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首页> 外文期刊>Animal Reproduction Science >Changes in plasma luteinizing hormone, testosterone and estradiol-17beta levels and semen quality after injections of gonadotropin releasing hormone agonist and human chorionic gonadotropin in three dogs with oligozoospermia and two dogs with azoospe
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Changes in plasma luteinizing hormone, testosterone and estradiol-17beta levels and semen quality after injections of gonadotropin releasing hormone agonist and human chorionic gonadotropin in three dogs with oligozoospermia and two dogs with azoospe

机译：注射促性腺激素释放激素激动剂和人绒毛膜促性腺激素后，三只少精症狗和两只无精子犬的血浆促黄体激素，睾丸激素和雌二醇-17β水平以及精液质量的变化

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A subcutaneous injection of a GnRH agonist (GnRH-A; 1μg per kg body weight) in 3 normal Beagle dogs increased plasma LH and testosterone (T) levels; the LH levels peaked at 30 or 45 min and the T levels at 45 or 60 min after the injection respectively. Two Collie and a Great Dane diagnosed as oligozoospermic, and 2 Shetland sheepdogs diagnosed as azoospermic by evaluation of semen quality were treated with the GnRH agonist at 1μg per kg body weight. Their plasma levels of LH, T and oestradiol-17beta (E2) were assayed before and after the treatment. The semen quality of one of the Collies improved 4 weeks after the treatment. The dog was treated with the GnRH-A again and mated with a bitch 4 days later. The bitch gave birth to 5 puppies. The other dogs, whose semen quality had not improved, were treated with an intramuscular injection of 500 or 1000 IU HCG per animal. Since the semen quality of the other Collie and the Great Dane improved temporarily for 2 and 4 weeks respectively after the HCGtreatment, the former was mated with a bitch 5 days later. The bitch gave birth to a litter of 7 puppies. The hormone treatments had no effect on the azoospermia in the 2 Shetland Sheepdogs. Although the mean plasma LH and T levels in the dogs with oligozoospermia had been low, their LH levels gradually increased after hormone treatment. There were no marked changes in plasma T or E2 levels. The results indicated that the semen quality of dogs with oligozoospermia can be temporarily improved between 2 and 4 weeks after a single injection of GnRH-A or HCG.
机译：在3只正常Beagle犬中皮下注射GnRH激动剂（GnRH-A;每公斤体重1μg）会增加血浆LH和睾丸激素（T）水平;注射后LH水平分别在30或45分钟达到峰值，T水平分别在45或60分钟达到峰值。用GnRH激动剂以每公斤体重1μg的剂量对2名被诊断为少精症的牧羊犬和大丹犬和2条经精液质量诊断为无精子症的设得兰群岛牧羊犬进行处理。在治疗之前和之后测定他们的血浆LH，T和oestradiol-17beta（E2）水平。治疗后4周，其中一只大牧羊犬的精液质量得到改善。再次用GnRH-A治疗狗，并在4天后用母狗交配。母狗生了5只幼犬。精液质量没有改善的其他狗，每只动物肌内注射500或1000 IU HCG。由于HCG处理后，另一只牧羊犬和大丹犬的精液质量分别暂时改善了2周和4周，因此前者在5天后与母犬交配。母狗生下了7只幼仔。激素治疗对两只设得兰群岛牧羊犬的无精症没有影响。尽管少精子症犬的平均血浆LH和T水平较低，但激素治疗后其LH水平逐渐升高。血浆T或E2水平无明显变化。结果表明，单次注射GnRH-A或HCG后，在2至4周内可以暂时改善少精症犬的精液质量。

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