紫貂(Martes zibellina)妊娠期血清孕酮水平的变化

STUDIES ON CHANGES OF SERUM PROGESTERONE LEVEL OF SABLES IN THE PREGNANCY PERIOD

用放射免疫法测定受配雌紫貂妊娠期间(9月至翌年2月)的血清孕酮水平。结果表明:其中产仔雌貂在9月至翌年1 月的血清孕酮呈现相对稳定的较高水平(平均1.45±0.23毫微克/毫升),2月下旬急剧升高至本试验的最高值(平均3.72±1.67毫微克/毫升,P<0.01),空怀雌貂在妊娠前期内的血清孕酮水平均为0.70±0.14毫微克/毫升的低水平,与产仔组相比,差异显著或极显著。作者认为血清孕酮水平的变化与日照和胚泡活动密切相关。

The serum progesterone level of sables in pregnancy were determined by radioim-munoassay (RIA) from September 1986 to February 1987. The results showed that the serum progesterone of female sables of calving keeped a stable relatively more high level from September 1986 to January 1987 (average 1.45±0.23 ng/ml) , and increased sharply to peak value in last ten days of February 1987 (average 3.72±1.67 ng/ml, p <0.01). The progesterone of femala sebles of barren were in low level during the pregnancy period (average 0.70±0.14. ng/ml). There was a significant or the most significant difference of the progesterone between the female sables of calving and barren. Therefore, we considered that the change of serum progesterone level were a close relation to activity of embryo, and photoperiod.