Pub zaub mov yog qhov tseem ceeb rau npua kom noj qab nyob zoo. Nws yog qhov tsim nyog los ntxiv cov khoom noj khoom haus rau npua thiab xyuas kom meej tias cov khoom zoo, thiab tseem yog ib qho thev naus laus zis uas tau nthuav dav thoob ntiaj teb. Feem ntau, qhov feem pua ​​ntawm cov khoom noj khoom haus ntxiv rau hauv pub yuav tsis pub tshaj 4%, uas yog siab dua, thiab tus nqi tsa yuav nce ntxiv, uas tsis tsim nyog rau tus nqi rau cov neeg ua liaj ua teb.

Lo lus nug 1: vim li cas npua thiaj xav tau zaub mov thiab cov khoom noj ntxiv tam sim no?

Rog npua, qhov tseem ceeb yog noj kom puv, noj kom zoo.

Qiao Shiyan, ib tug xibfwb ntawm Tuam Tshoj Agricultural University, tau hais tias pub zaub mov yog qhov tseem ceeb rau npua noj zoo. Pub thiabcov khoom noj khoom haus ntxivyog cov khoom siv thiab kev lav phib xaub ntawm kev lag luam npua niaj hnub no, cov kev ntsuas tsim nyog los ntxiv cov khoom noj khoom haus ntawm npua thiab xyuas kom meej tias cov khoom zoo, thiab tseem yog cov thev naus laus zis uas tau txhawb nqa dav hauv ntiaj teb. Cov thev naus laus zis yug tsiaj, kev siv zaub mov, lub voj voog yug tsiaj, qhov hnyav ntawm npua, qhov zoo ntawm nqaij thiab kev nyab xeeb ntawm cov khoom ntawm Tuam Tshoj yog qhov zoo ib yam li cov ntawm Tebchaws Meskas, Lub Tebchaws Yelemees, Denmark thiab lwm lub tebchaws npua loj, Ua raws li cov qauv thoob ntiaj teb thiab cov qauv kev lag luam ntshuam thiab xa tawm.

Cov khoom noj khoom haus ntxiv, uas suav nrogcov khoom noj khoom haus ntxiv, cov khoom siv ntxiv dav dav thiabcov tshuaj ntxiv, muaj me ntsis cuam tshuam rau pub. Kev pub ib zaug xwb tsuas yog daws tau qhov teeb meem ntawm "kev noj qab haus huv" ntawm npua, thiab cov khoom noj khoom haus ntxiv yog cov amino acids thiab vitamins qib pub, uas yog los daws qhov teeb meem ntawm "kev noj zaub mov zoo" ntawm npua. Ntxiv cov tshuaj ntxiv rau hauv pub tuaj yeem tiv thaiv thiab tswj tau cov kab mob thiab ntau yam kab mob ntawm npua. Los ntawm kev siv lub sijhawm rho tshuaj tawm hauv theem pub mis, cov tshuaj seem hauv nqaij npuas tuaj yeem tswj tau hauv qhov tsis muaj teeb meem. Ntxiv cov tshuaj antioxidants thiab lwm yam khoom ntxiv rau hauv pub, feem ntau yog cov khoom ntxiv hauv kev lag luam zaub mov, koom nrog qib zaub mov, thiab tsis muaj kev puas tsuaj rau kev loj hlob ntawm npua lossis qhov zoo ntawm nqaij npuas.

Lub xeev txwv tsis pub ntxiv phenobarbital thiab lwm yam tshuaj sedative hypnotic thiab anticonvulsant rau hauv cov zaub mov. Nws tsis tsim nyog ntxiv cov tshuaj pw tsaug zog kom ua rau npua pw tsaug zog ntau dua, txav tsawg dua thiab loj hlob rog sai, vim tias cov haujlwm ntawm cov npua raug kaw yog me me heev, yog li ntawd sedatives tsis tas yuav tsum tau. Urea, Arsenic Preparation thiab tooj liab raug tso cai ntxiv rau hauv cov zaub mov, tab sis lawv txhua tus muaj cov kev txwv sib xws thiab yuav tsum tsis txhob siv thaum twg xav tau. Urea yog ib hom chiv nitrogen siab. Yog tias siv me ntsis urea rau hauv cov tsiaj ruminants xws li nyuj thiab yaj, nws tuaj yeem decomposed los ntawm urease secreted los ntawm rumen microorganisms ntawm ruminants, thiab tom qab ntawd nws tuaj yeem nqus tau thiab zom los ntawm synthesizing protein. Npua tsis muaj rumen kiag li, yog li nws nyuaj rau siv nitrogen hauv urea. Yog tias cov koob tshuaj ntau dhau, nws yuav ua rau lom thiab tuag ntawm npua. Raws li qhov cuam tshuam ntawm kev ntxiv tooj liab, tsuas yog ntxiv cov tooj liab kom tsim nyog rau hauv cov zaub mov tuaj yeem txhawb kev loj hlob ntawm npua. Tus qauv tshwj xeeb ntawm kev ntxiv cov tooj liab kom tsim nyog yog tias qhov ntau ntawm cov khoom siv tooj liab hauv 1000 kg pub yuav tsum tsis pub tshaj 200 g.

