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Nyuj Nyuj

Cov txiaj ntsig ntawm Kev Noj Qab Haus Huv ntawm Kev Pub Mis thiab Muaj Cov Mis Nyuj Nyuj

Muab lo rau  Kaum ib hlis 28, 2019, Kho los ntawm Victoria, Qeb  

1. Cov carbohydrates
Carbohydrates suav nrog cov tsis muaj fiber ntau carbohydrates thiab fibers. Ntawm lawv, cov carbohydrates tsis muaj fiber ntau suav nrog cov hmoov txhuv nplej siab, qab zib, thiab pectin. Qhov feem pua ​​​​ntawm cov tsis muaj fiber ntau hauv cov khoom noj ntawm cov nyuj yuav tsum yog 20% ​​-45%. Qhov ntau yam no yog txiav txim los ntawm qhov feem ntawm cov concentrate rau roughage hauv kev noj haus. Rau kev noj zaub mov tsis zoo, tsis muaj fiber ntau carbohydrates yuav tsum yog 40% -40%. Kev noj zaub mov kom tsim nyog ntawm cov tsis muaj fiber ntau tuaj yeem txhim kho tau zoo mis nyuj zoo, tsis tsuas yog tuaj yeem txhim kho cov mis nyuj rog, tab sis kuj tuaj yeem txhim kho cov kua mis protein ntau. Yog tias noj ntau dhau, cov kua mis protein ntau thiab cov mis nyuj rog yuav txo. Yog li ntawd, thaum pub mis nyuj noj, yuav tsum tau them nyiaj tshwj xeeb rau kev txwv qhov pub mis kom tsis txhob muaj qhov tshwm sim ntawm rumen acidosis, kev poob ntawm cov mis nyuj tsis zoo, thiab kev noj zaub mov tsis zoo ntawm cov nyuj uas ua rau cov kua mis poob qis.

Cov mis nyuj tsuas yog pub rau roughage, yog li cov fiber ntau muaj feem cuam tshuam rau qhov tseem ceeb rumen kev noj qab haus huv, tsim kua mis, thiab muaj pes tsawg leeg ntawm cov mis nyuj. Cov ntsiab lus ntawm fiber ntau tuaj yeem txhawb nqa rumen fermentation thiab qaub ncaug secretion, thiab tswj cov mis nyuj protein thiab mis nyuj rog cov ntsiab lus hauv cov mis nyuj tseem ceeb heev. Yog li, qhov qis tshaj acid detergent fiber thiab nruab nrab detergent fiber nyob rau hauv cov mis nyuj noj yuav tsum yog 19% -21% thiab 25% -28% feem. Yog tias lawv qis dua li cov qib saum toj no, lawv yuav ua rau cov mis nyuj muaj roj tsawg, acidosis thiab kev noj qab haus huv ntawm cov nyuj tsis zoo.

Txawm li cas los xij, nws yuav tsum tau muab sau tseg tias qhov kev faib ua feem ntawm crude fibers yuav tsum tsis txhob siab dhau, txwv tsis pub cov mis nyuj protein cov ntsiab lus yuav cuam tshuam. Nws yog feem ntau yuav tsum tau pub 40 ~ 50% ntawm roughage. Yog hais tias cov khoom noj ntawm roughage siab tshaj 65%, qhov zoo tshaj plaws roughage yuav tsum tau xaiv kom tsis txhob muaj cov mis nyuj protein tsawg. Tsis tas li ntawd, qhov ntev ntawm fiber ntau kuj tseem ceeb heev, kom ntseeg tau tias qhov pub me me txaus, qhov nkag tsis tau yog luv dhau, lossis cov hmoov zoo dhau lawm, thiab cov nyom yuav tsum tsis pub tsawg dua 1 cm, txwv tsis pub nws yuav ua rau muaj kev puas tsuaj. ntse poob rau hauv mis nyuj tus nqi.

Nyuj Nyuj
Nyuj Nyuj

2. Kev Cuam Tshuam
Cov kua mis tawm ntawm cov nyuj nyuj nce ntxiv nrog qhov nce ntawm cov ntsiab lus ntawm cov protein ntau hauv cov khoom noj. Qhov kev xav tau ntawm cov protein ntau ntawm cov nyuj uas muaj txiaj ntsig zoo tshaj qhov kev sib txuas ntawm rumen protein. Yog li ntawd, nyob rau hauv ib co ua liaj ua teb, cov ntsiab lus ntawm crude protein nyob rau hauv cov zaub mov tau nce mus rau 17.5% nyob rau hauv thaum ntxov lactation theem, thiab tus nqi ntawm rumen-dhau protein suav nrog 35% - 37%. Txawm li cas los xij, kev tsim cov mis nyuj ntawm cov nyuj yog tsis muaj kev txwv. Piv txwv li, thaum cottonseed yog siv los ua ib qho ntxiv ntawm cov protein ntau, mis nyuj yield thiab mis nyuj rog feem pua ​​​​nce ntxiv nrog rau qhov nce ntawm crude protein cov ntsiab lus nyob rau hauv cov khoom noj. Thaum cov ntsiab lus ntawm cov protein ntau tshaj 17.5%, mis nyuj ntau lawm yuav luag tsis nce ntxiv. Tsis tas li ntawd, cov khoom noj protein sib txawv muaj ntau hom kev tiv thaiv, mis nyuj yield, thiab mis nyuj rog.

