放牧山黑豬對飼草采食性的研究.pdf

1、吉林農(nóng)業(yè)大學(xué)碩士學(xué)位論文放牧山黑豬對飼草采食性的研究姓名：孟安華申請學(xué)位級別：碩士專業(yè)：草業(yè)科學(xué)指導(dǎo)教師：婁玉杰20080601Food—habitsofgrazingShanheipigAbstractAsChina‘saccessiontotheWTOandtherealizationofglobaleconomicintegrationChineseanimalhusbandrytotheworldofanimalhusbandr

2、yandconvergence，wemustbreakthetraditionalmodeofdevelopmentandtaketheorganicdevelopmentNortheastofChinahasagoodecologicalenvironmentandresourceadvantagesinorganiclivestockShanheipigisleanpiginnorthChina，isthefinevarietytr

3、ainedbymoderngeneticbreedingtechnologyInaccordancewiththerequirementsoforganicpigproductioninitsgro訊hcycle，acertainperiodoftimemustbekeptgrazmgafterthreemonthsfeedingItisgreatsignificanceforproductionofShanheipigthatShai

4、heipigintakeconditioninthehabitsofforagePlantspeciesandnumbergrazedby47ShanHeipigs，werestudiedbycombiningdirectobservationandmicrohistologicalanalysisinXiyangTownYongjiCountyJilinProvinceinM姒JulyandOctoberTheresultsshowe

5、dthat48plantspeciesweregrazedbyShanHeipig，including20families(40species)seedplants，6ferns，lmossandllichenAwidevarietyofforagegrasswasgrazed，herbagesconstitute59％，woodplantconstitute29％，fernconstitute8％Lichenandmossoccasi

6、onallyweregrazedAbovegroundplantisthemainintake，inparticularmorestemsandyom馮leaves，lessfruitcategoryIntakeofshrubsandarborsweremainlyUlmuspropinquafollowedbyyoungshootsoftheQuercusmongolicaAcerginnalaJuglansmandshuricaba

7、rkofLarixandSOonIntakeofherbagesmainlyconcentratedinCarexcallitrichosLathyrushumilisandTrifoliumrepenswerehigherdegreeofpreferenceFromtheclassificationofplants，theShanheipighigherintakeofplantsconcentratedintheCyperaccae

8、，LeguminosaeandAceraceaeIntakeWaschangedwiththeseasonsComparedtotheautumn，herbagesintakealemoreinslimmerUlmuspropinqua，AcerginnalaandCarexcallitrichosaremoreeaten，mossandlichenarelesseateninsummerandautumnTheplantskinand

9、ShanheipigdejectawereobservedbythemicrohistologicalanalysisTheplantspeciesShanheipiggrazedWasidentifiedinaccordancewiththehornycellstructureinindigesteddejectaThoseresultsweresimilartotheresultstlIatwerebasedonthedirecto