Lo lus nug thib 2: Yuav ua li cas npua thiaj loj hlob mus txog 200-300 Jin tom qab 6 lub hlis?

Qhov zoo thiab ntau ntawm npua, kev yug tsiaj los ntawm kev tshawb fawb yog qhov tseem ceeb.

Wang Lixian, tus kws tshawb fawb ntawm Beijing Institute of Animal Husbandry thiab Veterinary Medicine ntawm Suav Academy of Agricultural Sciences, tau hais tias kev yug npua hauv kev tshawb fawb tuaj yeem lav qhov zoo thiab ntau. Tam sim no, lub voj voog yug npua ib txwm yog 150-180 hnub. Cov laj thawj tseem ceeb rau kev loj hlob sai thiab lub voj voog rog luv luv ntawm npua yog "peb zoo": npua zoo, pub zaub mov zoo thiab lub voj voog zoo, uas yog, hom npua zoo,pub zaub mov kom muaj kev nyab xeebthiab kev txhim kho ib puag ncig kev yug me nyuam. Kev tsim cov npua lag luam feem ntau yog kev sib xyaw ua ke ntawm Duroc, Landrace thiab cov npua dawb loj. Nws yog ib txwm rau cov npua zoo no kom muag tau li ntawm 160 hnub. Lub sijhawm muag cov npua txawv teb chaws zoo dua luv dua. Lub sijhawm rog ntawm cov npua sib xyaw nrog cov tsiaj hauv zos ntev heev, thiab lub sijhawm yug me nyuam nruab nrab yog 180-200 hnub.

Ua ntej tua npua, cov khoom noj pub rau npua sib txawv, thiab tag nrho cov khoom noj pub rau npua yog li 300 kg. Lub voj voog loj hlob ntawm npua yuav nce ntxiv tsawg kawg ib hlis yog tias lawv tsis tau pub zaub mov thiab tsuas yog pub zaub mov npua ib txwm muaj xws li cov nplej zom thiab cov nyom npua. Kev tsim kho thiab kev siv cov khoom noj niaj hnub thiab cov khoom noj ntxiv rau tsiaj txhu ua rau tus nqi hloov pauv zaub mov zoo dua, txo tus nqi ntawm kev tsim npua, thiab tsim lub hauv paus kev tshawb fawb rau kev lag luam npua kom tau txais txiaj ntsig zoo rau kev sib raug zoo thiab kev lag luam. Kwv yees tias nrog kev siv cov kev tshawb fawb niaj hnub thiab thev naus laus zis pub rau npua, tus nqi hloov pauv ntawm cov mis nyuj pub rau npua hauv Suav teb tau nce ntxiv ntau heev, thiab tus nqi pab txhawb ntawm kev tshawb fawb thiab thev naus laus zis rau kev yug tsiaj tau tshaj 40%. Tus nqi hloov pauv ntawm cov mis nyuj pub rau npua tau nce ntxiv los ntawm 4 ∶ 1 mus rau 3 ∶ 1. Yav dhau los, nws siv sijhawm ib xyoos los yug npua, tab sis tam sim no nws tuaj yeem muag tau hauv rau lub hlis, uas yog qhov sib cais los ntawm kev noj zaub mov sib npaug thiab kev nce qib ntawm thev naus laus zis yug tsiaj.

Wang Lixian tau hais tias kev lag luam npua niaj hnub uas muaj kev yug npua loj tab tom txhim kho sai, thiab lub tswv yim yug thiab qib kev tswj hwm tau txhim kho tas li. Los ntawm kev txhim kho qhov chaw yug thiab siv kev kho cov quav tsiaj tsis muaj teeb meem, cov teeb meem ntawm cov kab mob sib kis loj thiab cov tshuaj tua kab mob tau maj mam daws. Lub voj voog loj hlob ntawm npua tau maj mam luv dua, thiab qhov hnyav ntawm txhua tus npua feem ntau yog li 200 kg.