Pub yog tus yuam sij rau tus npua noj kom zoo.Nws yog qhov tsim nyog ntsuas txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawmFeem ntau hais lus, qhov feem pua ​​​​ntawm cov khoom noj ntxiv hauv cov khoom noj yuav tsis pub tshaj 4%, uas yog siab dua, thiab tus nqi nce yuav nce ntxiv, uas tsis tsim nyog rau cov neeg ua liaj ua teb.

Nqe Lus Nug 1: yog vim li cas npua thiaj li xav tau zaub mov noj thiab pub additives tam sim no?

npua rog, tus yuam sij yog noj puv, noj zoo.

Qiao Shiyan, tus xibfwb ntawm China Agricultural University, tau hais tias kev noj zaub mov yog tus yuam sij rau npua noj kom zoo.Pub thiabpub additivesyog cov khoom siv hauv paus thiab kev lav phib xaub ntawm kev lag luam npua niaj hnub, kev ntsuas tsim nyog los ntxiv cov khoom noj khoom haus npua thiab ua kom cov khoom zoo, thiab tseem yog cov cuab yeej siv dav hauv ntiaj teb.Kev siv tshuab yug me nyuam, pub siv, kev yug me nyuam, kev loj hlob ntawm npua, nqaij zoo thiab kev nyab xeeb ntawm cov khoom ntawm Tuam Tshoj yog qhov pib zoo ib yam li Tebchaws Meskas, Lub Tebchaws Yelemees, Denmark thiab lwm lub tebchaws loj npua, Raws li cov qauv thoob ntiaj teb thiab kev lag luam ntshuam thiab xa tawm. qauv.

Pub additives, uas muaj xws likhoom noj khoom haus additives, general additives thiabtshuaj additives, muaj qhov cuam tshuam me ntsis hauv kev pub.Kev noj zaub mov ib txwm tsuas tuaj yeem daws qhov teeb meem ntawm "satiety" ntawm npua, thiab cov khoom noj khoom haus yog tsuas yog pub qib amino acids thiab vitamins, uas yog los daws qhov teeb meem ntawm "kev noj qab haus huv" ntawm npua.Ntxiv qhov tsim nyog ntawm cov tshuaj ntxiv rau hauv qhov pub tuaj yeem tiv thaiv thiab tswj cov kab mob ntau yam ntawm npua.Los ntawm kev siv lub sijhawm tshem tawm cov tshuaj hauv lub sijhawm pub mis, cov tshuaj seem hauv cov nqaij npuas tuaj yeem tswj tau hauv qhov tsis muaj teeb meem.Ntxiv antioxidants thiab lwm yam additives nyob rau hauv pub, feem ntau yog ib tug ntau ntawm cov additives nyob rau hauv cov zaub mov kev lag luam, muaj nyob rau hauv cov zaub mov qib, thiab tsis muaj kev puas tsuaj rau kev loj hlob ntawm npua los yog cov nqaij npuas zoo.

Lub xeev txwv tsis pub ntxiv phenobarbital thiab lwm yam sedative hypnotic thiab anticonvulsant tshuaj nyob rau hauv pub.Nws yog qhov tsis tsim nyog ntxiv cov tshuaj tsaug zog kom cov npua tsaug zog ntau dua, txav tsawg dua thiab loj hlob sai, vim tias kev ua haujlwm ntawm cov npua npua yog me me, yog li tsis xav tau sedatives.Urea, Arsenic Preparation thiab tooj liab raug tso cai ntxiv rau hauv kev pub noj, tab sis lawv txhua tus muaj cov kev txwv nruj thiab yuav tsum tsis txhob siv ntawm qhov xav tau.Urea yog ib hom chiv nitrogen siab.Yog tias ib qho me me ntawm urea siv rau hauv ruminants xws li nyuj thiab yaj, nws tuaj yeem decomposed los ntawm urease secreted los ntawm rumen microorganisms ntawm ruminants, thiab ces nws yuav absorbed thiab zom los ntawm synthesizing protein.Npua tsis muaj rumen kiag li, yog li nws nyuaj rau siv cov nitrogen hauv urea.Yog tias qhov ntau npaum li cas, nws yuav ua rau muaj kev lom thiab tuag ntawm npua.Raws li cov txiaj ntsig ntawm kev ntxiv tooj liab, tsuas yog ntxiv cov tooj liab tsim nyog hauv kev pub noj tuaj yeem txhawb kev loj hlob ntawm npua.Cov txheej txheem tshwj xeeb ntawm kev ntxiv cov tooj liab tsim nyog yog tias tus lej ntawm tooj liab ntxiv hauv 1000 kg pub yuav tsum tsis pub tshaj 200 g.

