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Please use this identifier to cite or link to this item: http://hdl.handle.net/1813/23166
Title: Outbreak when it shouldn't happen: coccidiosis in heifers
Authors: Gray, Julia
Keywords: Cattle -- Infections -- Epidemiology -- Case studies
Issue Date: 30-Mar-2011
Series/Report no.: Senior seminar paper
Seminar SF610.1 2011
Abstract: A pen of approximately 50 conventionally raised Holstein heifers between 230 and 270 days old presented for sudden morbidity and mortality of unknown origin. A diagnosis of coccidiosis was made based on history, physical examination, and fecal results. Disease occurred despite prophylactic treatment with the coccidiostat Rumensin (monensin) at a target dose of 200 mg/head/day. Clinical signs resolved and fecal oocyst counts decreased after sick animals were treated with Corid (amprolium) and the Rumensin (monensin) dose was increased to 300 mg/head/day. Affected animals continued to show signs of immune compromise following the outbreak but no other animals in the barn were affected.
URI: http://hdl.handle.net/1813/23166
Appears in Collections:Senior Seminars

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