Marley S E, Hall R D, Corwin R M
Department of Entomology, University of Missouri, Columbia 65211.
Vet Parasitol. 1993 Dec;51(1-2):167-72. doi: 10.1016/0304-4017(93)90210-e.
Late spring treatment of cattle with a single dose of pour-on ivermectin (0.5 mg kg-1 body weight) resulted in reduced horn fly populations for approximately 6 weeks, with percentage efficacy exceeding 80% for at least 26 days post-treatment. Bioassay with house flies of dung from treated cattle demonstrated suppression of fly emergence for 11 days post-treatment. The subsequent increase in horn fly numbers on the treated herd was predicted by a developmental rate equation interpreted by the time of cessation of larval fly inhibition in field dung.
在晚春时节给牛只单剂量浇泼式伊维菌素（0.5毫克/千克体重）进行治疗，可使角蝇数量在约6周内减少，治疗后至少26天的有效率超过80%。对经治疗牛只粪便中的家蝇进行生物测定表明，治疗后11天内蝇的羽化受到抑制。通过根据田间粪便中幼虫蝇抑制停止时间解释的发育速率方程，预测了治疗牛群上角蝇数量随后的增加情况。
