1、東北農(nóng)業(yè)大學(xué)碩士學(xué)位論文脲酶抑制劑對山羊瘤胃氮代謝及營養(yǎng)物質(zhì)消化率的影響姓名：李大剛申請學(xué)位級別：碩士專業(yè)：動物營養(yǎng)與飼料科學(xué)指導(dǎo)教師：李杰2003.5.1TheEffectofUreaseInhibitorsonNi拉ogenMetabolismAndRateofNutrientDigestionInGoatRumenAbstactFour20kgsixmontholdgoatswithpermanentremencannulaWer

2、eusedtostudytheeffectofthreekindsofureaseinhibitorsacetohydroxamicacid(AHA)、hydroquinone(HQ)、yuccaextract(YU)onnitrogenmetabolism、nutrientdegradabilityinrllmenandnutrientdigestibilityThegoatswerefeedoneoffourdietswith1％U

3、leathatcontainedbasicdietAHA25mg／kg，YU120mg／kg，HQ40mg／kgTheexperimentdesignwasa4x4LatinSquare“Idal1pHvalue、AmmoniaconcentrationandUreaNconcentrationofruminalfluidweresampledat0，2，4，6and8hafterfeedingTheresultshowedthatpH

4、valuesweredecreasedafterfeedingandbegintogetbackafterfeeding6hHQdecreaseAmmoniaconcentration1524％(p005)啊al2111eexperimentdietary、theexperimentanimalsand111eexperimentdesignwerethesameastheTdal111他e彘ctoftheAHA、YUandHOonth

5、edegradabilityofDM，CP，NDFandADFinthertlmenwereevaluatedTheresultshowedthattheAHAandHQincreasethedegradabilityofDM1387％and1685％，AHAincreasedthedegradabilityofCPWas689％(p005)AHAandHQincreasethedegradabilityofNDF939％and1344

6、％comparedwithcontroltreahnent(P005)ComparedwithcontroltreatmentHOincreasethedegradabilityofADFWas1367／“P005)誚al3111eexperimentdietary、111eexperimentanimalsandTheexperimentdesignwerethesameasthe州al1Inthisexperimenttheeffe

7、ctofAHA、YU、HQonthenutrientapparentdigestibiI畸ofDM，CP，NDFandADFwerestudiedTheresultshowedt11attheHQcanincreasethedigestibilityofDM1231。／0(9005)111eAHAandHQcompared、ⅣitllcontroltreatmentincreasethedigestibilityofcP627％and4