GnRH类似物在猪定时输精上的正确使用大卫·雷耶罗Vetoquino.pdf

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1、FTAI in Swine based on GnRH analoguesGnRH类似物在猪定时输精上的正确使用REYERO David Vetoquinol 大卫雷耶罗 内容母猪的发情周期回顾猪FTAI的现有方案猪场的效益母猪的发情周期Oestrus cycle of the sowOestrus cycle of the sow母猪的发情周期母猪的发情周期day 115分娩farrowing断奶weaning配种breedinglactation 14 to 28 days14-28天泌乳weaning to oestrus interval 3 to 8 days断奶至发情间隔3-8天

2、Oestrus day 0,ovulation and fertilization.发情，排卵和受胎Uterine entry day 2 to 3 进入子宫2-3天Embryos migrate and space out day 7 to 10胚胎迁移并在第7天到第10天“分开”Maternal recognition of pregnancy day 12 to 14怀孕第12至14天Graphical representation(scale is not precise)of the reproduction time line in sows.Depending on zoo-te

3、chnical and/or selected production schemes per the preference of the producer,lactation days/weaning timing is variable but most will work between 21 to 28 days.根据生产者偏好选择的生产方案，泌乳天数/断奶时间是可变的，但大多数将在21至28天之间工作。母猪繁殖时间线的图形表示15 Sow reproduction milestones.day 115farrowingweaningbreedinglactation 14 to 28

4、daysweaning to oestrus interval 3 to 8 days Oestrus day 0,ovulation and fertilization.Uterine entry day 2 to 3Embryos migrate and space out day 7 to 10Depending on zoo-technical and/or selected production schemes per the preference of the producer,lactation days/weaning timing is variable but most w

5、ill work between 21 to 28 days.On average a 21 day oestrous cycle calendar.平均有21天的发情周期。(LH)luteinizing hormone surge (heat)oestrus,ovulation LH峰值，峰值，排卵排卵First day that heat is observed is usually designated as day 0,thus in total 21 days from day 0 to day 20.观测观测发情发情的第一天通常被指定为第的第一天通常被指定为第0天，因此从第天，因此

6、从第0天到天到第第20天共天共21天。天。Oestrus(heat)usually lasts 24 to 72 hours.发情通常持续发情通常持续24至至72小时。小时。Ovulation normally occurs towards the end of oestrus(heat),at which time the follicles release their ova(eggs).排卵通常发生在发情结束时，此时卵泡释放卵子。排卵通常发生在发情结束时，此时卵泡释放卵子。Oestrus cycle of the sowOestrus cycle of the sow母猪的发情周期母猪的