PATTERN OF ELECTRICAL-ACTIVITY OF THE OVINE UTERUS AND CERVIX FROM MATING TO PARTURITION
PATTERN OF ELECTRICAL-ACTIVITY OF THE OVINE UTERUS AND CERVIX FROM MATING TO PARTURITION
复制标题
DOI：
10.1530/jrf.0.0720143
复制
发表时间：
1984-01-01
期刊：
影响因子：
--
通讯作者：
RUCKEBUSCH, Y
中科院分区：
文献类型：
--
作者：
GARCIAVILLAR, R;TOUTAIN, PL;RUCKEBUSCH, Y
在一组母羊的几个发情周期、配对和整个妊娠过程中，记录了子宫、大弯和小弯以及宫颈的电活动。在周期绵羊中，所有电极位置在围排卵期都是活跃的，但在黄体期，只有宫颈和小曲持续有规律的活动，即持续6-8分钟的发作。交配未能破坏6只母羊中的5只母羊的发情活动模式。在随后的妊娠期间，4只母羊的活动包括妊娠角(S)(较大的弯曲)和宫颈(1只母羊的较小弯曲)的周期性活动发作。根据妊娠角大弯的活动可分为三个阶段(S)。第一阶段相当于角的静止，从第5天(第0天=交配)到第41天左右。第二阶段是子宫突然开始有规律的活动；频率迅速增加，在第49天左右达到最大值，之后频率逐渐下降，直到第66天左右。第3期生殖道活动稳定，一直持续到围产期。宫颈活动和小弯活动与常规活动发作的发展几乎相似，只是时间上的微小差异。
The electrical activity of the uterus, greater curvature and lesser curvature, and of the cervix were recorded throughout several estrous cycles, matings and the entire course of pregnancy in a set of ewes. In cyclic ewes, all electrode sites were active during the periovulatory period, but during the luteal phase only the cervix and lesser curvature continued to present regular activity, i.e., episodes of 6-8 min duration. Matings failed to disrupt the estrous activity pattern in 5 of 6 ewes. During the subsequent pregnancy in 4 ewes, activity, when present, consisted of the cyclic occurrence of regular activity episodes in the gravid horn(s) (greater curvature) and in the cervix (and lesser curvature in 1 ewe). Three phases were recognized on the basis of the activity of the greater curvature of the gravid horn(s). The 1st phase corresponded to quiescence of the horn from day 5 (day 0 = mating) to about day 41. The 2nd phase was marked by the sudden onset of regular activity of the uterus; frequency rapidly increased and maximal values were reached around day 49, after which frequency progressively decreased until around day 66. The 3rd phase was characterized by a steady state in genital tract activity until the peripartum period. The cervix and lesser curvature activity followed an almost similar development of regular activity episodes with only slight time differences.