１９９７～１９９８年对莱阳市农田害鼠发生规律的研究表明：①主要鼠种有５种，黑线仓鼠为优势种；②活动高峰时间，每年大仓鼠为４月和８～１１月，黑线仓鼠为８～１０月，黑线姬鼠为５～７月和９～１０月；③以小麦、玉米、地瓜、花生４种食料等量饲喂褐家鼠时，地瓜被食量最大，占３８．１％。单独饲喂时也以地瓜被食量最大，每只日食２４．２ｇ。 From 1997 to 1998, the study on the occurrence of farm animals in Laiyang City showed that: (1) There are 5 major mouse species and black line hamsters are the dominant species; (2) During the rush hour, the annual hamsters are April and August to November, Hamster was from August to October and Apodemus agrarius was from May to July and from September to October. ③ When Rattus norvegicus was fed in the same amount of wheat, corn, sweet potato and peanut, the sweet potato consumed the largest amount, accounting for 38 .1%. When fed separately, sweet potatoes were also consumed the largest amount, 24.2g per eclipse.