Perdrizet J A, King J M
J Am Vet Med Assoc. 1986 May 1;188(9):1063-4.
Trichuriasis caused by Trichuris discolor was diagnosed in a 19-month-old Holstein heifer examined because of emaciation, diarrhea, recumbency, and oral ulceration. The heifer's problem was representative of a herd problem involving pastured replacement heifers. Euthanasia was elected due to the heifer's moribund state and poor prognosis. Gross necropsy revealed subcutaneous edema and diffuse edema of the colon, with hundreds of adult Trichuris discolor in the cecum and colon. Histologic examination revealed multifocal subacute necrotizing colitis, with many adult Trichuris discolor embedded in the mucosa. Treatment instituted on the farm consisted of levamisole hydrochloride at a dosage of 6 mg/kg of body weight. Favorable response was documented by clinical improvement and elimination of fecal shedding of trichurid eggs.
一头19个月大的荷斯坦小母牛因消瘦、腹泻、卧地不起和口腔溃疡接受检查，被诊断为感染了变色毛首线虫引起的鞭虫病。这头小母牛的问题代表了一个涉及放牧后备小母牛的牛群问题。由于这头小母牛处于濒死状态且预后不良，所以选择实施安乐死。大体尸检显示皮下水肿和结肠弥漫性水肿，盲肠和结肠中有数百条成年变色毛首线虫。组织学检查显示多灶性亚急性坏死性结肠炎，许多成年变色毛首线虫嵌入黏膜。农场采取的治疗措施是按6毫克/千克体重的剂量使用盐酸左旋咪唑。临床症状改善以及粪便中不再排鞭虫卵证明治疗效果良好。
