Kruczek M
Department of Mammalian Reproduction, Institute of Zoology, Jagiellonian University, Ingardena 6, 30-060 Kraków, Poland.
Behav Processes. 1998 May;43(2):229-37. doi: 10.1016/s0376-6357(98)00016-3.
Pregnant and nursing bank vole (Clethrionomys glareolus) females were investigated for their ability to recognize their mated male on the basis of chemical cues. In a two-choice test pregnant females showed a strong preference, manifested by higher frequency of sniffs and time spent sniffing, to the odour of a stud male over that of unfamiliar male, but only during the days after insemination and around implantation. As gestation proceeds females exhibited no affinity for either of these two kinds of males. Olfactory bulbectomy abolished a pregnant females preference for her stud male. A lactating female chose the odour of her sexual partner untill the time of weaning of her young. Separation of the female from her pups during the early post partum period shortens the time of memory for the scent of the stud male. The results indicate that bank vole females form olfactory memory to the odour of stud males and its duration depends on physiological state of the females.
对怀孕和哺乳期的棕色田鼠（Clethrionomys glareolus）雌性进行了研究，以考察它们基于化学线索识别与其交配过的雄性的能力。在一项二选一测试中，怀孕的雌性表现出强烈的偏好，表现为对种鼠气味的嗅闻频率更高、嗅闻时间更长，相对于陌生雄性的气味而言，但仅在受精后的几天以及着床前后。随着妊娠的进展，雌性对这两种雄性的气味均无偏好。切除嗅球消除了怀孕雌性对其种鼠的偏好。一只哺乳期的雌性会选择其性伴侣的气味，直到幼崽断奶。产后早期将雌性与其幼崽分开会缩短对种鼠气味的记忆时间。结果表明，棕色田鼠雌性会对种鼠的气味形成嗅觉记忆，其持续时间取决于雌性的生理状态。
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