Donovan B T
J Reprod Fertil. 1986 Jan;76(1):491-7. doi: 10.1530/jrf.0.0760491.
Information concerning the weight at the onset of a period of oestrus, the timing of oestrus, the age at first oestrus and the lighting conditions was collected from the records of 1364 ferrets and reviewed for evidence indicating that the animals became sexually mature around a particular, critical, weight. None was found, but the results suggest that there is a minimum weight, around 420 g, below which oestrus does not occur.
从1364只雪貂的记录中收集了有关发情期开始时的体重、发情时间、首次发情年龄和光照条件的信息，并进行了审查，以寻找表明这些动物在特定的临界体重左右达到性成熟的证据。未发现此类证据，但结果表明存在一个最低体重，约420克，低于这个体重就不会出现发情。
