1、发情前期:卵泡发育期2-4天发情后期:黄体形成期3-6天间情期:黄体期10-12天发情期:允许公畜期12-18小时卵泡期Estrogens黄体期Progesterone外阴部肿大外阴部缩小,发情后出血（30%）黄体左侧:黄体,右侧:黄体切面外阴部收缩发情日发情日(Day 0)(Day 0)的卵巢的卵巢左侧卵槽左侧卵槽:2个卵泡,1个黄体退化1=卵泡,2=黄体退化,5=卵巢实质 发情后第二天卵巢发情后第二天卵巢左侧卵巢:出血体1=卵泡,2=出血体 4=黄体退化,5=卵巢实质 发情后第发情后第4 4天卵巢天卵巢左侧卵巢:出血体1=卵泡,2=出血体,4=黄体退化,5=卵巢实质 发情后第发情后第7 7
2、天卵巢天卵巢左侧卵巢:黄体,右侧卵巢:卵泡Legend:2=黄体,5=卵巢实质 发情后第发情后第9 9天卵巢天卵巢左侧卵巢:黄体,右侧卵巢:大型卵泡2=黄体,4=白體,5=卵巢实质 发情后第发情后第1414天卵巢天卵巢左侧卵巢:黄体,右侧卵巢:卵泡1=卵泡,3=黄体,5=卵巢实质发情后第发情后第1616天卵巢天卵巢左侧卵巢:黄体,右侧卵巢:卵泡1=黄体,4=白体,5=卵巢实质 发情后第发情后第1717天卵巢天卵巢左侧卵巢:黄体退化+卵泡,右侧卵巢:大型卵泡1=卵泡,2=黄体退化,5=卵巢实质发情后第发情后第2020天（天（1 1天前排卵）卵巢天前排卵）卵巢左侧卵巢:黄体退化+大型卵巢1=卵泡,
3、2=黄体退化,5=卵泡实质爬夸其它牛爬夸其它牛背其它牛(允许)发情粘液肉眼观察肉眼观察发情爬夸检测仪发情爬夸检测仪Heat Mount DetectorHeat Mount Detector不透明盖光亮的塑料囊细口水样红色染料发情爬夸检测仪发情爬夸检测仪尾部着色尾部着色Tail Head PaintinTail Head Painting g尾部记号尾部记号TailheadTailhead Marking Marking部分脱落部分脱落Partially Rubbed OfPartially Rubbed Off f90%90%脱色脱色Rubbed OffRubbed Off尾部记号尾部记号T
4、ailheadTailhead Chalking Chalking 阴道探测和电表阴道探测和电表Vaginal Probe and the Electrical Resistance MeterVaginal Probe and the Electrical Resistance Meter电表探测阴道分泌物电表探测阴道分泌物Measuring of the Electrical Resistance of the Vaginal SecretionsMeasuring of the Electrical Resistance of the Vaginal SecretionsMeasurin
5、g of the ElMeasuring of the Electrical Resistance ectrical Resistance of the Vaginal Secrof the Vaginal SecretionsetionsTeaser Bull with Lateral Deviation of the PeniTeaser Bull with Lateral Deviation of the Penis sPenectomizedPenectomized Teaser TeaserChinballChinball Marking Harness in Place Marki
6、ng Harness in Place有记号的小母牛有记号的小母牛Marked HeiferMarked Heifer步程计步程计PedomPedometereter发情开始发情结束 排卵卵子死亡0183050226*50-48=2 2-26(受精时期)*50-24=26妊娠55天胎儿妊娠55天双胞胎镇痛初期镇痛初期:露出羊膜露出羊膜镇痛初期:露出羊膜镇痛初期：露出前肢 分娩 第2期:胎儿露出正常分娩姿势检查产道正常分娩姿势正常分娩姿势现现在在牵牵引一支前肢引一支前肢，然后然后牵牵引另一支前肢引另一支前肢饲喂初乳:分娩后 2小时以内饲喂 3-4 公升Happy EndingHappy Ending
