雌性小熊猫血清类固醇激素水平的变化  

Serum steroid hormone profiles in female red panda

作　　者：修云芳 邵良平[2] 徐素慧 王德春[3] 陈婷 翁妮娜 陈玉村 

机构地区：[1]福州大熊猫研究中心,福建福州350001 [2]福建农林大学动物科学学院,福建福州350002 [3]南京军区福州总医院,福建福州350025 [4]福建农产品质量安全检验检测中心,福建福州350001

出　　处：《福建农林大学学报（自然科学版）》2009年第1期55-60,共6页Journal of Fujian Agriculture and Forestry University:Natural Science Edition

基　　金：福建省科技厅资助项目(2000Z156)

摘　　要：在5只雌性成体小熊猫发情期和妊娠期内(2005年12月至2006年7月),连续23次采集血清,用放射免疫分析法测定小熊猫繁殖周期血清雌二醇(E2)和孕酮(P)含量的变化.结果表明:(1)雌性小熊猫进入发情期,血清E2含量迅速升高,并多次出现峰值,仅有一个峰值与交配行为一致,发情周期14-48 d,平均(28.26±13.24)d(n=5);在怀孕小熊猫的妊娠期内和未孕小熊猫的黄体期内都出现血清E2峰值.(2)血清P含量的升高出现在怀孕小熊猫的妊娠期和未孕小熊猫的黄体期,P含量在配种后开始升高.可见:(1)小熊猫在发情季节出现多次发情;(2)在妊娠期和黄体期可能仍有卵泡发育;(3)根据血清P含量的变化趋势,未发现福州地区圈养小熊猫胚胎延迟着床的证据.Reproductive characteristics during tile estrous cycle of red panda （Ailurusfulgens） in captivity were reported. Five adult females were selected for this study. With radio-immunoassay, serum concentrations of estradiol and progesterone were assessed 23 times consecutively during estrous and gestation period from December 2005 to July 2006. Results ： Several concentration peaks of estradiol appeared during the estrous, only one peak was associated with mating. The duration of estrous period lasted from 14 days to 48 days, and the average was 28.26 ± 13.24 days （n = 5）. Estradiol concentration peaks also appeared in the pregnant animals and non-pregnant animals （pseudo-pregnant） during their expected gestation period. Serum concentrations of progesterone were ele- vated in 5 animals during their expected gestation period, and were risen soon after mating. Conclusions： Red panda may be polyoestrous during the estrous season. The follicles could be still developing during luteal phases in the pregnant animals and non- pregnant animals. There is no evidence of embryo delayed implantation in red panda in captivity of Fuzhou area according to appearance of serum concentrations of progesterone.

关 键 词：小熊猫 雌二醇 孕酮 发情周期 延迟着床 

分 类 号：S865.31[农业科学—野生动物驯养]