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Effect of low dose oxytocin treatment on the pregnancy rate of the dairy

机译：低剂量催产素治疗对奶牛妊娠率的影响

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It is well known that during the natural mating, stimulation of the female genital system by the bull causes oxytocin release from the caudal part of the female pituitary gland and this hormone enhances the sperm transport in the genital tract. During the artificial insemination (A.I), this hormone dose not release perfectly. For determine of the oxytocin effect on the pregnancy rates of the cows, a total 100 cows were chosen in a dairy herd located in a suburb of Tabriz (North-west of Iran). These cows were randomly divided into two groups. In the group A, during the A.I, 30 IU oxytocin (3cc Vetocin) was injected to the cows intramuscularly. In the group of B, 3cc saline was injected intramuscularly to the control cows. After 45 days of A.I, all of the cows were examined by rectal palpation for pregnancy detection. The pregnancy rates were 58% and 54% in the groups of oxytocin treated and control respectively. The difference between two groups did not differ significantly. These results indicated that oxytocin administration during the A.I had not significant effect on the cow's pregnancy rates.ghts
机译：众所周知，在自然交配过程中，公牛对雌性生殖系统的刺激会导致催产素从雌性垂体的尾部释放出来，并且这种激素增强了精子在生殖道中的运输。在人工授精（A.I）期间，这种激素的释放并不完美。为了确定催产素对母牛怀孕率的影响，从位于大不里士郊区（伊朗西北部）的奶牛场中选出了总共100头母牛。这些母牛被随机分为两组。在A组中，在A.I期间，将30 IU催产素（3cc Vetocin）肌肉注射到母牛身上。在B组中，将3cc盐水肌肉内注射给对照牛。 A.I 45天后，通过直肠触诊检查所有母牛以检测怀孕。催产素治疗组和对照组的妊娠率分别为58％和54％。两组之间的差异没有显着差异。这些结果表明在A.I期间服用催产素对母牛的怀孕率没有显着影响。

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