Dryden M W, Long G R, Gaafar S M
Department of Veterinary Pathobiology, School of Veterinary Medicine, Purdue University, West Lafayette, IN 47907.
J Am Vet Med Assoc. 1989 Dec 15;195(12):1717-8.
Ultrasonic flea collars marketed by 2 companies were evaluated for their ability to reduce flea numbers on cats with experimentally induced flea (Ctenocephalides felis) infestations. The sound output of the collars was evaluated both before and after use to ensure that the collars were functional. Each brand was evaluated on 5 cats for a 7-day period. Collars generated peak frequencies of 40 kHz and 80 to 92 dB sound pressure level at 10 cm. An average of 98.6 and 97.4% of the fleas were still on the cats after treatment and control periods, respectively. The ultrasonic flea collars were ineffective in reducing flea numbers on these cats.
对两家公司销售的超声波跳蚤项圈进行了评估，以确定其在减少实验性感染跳蚤（猫栉首蚤）的猫身上跳蚤数量方面的能力。在使用前后对项圈的声音输出进行了评估，以确保项圈功能正常。每个品牌在5只猫身上进行了为期7天的评估。项圈在10厘米处产生的峰值频率为40千赫，声压级为80至92分贝。在治疗期和对照期后，分别平均有98.6%和97.4%的跳蚤仍在猫身上。超声波跳蚤项圈在减少这些猫身上的跳蚤数量方面无效。
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