巴西奶牛犊严重感染猫蚤。

Severe cat flea infestation of dairy calves in Brazil.

作者信息

Araújo F R, Silva M P, Lopes A A, Ribeiro O C, Pires P P, Carvalho C M, Balbuena C B, Villas A A, Ramos J K

机构信息

Universidade para o Desenvolvimento do Estado e da Região do Pantanal, Campo Grande MS, Brazil. www.flabio.zaz.com.br.

出版信息

Vet Parasitol. 1998 Dec 15;80(1):83-6. doi: 10.1016/s0304-4017(98)00181-2.

DOI:10.1016/s0304-4017(98)00181-2

PMID:9877075

Abstract

An investigation was conducted into a severe flea infestation on dairy calves. Inspection of the dairy revealed a high infestation of Ctenocephalides felis felis on four calves and thousands of fleas in the stable where cows and calves were brought in for milking. A 3-month-old female calf was highly infested with fleas. The animal showed an evident lethargy, weight loss, as well as pale mucous membranes and dehydration. Hematological analysis revealed anemia, with 10% packed cell volume and a 1.72 x 10(6) microl(-1) erythrocyte count. Blood transfusions were performed and the flea infestation was controlled with 1% fipronil pour-on (1 ml/10 kg). The farmer was advised to treat the other calves with fipronil, remove the manure from the stable and spread 1% propoxur powder (100 g/m2) onto the floor of the stable.

摘要

对奶牛犊严重跳蚤感染情况展开了调查。对奶牛场的检查发现，四头犊牛身上感染了大量猫栉首蚤指名亚种，并且在奶牛和犊牛进入挤奶的牛舍中有数千只跳蚤。一头3月龄的雌性犊牛跳蚤感染严重。该动物表现出明显的嗜睡、体重减轻，以及黏膜苍白和脱水症状。血液学分析显示贫血，血细胞压积为10%，红细胞计数为1.72×10⁶/微升。进行了输血治疗，并使用1%的氟虫腈浇泼剂（1毫升/10千克）控制跳蚤感染。建议养殖户用氟虫腈治疗其他犊牛，清除牛舍中的粪便，并在牛舍地面撒上1%的残杀威粉剂（100克/平方米）。