豆秸、飼用甜高粱飼喂綿羊效果研究.pdf

1、河北農(nóng)業(yè)大學(xué)碩士學(xué)位論文豆秸、飼用甜高粱飼喂綿羊效果研究姓名：劉潔申請學(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：張英杰20090606StudiesontheFeedingEffectsofSoybeanstrawFeedingSweetSghuminSheepMasterCidate:LIUJieSupervis:ZHANGYingjie(Profess)Maj:RuminantNutritionFeedScience(Coll

2、egeofAnimalScienceTechnologyAgriculturalUniversityofHebeiBaoding071000)AbstractThispaperaimstoopenupnewresourcesofroughagetoprovidethetechnicalguidancebasisfscientificrearingoflivestock.Twokindsofroughagefages(soybeanstr

3、awfeedingsweetsghum)wereusedtostudytheirfeedingeffectsfsheepraising.Influencesoffeedswithdifferentproptionsofthetwokindsoffagesinhayonbodyweightgainapparentdigestibilitynitrogenbalanceofthemixedfeedswereevaluatedrespecti

4、vely.TwoexperimentswereconductedtostudyfeedingeffectsofsoybeanstrawwhichstudiedinExp.1thatoffeedingsweetsghumwhichevaluatedinExp.2.TheExp.1wasconductedtostudytheeffectsofsoybeanstrawonbodyweightgainapparentdigestibilityn

5、itrogenbalanceinsheep.FiftyoneDsetewesinacompletelyromizeddesignwereromlydividedinto3groups17sheepeach.Ineachgroupsheepwerefedwiththeequalconcentratewhiletheroughagewere100%soybeanstraw(GroupI)50%soybeanstraw50%hay(Group

6、Ⅱ)100%hay(controlgroup)respectively.TheobjectiveofExp.2wastoevaluatetheeffectsoffeedingsweetsghumonbodyweightgainapparentdigestibilitynitrogenbalanceinsheep.FiftyoneDsetewesinacompletelyromizeddesignwereromlyallotedto3gr

7、oupswith17sheeppergroup.Ineachgroupsheepwerefedwiththeequalconcentratewhiletheroughageswere100%feedingsweetsghum(A)50%feedingsweetsghum50%hay(B)100%hay(control)respectively.Theresultsofthetwoexperimentswereasfollows.Exp.

8、1.Theresultsindicatedthataveragedailygain(ADG)ofgroupⅡwassignificantlyhigherthanthatofthecontrolgroup(P0.05).Theetherextract(EE)digestibilityofgroupⅠⅡwassignificantlyhigherthanthatofthecontrolgroup(P0.05).Comparedwithneu