| 摘要: |
| 应用放射免疫分析法(RIA)测定了关中奶山羊公羊(n=11)全年精液中睾酮(T)、17β-雌二醇(17β-E2)、孕酮(p4)和皮质醇(F)水平。T水平在8～11月份平均为9.35ng/ml,12～7月份平均为2.13ng/ml(p<0.001)。17β-E2浓度在6,10月份极显著地高于其他月份(p<0.01);P4含量在4～8月份极显著地高于9～8月份(P<0.01);F浓度在8～12月份平均为11.04ng/ml,1～7月份平均为8.12ng/ml(p<0.001)。 |
| 关键词: 精液,奶山羊,睾酮,17β-雌二醇,孕酮,皮质醇 |
| DOI： |
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| SEASONAL CHANGES IN SEMEN FOUR HORMONESIN GUANZHONG DAIRY GOATS |
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Li Qingwang Wang JianchenZhang Yue Li ZhenZhong,Li Qingwang Wang JianchenZhang Yue Li ZhenZhong,Li Qingwang Wang JianchenZhang Yue Li ZhenZhong
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| Abstract: |
| The seasonal changes in semen testosterone,estradiol-17β,progesterone and cortisol levels were determined by radioimmunossay in Guanzhong male dairy goats.The level of testosterone was 9,35ng/ml from August to November and 2.13ng/ml from February to July (p<0.001).Estradiol-17β concentration was higher in June and October than in other months (p<0.001).Progesterone concentration was higher from April to August than from September to March (p<0.001).Cortisol level was 11.04ng/ml from August to December and 8.12ng/ml from January to July(p<0.001). |
| Key words: semen,dairy goats,testosterone,estradiol-17β,progesterone,cortisol |
