Delville Y, Sulon J, Balthazart J
Horm Behav. 1986 Mar;20(1):13-33. doi: 10.1016/0018-506x(86)90026-7.
A series of experiments was performed to study the changes during the day of female receptivity in Japanese quail. In each experiment, the frequency of squatting and the percentage of male approaches which were followed by squatting increased at the end of the day, approximately 11 to 13 hr after lights on (in a photoperiod of 16L:8D). In some cases this increased receptivity was associated with a significant decrease of the long-avoid frequency. Analyses are presented which demonstrate that the increased receptivity at the end of the day is not directly caused by the oviposition and does not result directly from changes in the behavior of the male stimuli. This is strongly supported by the observation that the increase in receptivity was observed at the same time after lights on (but different clock times) in two groups of females which were raised in two different photoperiods shifted by 6 hr and tested with the same group of males raised in one of the two photoperiods. The increase in receptivity coincides with an increase in plasma estradiol and progesterone. Considering that this behavior is suppressed by ovariectomy, it is argued that the daily changes in receptivity could be controlled by the hormonal changes associated with the ovulatory cycle.
进行了一系列实验来研究日本鹌鹑雌性接受性在一天中的变化。在每个实验中，蹲伏频率以及随后蹲伏的雄性接近百分比在一天结束时增加，大约在光照开启后11至13小时（在16L:8D的光周期中）。在某些情况下，这种接受性增加与长时间回避频率的显著降低有关。所呈现的分析表明，一天结束时接受性的增加不是由产卵直接引起的，也不是直接由雄性刺激行为的变化导致的。这一观点得到了有力支持，即观察到在光照开启后相同时间（但不同的时钟时间），两组在相差6小时的不同光周期中饲养的雌性鹌鹑，与在其中一个光周期中饲养的同一组雄性鹌鹑进行测试时，接受性都有所增加。接受性的增加与血浆雌二醇和孕酮的增加同时出现。考虑到这种行为会被卵巢切除所抑制，有人认为接受性的每日变化可能受与排卵周期相关的激素变化控制。
