鼷鼠，一种小老鼠。也叫小家鼠。为鼠科中的小型鼠，体长60～90毫米，体重7～20克，尾与体长相当或略短于体长。
实验结果显示，给予锌处理后之肥胖鼷鼠，其体脂肪含量显著增加。
The results indicated that dietary zinc treatment increased body fat deposition in obese mice.
如果一个繁殖季节中白鼬有充足的沟鼠和鼷鼠为主食，它们就会生长良好，且数量会达到猖獗的程度。
With their staple diet of rats and mice in plentiful supply in a season, stoats fed well and their numbers reached plague levels.
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