高原鼠兔的季节性繁殖
文献类型：期刊论文
| 作者 | 李子巍 ; 孙儒泳 ; 杜继曾 |
| 刊名 | 兽类学报
 |
| 出版日期 | 1998 |
| 卷号 | 18期号:1页码:42 |
| 关键词 | Plateau pika (Ochotona curzoniae) Reproduction |
| 合作状况 | 国内 |
| 中文摘要 | A nnual changes of the rep roduct ive act ivity in adult male p lateau p ika (Ochotona curzoniae) , a small endemic mammal in Q inghai2T ibet P lateau, w ere invest igated from J anuary to December, 1991. A ll of the animals w ere k illed and decap itated during the nigh t (23:00～ 24:00) and the p lasma, p ineal glands, testes ep ididym is, sem inal vesicles, deferent ducts were co llected and used for biochemical, and histo logical studies. Significant changes associated with seasonal cycles were found. (1) In February～ early April, the restoration phase, the weights of testes, epididym ides and deferent ducts were increased; the process of sperm atogenesis was strengthened and testo sterone level in plasma was increased, but the pineal weight and its melatonin content were decreased. (2) During the middle of April～ late May, the sexually active phase, a significant elevation of gonadal activity was observed. In this period, gonadalw eights were increased, spermatogenesis was completed, pineal weights were decreased and melatonin contents were fluctuated at alow level. These results suggested the increasing in sexual activity as well as in the ability of testo sterone secretion. (3) A striking reduction of test icular activity appears in June～A ugust. In this inhibition phase, gonada lweight, process of sperm atogenesis, plasma testo sterone level were decreased while the pineal weight and pineal melatonin content were increased. (4) During Sep tember～ J anuary, the sexually quiescent phase, declining in weights of testes and epididymides, arrest of spermatogenesis, decreasing of plasma testo sterone concent ration, fluctuating in pineal weights and increasing in pinealmelatonin level were observed. Our findings indicated that the male pikas under natural conditions exhibited an annual rep roductive cycle. A possible relationship between pineal activity and reproductive function was also suggested. |
| 学科主题 | 动物学 |
| 收录类别 | CSCD |
| 语种 | 英语 |
| CSCD记录号 | CSCD:460523 |
| 公开日期 | 2009-11-27 |
| 源URL | [http://ir.nwipb.ac.cn/handle/363003/1056]  |
| 专题 | 西北高原生物研究所_中国科学院西北高原生物研究所 |
| 推荐引用方式 GB/T 7714 | 李子巍,孙儒泳,杜继曾. 高原鼠兔的季节性繁殖[J]. 兽类学报,1998,18(1):42. |
| APA | 李子巍,孙儒泳,&杜继曾.(1998).高原鼠兔的季节性繁殖.兽类学报,18(1),42. |
| MLA | 李子巍,et al."高原鼠兔的季节性繁殖".兽类学报 18.1(1998):42. |
入库方式： OAI收割
来源：西北高原生物研究所
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