Santarém V A, Farias M R, Tostes R A
Hospital Veterinário da Universidade do Oeste Paulista, Rodovia Raposo Tavares km 572, Bairro Limoeiro, 19067-150 Presidente Prudente, São Paulo, Brazil.
Vet Parasitol. 2005 Jul 15;131(1-2):169-71. doi: 10.1016/j.vetpar.2005.03.029.
An investigation was conducted of mange in five Large White adult sows refractory to pyrethroid treatment (cypermethrin 15%). The most important clinical signs consisted of erythema, hyperkeratosis, alopecic macules, micaceous scaling, follicular pluging, and numerous comedones, especially on the facial region. Skin samples were scraped and punched. Elongate mites were found that were classified as Demodex sp., according to the morphological and histopathological characteristics. The protein, vitamin, and mineral levels contained in the rations were considered to be lower than those recommended to attend the requirements of fattening pigs. Adjustment of the rations was adopted, and the treatment of animals with ivermectin premix (450g/tonne of food) daily orally for a further 7 days was prescribed. The success of treatment was observed 15 days after adoption of these measures, when the beginning of remission of signs was observed. No mites were found on scrapings or biopsy punches after the treatment of the sows.
对5头对拟除虫菊酯治疗（15%氯氰菊酯）无效的大白成年母猪的疥螨病进行了调查。最重要的临床症状包括红斑、角化过度、脱毛斑、云母状脱屑、毛囊堵塞和大量粉刺，尤其是在面部区域。采集了皮肤刮片和打孔样本。根据形态学和组织病理学特征，发现了被归类为蠕形螨属的细长螨虫。日粮中的蛋白质、维生素和矿物质水平被认为低于育肥猪所需的推荐水平。调整了日粮，并规定每天口服伊维菌素预混剂（450克/吨饲料）对动物进行进一步7天的治疗。采取这些措施15天后观察到治疗成功，此时观察到症状开始缓解。母猪治疗后，在刮片或活检打孔样本中未发现螨虫。
