外形鑒別法 一般情況下,雄雛體型較大,身體較長,頭大頸長,眼較圓,翼梢無絨毛,腹麵稍平,站立較直;雌雛體型較小,身子短圓,頭小頸短,眼橢圓形,翼梢有絨毛,腹下垂,站立時身體傾斜。雄雛受驚時叫聲高、尖、清晰,雌雛叫聲低、粗、沉悶。
翻肛法 翻fan肛gang時shi,捉zhuo住zhu雛chu鵝e頸jing部bu,將jiang其qi腹fu部bu朝chao上shang放fang置zhi在zai桌zhuo麵mian上shang或huo操cao作zuo者zhe膝xi部bu。將jiang其qi尾wei部bu向xiang背bei側ce分fen開kai,暴bao露lu泄xie殖zhi腔qiang。一yi手shou指zhi戴dai上shang指zhi套tao並bing塗tu抹mo凡fan士shi林lin後hou,伸shen入ru泄xie殖zhi腔qiang內nei1.5limi,qingqingzuoyuanzhouanmo,shixiezhiqiangkuoyuejisongchi,ranhouxiangxiaanyadakaixiezhiqiang,youtuchuyinjingzheweixiongchu,zhiyousanjiaobanxingzhouzhezheweicichu。xiongchushengzhiqiguanchangyue0.5厘米,呈螺旋形。
捏肛法 caozuoshizuoshouzhuoe,shichuebeibuchaoshang,hukoutiezaiqiyaojianbu,jiangejinggudingzaixiaomuzhiyiduan,ranhouyongyoushoumuzhiheshizhizaiegangmenwaikaozhongxiabuqingqingrounie,ganjiaoyouzhimalidaxiaotuqizheweixiongchu,fouzeshicichu。zhuyituqichuweiyugangmenxiafang。
頂肛法 頂肛法是捏肛法達到一定熟練程度後的升華技術,非初學者能夠掌握。操行方法:左手固定雛鵝(同捏肛法),右手中指從其肛門下端輕輕上頂,感覺有芝麻粒大小突起者即為雄雛,沒有的即為雌雛。
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