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1、羊的人工受精技术（Artificialinseminationofsheep）Sheepartificialinseminationtechnology(1)artificialinseminationtechnologycanbedividedintotwoclassesofthreeways:first,thereisliquidsemenartificialinseminationtechnology,andcanbedividedintotwokindsofmethods,(1)freshspermor1:2~4atlowdilutions
2、emenartificialinseminationtechnology,aramforayearcanmatchtheewesthan500~1000,thanwithramthisincreasedbymorethan10to20times.Inthisway,thesemenisnotdilutedordiluted,andthefemalesheepisimmediatelylosttothesheep.Itissuitablefortheseasonalestrusoftheewes,andtheareaismoreabundant.Se
3、men1:20~50,highdilutionartificialinseminationtechnique,oneramcanbemixedwithmorethan10,000femalesayear,morethan200timesmorethanthepresent.Haimen,jiangsuprovince,islocatedintheYangtzeriverdelta,thetransportationisconvenient,formanyyears,theuseofthistechnology,thecityonlyamodifie
4、dstandinghighdilutionsemen,eachtownslosefinepoints,unifiedforjing,amalesheepbreedingeweseachyear10000~10000,purephaseconceptionratecanreach90%.Liquidsemencanbewastedwhenitispoorlyorganized,orinareaswherethereislessmaternalandsheepinthemountainousareaandintraffic.Itreducestheut
5、ilizationofsemen.Thesecondtypeistheartificialinseminationtechniqueoffrozensemen,whichcanstorethesemenofthemalegoatallyearlong,andcanbeusedinanyplaceandtime.Ifgranulefrozensemenisproduced,thesemenofamalesheepcanbefrozen10,000~20,000granuleinayear,whichcanbeusedfor2500~5000femal
6、es.Howmuchdefrostsemenisuseddoesnotcausewaste.However,theincidencerateislow,thehighisover50%,thelowisonly30%~40%,thecostishigh,theeffectispoor.1)willnowbethespecificoperationtechnology(1)preparinga,semencollection(1)1.Thekindsoframsemencollectionset-up(1)generally,saidramsemen
7、collectionisrelativelyeasy,butsomeoftheBoergoatRAMS,especiallyforthefirsttimetoparticipateinthebreedingofRAMS,that'sjustnoteasyextractionsemen,cantakethefollowingmeasures:(1).Withringmethod:willnotclimbacrosstheestrusandseveralRAMSandewesclosetogetherinafewnight,oritsmixedgrou
8、pandRAMSbegantoclimbacrossinafewdays.(2)themethodofelicitatio
