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1 September 2008 A Persistent Outbreak of Ulcerative Enteritis in Bobwhite Quail (Colinus virginianus)
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Abstract

Ulcerative enteritis is a disease that typically responds well to medication. An outbreak of ulcerative enteritis that was persistent and unresponsive to treatment is described. The outbreak started in semimature birds and progressively spread to younger birds. Confounding factors leading to this persistence were a significant coccidosis problem, a feed mixing error, and suspected antibiotic resistance. Although Clostridium colinum was never isolated, a bacitracin-resistant Clostridium perfringens was cultured from affected birds. Only the combined treatment of the flocks with an anticoccidial and tylosin was effective in controlling clinical disease. Numerous other management and treatment strategies were unsuccessful in lowering the severe mortality.

Reporte de Caso—Un brote persistente de enteritis ulcerativa en codornices Virginianas (Colinus virginianus).

La enteritis ulcerativa es una enfermedad que típicamente responde bien a la medicación. Se describe un brote de enteritis ulcerativa que fue persistente y no respondió al tratamiento. El brote se inició en aves casi adultas y se diseminó a las aves jóvenes. Los factores concomitantes que condujeron a la persistencia fueron un problema significante de coccidiosis, un error en la mezcla del alimento y la posible resistencia al antibiótico. Aunque el Clostridium colinum no se aisló, una cepa de Clostridium perfringens resistente a la bacitracina fue cultivada a partir de las aves afectadas. Solamente el tratamiento combinado de los lotes con un anticoccidiano y con tilosina fue efectivo para controlar la enfermedad. Numerosas otras estrategias de manejo y tratamiento no tuvieron éxito en disminuir la alta mortalidad.

Abbreviations: BMD = bacitracin methylene disalicytate; CAHFS = California Animal Health and Food Safety; UE = ulcerative enteritis

Daniel Beltran-Alcrudo, Carol Cardona, Linda McLellan, Nancy Reimers, and Bruce Charlton "A Persistent Outbreak of Ulcerative Enteritis in Bobwhite Quail (Colinus virginianus)," Avian Diseases 52(3), 531-536, (1 September 2008). https://doi.org/10.1637/8195-121307-Case
Received: 14 December 2007; Accepted: 1 March 2008; Published: 1 September 2008
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