Piv txwv li, kev siv cov kua txiv hmab txiv ntoo tuaj yeem ua rau cov mis nyuj muaj roj ntau ntxiv, thaum siv cov kua txiv hmab txiv ntoo tuaj yeem txhim kho. mis nyuj tawm, tab sis cov mis nyuj rog tsis cuam tshuam. Tus nqi ntawm cov protein degradable thiab rumen protein nyob rau hauv kev noj haus ntawm nyuj nyuj muaj ib qho tseem ceeb ntawm cov mis nyuj yield thiab mis nyuj muaj pes tsawg leeg. Rumen degradable protein thiab rumen-dhau protein feem ntau yuav tsum tau account rau 65% ntawm tag nrho cov protein nyob rau hauv cov zaub mov. Yog tias lawv tsawg dhau, cov kua mis ntau thiab cov ntsiab lus hauv cov mis nyuj yuav raug txo.

Cov khoom noj khoom haus ntawm rumen-dhau protein yog qhov tseem ceeb heev rau kev txhim kho cov kua mis thiab mis nyuj muaj pes tsawg leeg ntawm tej nyuj. Tab sis thaum ntxiv rumen-dhau protein, peb yuav tsum xyuam xim rau seb cov amino acids uas muaj nyob rau hauv ntxiv rumen-dhau protein phim cov amino acids tsis muaj nyob rau hauv lub cev. Txwv tsis pub, txawm hais tias tus nqi ntawm rumen-dhau protein ntau ntxiv, nws yuav tsis nce cov kua mis tawm thiab cov mis nyuj muaj pes tsawg leeg vim tias cov amino acid xav tau los ntawm lub cev tsis ntau lossis tsis nce ntxiv.

Nyuj Nyuj
Nyuj Nyuj

3. Rog
Rau cov nyuj uas tau txais txiaj ntsig siab, yuav muaj qhov tshwm sim ntawm qhov tsis zoo ntawm lub zog sib npaug ntawm lub sijhawm thaum ntxov thiab nruab nrab lactation, thiab lub zog nyuaj rau kev ua kom tau raws li qhov xav tau ntawm cov nyuj. Txhawm rau txhim kho qib zog hauv kev noj zaub mov tsis tas yuav txo cov fiber ntau hauv cov zaub mov, txoj kev ntxiv cov rog tuaj yeem siv los ua kom lub zog concentration hauv kev noj haus. Qhov no yog vim tias rog tuaj yeem txo qis kev ua haujlwm microbial thiab cellulose digestibility. Cov roj rumen ntxiv los yog cov rog tsis muaj zog tuaj yeem nkag mus rau hauv cov hnyuv ncaj qha yam tsis muaj hydrolysis hauv rumen thiab yuav zom thiab nqus tau. Yog li ntawd, nws tuaj yeem tsis tsuas yog muab lub zog tab sis kuj tsis txhob cuam tshuam rau kev zom zaub mov thiab kev nqus ntawm lwm cov as-ham. Qee cov kev tshawb fawb tau pom tias kev noj zaub mov muaj roj tuaj yeem ua rau cov kua mis nce ntxiv, tab sis cov mis nyuj protein yuav txo qis, thaum ntxiv cov roj zaub yuav txo cov mis nyuj rog, thiab ntxiv cov roj inert thiab rumen-tiv thaiv rog yuav ua rau cov mis nyuj muaj roj ntau. .

4. Cov tshuaj ntxiv
Hauv kev xyaum, qee qhov pub additives feem ntau yog siv los txhim kho cov kua mis tawm thiab cov kua mis muaj pes tsawg leeg ntawm cov mis nyuj. Feem ntau siv additives yog tsuas yog preservative amino acids. Cov kev tshawb fawb tau pom tias kev noj zaub mov ntxiv ntawm kev tiv thaiv methionine thiab lysine tuaj yeem txhim kho cov kua mis protein, thiab cov txiaj ntsig ntawm ob qho tshuaj ntxiv yog zoo dua li ntawm ib qho ntxiv.

Tsis tuaj yeem cuam tshuam qhov nce ntawm rumen acid tshwm sim los ntawm kev noj zaub mov kom zoo, tshwj xeeb tshaj yog rau cov nyuj uas muaj txiaj ntsig zoo, thaum pub mis tsis muaj fiber ntau thiab noj zaub mov, ntxiv tsis tuaj yeem txhim kho cov kua mis tawm thiab cov mis nyuj rog. Buffers feem ntau siv hauv kev tsim khoom feem ntau suav nrog sodium bicarbonate, sodium carbonate, magnesium hydroxide, bentonite thiab lwm yam.

5. Sodium acetate.
acetic acid yog cov khoom tseem ceeb ntawm cov mis nyuj hluavtaws, thiab kev puas tsuaj ntawm crude fibers nyob rau hauv lub rumen tsim acetic acid, uas yog lub ntsiab yog vim li cas rau cov mis nyuj muaj roj ntau. pub nrog roughage. Rau cov nyuj uas tau txais txiaj ntsig zoo, kom tswj tau qib kev noj qab haus huv, qhov pub kom muaj nuj nqis ntawm roughage tsawg dua, thiab cov mis nyuj rog tuaj yeem nce ntxiv los ntawm kev ntxiv sodium acetate. Tsis tas li ntawd, qhov sib ntxiv ntawm sodium acetate kuj ua lub luag haujlwm tsis nyob hauv kev kub ntxhov.

Tsis tas li ntawd, qhov sib ntxiv ntawm qee cov kab kawm, xws li tooj liab, zinc, selenium, thiab iodine, tuaj yeem txhim kho cov kua mis ua haujlwm ntawm cov nyuj, thiab tseem muaj qee lub luag haujlwm hauv kev txhim kho cov kua mis protein thiab mis nyuj rog. Kev siv ntawm tag nrho cov khoom sib xyaw xyuas kom meej tias cov as-ham hauv kev noj zaub mov kom txaus thiab qhov kev faib ua feem ntawm cov concentrate rau roughage yog tsim nyog,

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