| 摘要: |
| 公绵羊血浆睾酮(T)水平在8～12月极显著地高于1～7月(P<0. 01);平均射精量和精子活率在9～3月均显著地高于4～8月(P<0. 01);精子畸形率和精子数在9～1月与2～8月有极显著差异(P<0. 01)。血浆中锌、铜、锰水平在配种季节8～1月明显地高于非配种季节的6～7月(P<0. 01),并与配种季节开始后T水平的升高和精液品质改善具有明显的相关性(r= 0. 732,P<0. 01;r= 0. 7824,P<0. 01)。 |
| 关键词: 公绵羊，血浆，精子，精液品质，微量元素 |
| DOI： |
| 分类号:S826.1 |
| 基金项目: |
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| Seasonal Changes of Testosterone,Seminal Quality and Minerals in Ram |
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| Abstract: |
| The level of plasma testosterone was significantly higher in Aug.～Dec.
than that in Jan.～July (P< 0. 01) in ram. The average ejaculate volume and sperm
motility were higher in Sept.～Mar. than those in Apr.～Aug. (P<0. 01), respectively.
The differences were significant between Sept.～Jan. and Feb.～Aug. (P< 0. 01) for
the percentages of abnormal sperm and the sperm number per ejaculation, respectively.
The concentration of plasma zinc was lower in June～July than that in other months (P
< 0. 01). The concentration of plasma copper in Apr.～Sept. was lower than that in
Oct.～Mar. The lowest level of plasma iron was found in July and the highest in Dec.
Plasma manganese level was higher in Aug.～Nov. than that in Feb.～July
(P<0. 01).The peak level of plasma selenium was found in Aug. The results suggested that concentrations of plasma zinc, copper and manganese were significantly higher in
Aug.～Jan. than those in June～July (P< 0. 01),which were highly associated with
fluctuation of plasma testosterone level and changes of seminal quality (r= 0. 7732,P<0. 01;r= 0. 7824,P<0. 01). |
| Key words: ram,plasma,sperm,seminal quelity,trace mineral, |
