kisspeptin、GnRH和hCG激素处理对非繁殖季节和繁殖季节塞浦路斯公山羊精液特性的影响

M. AL-Ameri, T. Abdulkareem, A. Taha
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引用次数: 4

摘要

本研究旨在确定kisspeptin、GnRH和hCG激素治疗对非繁殖期塞浦路斯公山羊血浆睾酮浓度和精液特征的影响,并与繁殖期进行比较。本研究于2012年11月15日至2013年12月31日在巴格达阿布格莱布市(纬度33˚20' N)农业部农业研究局反刍动物研究站进行。共20只2岁的塞浦路斯公山羊,平均体重55公斤。在非繁殖期,雄鹿被随机分为5组(每组4雄鹿)。第一组(A1)作为对照组,静脉注射生理盐水,第二组(A2)和第三组(A3)分别静脉注射Kisspeptin-10 4和8µg / kg体重。第四组(A4)和第五组(A5)分别注射hCG (250 IU / buck)和GnRH(20µg / buck)。治疗后20、30、40和50 min, A5、A2和A3组血浆睾酮浓度均显著高于对照A1 (P≤0.01和P≤0.05)。非繁殖期,A5、A4、A2和A3的质量活力和个体活力极显著(P≤0.01)高于对照。综上所述,Kisspeptin-10、GnRH和hCG可以通过提高雄鹿非繁殖期血浆睾酮浓度来刺激雄鹿非繁殖期静止的下丘脑-垂体-性腺轴,从而改善雄鹿非繁殖期的某些精液特征。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
The effect of hormonal treatment with kisspeptin, GnRH and hCG on semen characteristics in buck Cyprus goats during non-breeding season as compared with breeding season
The current study aimed to determine the effect of hormonal treatment with kisspeptin, GnRH and hCG on plasma testosterone concentration and semen characteristics in buck Cyprus goats during non-breeding season as compared with breeding season. This study was executed at the Ruminant Researches Station pertaining to the Directorate of Agricultural Researches, Ministry of Agriculture, Abu-Ghraib, Baghdad (latitude 33˚20' N) for the period from November 15th, 2012 to December 〖31〗^st 2013. A total of 20 buck Cyprus goats 2 years old and averages 55 kg body weight. During non-breeding season bucks were randomly divided into five equal groups (4 bucks / group). The first group (A1) was regarded as a control group, i.m injected with normal saline, whereas, the second (A2) and third (A3) groups were i.v injected with 4 and 8 µg / kg body weight of Kisspeptin-10 respectively. The fourth (A4) and fifth (A5) groups were i.m injected with hCG (250 IU / buck) and GnRH (20 µg / buck) respectively. Plasma testosterone concentrations were significantly (P≤ 0.01 and P≤ 0.05) increased at 20, 30, 40 and 50 min post-treatment in A5, A2 and A3 groups as compared with control A1. Mass motility and individual motility were significantly (P≤ 0.01) in A5, A4, A2 and A3 as compared with control during non-breeding season. In conclusion, our results show that Kisspeptin-10, GnRH and hCG can stimulate the quiescent hypothalamic–pituitary–gonadal axis of bucks during non-breeding season by increasing plasma testosterone concentration post treatment that leads improving some semen characteristics during non-breeding season.
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