蛋形指数对蛋壳强度、孵化失重、羊水及尿囊液量影响研究

eightLoss,YANGHai—ming,GUOChun—yan,WANQiu—bei,WANGZhi—yue(CollegeofAnimalScienceandTechnology,YangzhouUniversity,Yangzhou225009,China)Abstract:Inthisexperiment,eggshapeindex,eggweightlossintheincubation,allantoicandamnioticfluidvolumeweremensuratedandanalysed.Theresultsshowedthattheeggshapeindexwascorrelativewiththeeggshellstrengh,andthecoef—ficientwas0.30.Theeggshellstrengthwasbigestwhentheeggshapeindexwasfrom0.800tO0.819,morethanandlessthantherange,thestrengthtrendedtOdescend.Whentheeggshapeindexwasfrom0.780tO0.799,theeggweightlosswashighest,butallantoicandamnioticfluidvolumeweresmallest,morethanandlessthantherange,theweightlossminishedgradually,howeverallantoicandamnioticfluidvolumeincreasedlittlebylittle.Keywords:eggshapeindex;eggshellstrength;eggweightloss;allantoicfluid;amnioticfluid