kom tsis txhob muaj forestomach thiab xa cov mis nyuj mus rau lub plab tiag yog nyob ntawm qhov kaw ntawm txoj hlab pas. Yog hais tias pub nyom nyob rau lub sij hawm no yuav ua rau kom lub nra ntawm calf rumen, reticulum, thiab omasum, nws yuav ua rau mob.
3. Q: Dab tsi yog qhov teeb meem ntawm kev pub mis nyuj lig dhau lawm?
A: Yog tias pub mis nyuj lig dhau lawm, lub plab thiab cov hnyuv tsis tuaj yeem ua haujlwm, kev loj hlob thiab kev loj hlob ntawm rumen, reticulum, thiab omasum qeeb, thiab ntim me me, nws yuav cuam tshuam rau kev loj hlob thiab kev loj hlob thiab kev ua haujlwm ntawm lub plab thiab txoj hnyuv.
4. Q: Ntau npaum li cas cov khoom noj khoom haus thiab cov khoom noj ntsuab ua rau lub rumen?
A: Yog tsis muaj khoom noj khoom haus stimulation, calf rumen yuav tsis tsim. Ib txwm kab mob, protozoa, thiab fungi nyob rau hauv rumen yog ib txwm tsim los ntawm lub sij hawm calves noj cov khoom noj khoom haus. Txawm hais tias muaj ntau pua tus kab mob ua raws li pub granules nyob rau hauv rumen, tsuas yog ib lub kaum os cov kab mob yog cov pab pawg tseem ceeb. Tsuas yog cov kab mob uas tuaj yeem ferment carbohydrates hauv cov anaerobic ib puag ncig tuaj yeem loj hlob sai hauv rumen. Cov khoom kawg ntawm carbohydrate fermentation (tshwj xeeb tshaj yog acetic acid thiab butyric acid) yog ib qho tseem ceeb stimulants rau rumen txoj kev loj hlob.
Yog li ntawd, kev noj cov hmoov txhuv nplej siab yog qhov tseem ceeb rau kev loj hlob ntawm rumen ntau dua li cov khoom noj roughage. Pub siab palatability calf feed (mix cereal pub) yog ib qho tseem ceeb heev los txhawb txoj kev loj hlob sai ntawm rumen thiab kev ua tiav ntawm lub sij hawm weaning. Ntxiv 1% ntsev thiab 4% ntawm premix rau calf concentrate tuaj yeem txhim kho rumen txoj kev loj hlob, txhim kho rumen muaj nuj nqi thiab zom rau ib puag ncig, sib npaug anions, thiab cations, txhim kho pub siv tus nqi, txhawb kev tsim thiab kev loj hlob ntawm calf skeleton, txhim khu kev loj hlob muaj peev xwm, thiab txhawb kev loj hlob tom qab thiab qhov hnyav nce.
5. Q: Dab tsi yog qhov txiaj ntsig ntawm kev pib pub mis nyuj thaum muaj hnub nyoog 3 lub lis piam?
A: Tom qab 3 lub lis piam, cov rumen, reticulum, thiab omasum ntawm cov nyuj nce sai, thiab cov kab mob nkag mus rau hauv hav zoov (rumen, reticulum, thiab omasum) nrog rau lub qhov ncauj vim muaj me me ntawm cov khoom noj thiab dej. Lub sijhawm no, tus menyuam mos liab pib rov hais dua. Thiab peb tuaj yeem pib noj cov nyom tshiab, zaub zaub, zaub qhwv zoo, crushed concentrate pub thiab lwm yam. Nrog rau kev loj hlob ntawm lub hnub nyoog, nws yuav tsum maj mam nce tus nqi ntawm pub thiab roughage.
Qhov no tsis tsuas yog zam cov kab mob los ntawm kev sib tw forestomach, tab sis kuj tseem ua rau kev loj hlob ntawm forestomach, txhawb kev loj hlob thiab kev loj hlob ntawm cov kab mob thiab ciliates hauv rumen, thiab maj mam ntxiv dag zog rau kev zom zaub mov thiab pub, uas ua rau lub hauv paus zoo. rau nyuj noj ntau heev roughage tom qab, thiab rau cov pob txha pob txha loj hlob sai.