Kev siv cov organic acids tuaj yeem txhim kho kev loj hlob ntawm kev loj hlob broilers thiab npua.Paulicks et al.(1996) tau ua qhov kev sim tshuaj titration los ntsuas cov txiaj ntsig ntawm kev nce qib potassium dicarboxylate ntawm kev ua haujlwm ntawm cov piglets loj hlob.0, 0.4, 0.8, 1.2, 1.6, 2.0, 2.4 thiab 2.8%poov tshuaj dicarboxylatetau ntxiv rau qhov qhib pub ntawm piglets pub pob kws soybean raws li kev noj haus.Qhov nruab nrab txhua hnub nce, kev noj zaub mov txhua hnub thiab kev hloov pauv hloov pauv ntawm pawg poov tshuaj dicarboxylate tau nce los ntawm 13%, 9% thiab 4% feem.Piv nrog rau cov pab pawg tsis kho, ntxiv 2% PD nce lub cev hnyav los ntawm 22%.Raws li qhov siab tshaj plaws ntxiv sau npe los ntawm European tub ceev xwm ntawm 1.8%, qhov hnyav tuaj yeem nce mus rau 14%.Pub noj tau nce ntxiv ntawm tib koob tshuaj.Pub hloov pauv tus nqi (FCR) txo qis linearly nrog qhov nce ntawm PD, los ntawm 1.59 txog 1.47.Qee cov kws tshawb fawb tau tshawb xyuas qhov cuam tshuam ntawm PD ntawm kev ua haujlwm ntawm npua.Table 1 qhia txog cov txiaj ntsig kev sim ntawm cov teebmeem ntawm PD ntawm qhov hnyav nce (WG) thiab FCR.

Cov teebmeem ntawm potassium dicarboxylate rau tsiaj hnyav nce thiab pub hloov pauv

Potassium dicarboxylatetau sau npe ua tus txhawb nqa kev loj hlob tsis yog tshuaj tua kab mob, uas yog lub hom phiaj los hloov cov tshuaj tua kab mob hauv kev pub noj thiab ua kom cov neeg siv khoom nkag mus rau cov khoom muaj kev nyab xeeb.Yog li ntawd, cov txiaj ntsig ntawm kev siv cov poov tshuaj dicarboxylate yuav tsum tau muab piv nrog cov txiaj ntsig ntawm kev siv cov tshuaj tua kab mob noj txhua hnub.Tylosin yog ib qho ntawm feem ntau siv tshuaj tua kab mob rau npua.Danielsen (1998) piv qhov kev loj hlob ntawm npua kho nrog tshuaj tua kab mob loj hlob txhawb tylosin lossis PD.Cov txiaj ntsig tau pom tias potassium dicarboxylate tuaj yeem hloov cov tshuaj tua kab mob uas tsis muaj qhov tsis zoo rau cov tsiaj ua haujlwm.Cov kev tshawb fawb tau pom tias cov poov tshuaj dicarboxylate txhim kho kev loj hlob ntawm cov tsiaj, thiab cov tshuaj tua kab mob ntawm cov poov tshuaj dicarboxylate yog qhov tseem ceeb cuam tshuam rau kev loj hlob.

Cov nyhuv ntawm cov organic acids ntawm kev loj hlob kev ua tau zoo tsis yog tsuas yog cuam tshuam rau kev cuam tshuam ntawm cov organic acids ntawm cov kab mob, tab sis kuj txo cov plab hnyuv pH.Tsis tas li ntawd, qhov tsis zoo ions ntawm cov kua qaub muaj txiaj ntsig zoo rau kev ua haujlwm ntawm cov hnyuv.Tag nrho cov teebmeem no txo ​​qis cov metabolism hauv nruab nrab thiab pab txhim kho kev loj hlob.Kev txhim kho ntawm kev siv cov khoom noj khoom haus yog ib feem ntawm kev txo qis ntawm microbial kev sib tw rau cov as-ham, tab sis nws kuj yog qhov tshwm sim ntawm kev ua kom zoo dua ntawm cov enzyme digestion ntawm cov as-ham.Roth et al.(1998) tau tshaj tawm tias 1.8% PD supplementation txhim kho digestibility, feem ntau cuam tshuam txog kev hloov ntawm plab hnyuv microbiota.Txij li hais txog 80% ntawm cov nitrogen hauv cov quav los ntawm cov kab mob, lawv cov txiaj ntsig tau pom tias PD supplementation tuaj yeem txo cov nyiaj fermentable as-ham nkag mus rau hauv lub hindgut los ntawm kev txhim kho cov enzymatic digestion ntawm txoj hnyuv me.Lawv kuj tau hais tias nws tuaj yeem txhim kho lub xeev ntshiv ntawm lub cev los ntawm kev ua cov amino acids yooj yim dua rau cov protein hauv lub cev.Partanene thiab Mroz (1999) tau taw qhia tias cov khoom noj muaj protein tsawg muaj txiaj ntsig zoo dua rau kev txhim kho cov protein digestibility dua li cov khoom muaj protein ntau.

Potassium dicarboxylate tuaj yeem txhim kho tsiaj qhov hnyav nce, noj kom tsawg thiab pub hloov pauv.Kev txhim kho ntawm kev loj hlob kev ua tau zoo yog sib npaug ntawm kev txhawb nqa kev loj hlob.Yog li ntawd, potassium dicarboxylate tau dhau los ua ib qho kev hloov pauv zoo rau cov tshuaj tua kab mob vim nws cov khoom zoo heev.Kev cuam tshuam ntawm microflora yog suav tias yog hom tseem ceeb ntawm kev ua, thiab tsis muaj kev pheej hmoo ntawm microbial tsis kam.Nws txo qhov tshwm sim ntawm E. coli thiab Salmonella hauv cov khoom noj nqaij.