Nqe lus nug 2: Yuav ua li cas npua loj hlob mus rau 200-300 Jin tom qab 6 lub hlis?

Pig zoo thiab kom muaj nuj nqis, kev yug me nyuam yog qhov tseem ceeb.

Wang Lixian, tus kws tshawb fawb ntawm Beijing Institute of animal husbandry thiab veterinary Medicine ntawm Suav Academy ntawm Kev Tshawb Fawb Txog Kev Ua Liaj Ua Teb, tau hais tias kev tshawb fawb npua tuaj yeem lav qhov zoo thiab muaj nuj nqis.Tam sim no, lub voj voog yug me nyuam ntawm npua feem ntau yog 150-180 hnub.Cov laj thawj tseem ceeb rau kev loj hlob sai thiab luv luv fattening voj voog ntawm npua yog "peb zoo": npua zoo, noj zoo thiab lub voj voog zoo, uas yog, zoo npua yug,kev nyab xeeb pubthiab txhim kho qhov chaw yug me nyuam.Kev tsim cov npua lag luam feem ntau yog ternary hybrid ntawm Duroc, Landrace thiab cov npua dawb loj.Nws yog ib txwm zoo rau cov npua zoo no yuav raug muag hauv li 160 hnub.Lub sijhawm muag ntawm cov npua txawv teb chaws zoo dua yog luv dua.Lub sij hawm fattening ntawm crossbreeding npua nrog lub zos breeds yog ntev heev, thiab lub sij hawm nruab nrab ntawm yug me nyuam yog 180-200 hnub.

Ntawm qhov sib txawv fattening theem ua ntej npua slaughter, noj ntau npaum li cas sib txawv, thiab tag nrho cov pub noj yog li 300 kg.Lub voj voog loj hlob ntawm npua yuav nce ntxiv los ntawm tsawg kawg ib hlis yog tias lawv tsis pub noj thiab tsuas yog pub nrog cov khoom noj nqaij npua xws li coarse cereals thiab npua nyom.Txoj kev loj hlob thiab kev siv cov khoom noj niaj hnub no thiab cov khoom noj ntxiv tau zoo heev txhim kho tus nqi hloov pauv hloov pauv, txo tus nqi ntawm npua ntau lawm, thiab nteg lub hauv paus kev tshawb fawb rau npua kev lag luam kom tau txais txiaj ntsig zoo hauv zej zog thiab kev lag luam.Nws tau kwv yees tias nrog kev siv cov kev tshawb fawb thiab thev naus laus zis niaj hnub no, kev hloov pauv ntawm cov mis pub mis hauv Suav teb tau nce ntxiv, thiab kev koom tes ntawm kev tshawb fawb thiab thev naus laus zis rau tsiaj txhu tau ntau dua 40%.Kev hloov pauv ntawm npua mis pub tau nce los ntawm 4 ∶ 1 ∶ 1 ∶ 1. Yav dhau los, nws siv sijhawm ib xyoos los tsa tus npua, tab sis tam sim no nws tuaj yeem muag tau rau lub hlis, uas yog sib cais los ntawm kev sib npaug ntawm cov khoom noj thiab kev yug me nyuam. kev vam meej.

Wang Lixian tau hais tias kev lag luam npua niaj hnub no yog tus cwj pwm los ntawm kev loj hlob ntawm npua loj hlob sai, thiab lub tswv yim ntawm kev yug me nyuam thiab kev tswj hwm qib tau txhim kho tas li.Los ntawm kev txhim kho qhov chaw yug me nyuam thiab siv cov kev kho mob tsis zoo ntawm cov tsiaj txhu, cov teeb meem ntawm cov kab mob loj thiab cov tshuaj tua kab mob tau maj mam daws.Lub voj voog loj hlob ntawm npua tau maj mam luv, thiab qhov hnyav ntawm txhua tus npua yog feem ntau txog 200 kg.