Causes of death in beef cattle in southern
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| Authors: | Francili A Molossi Bianca S de Cecco Camila B Pohl Rogrio B Borges Luciana Sonne Saulo P Pavarini David Driemeier |
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| Institution: | Faculdade de Veterinária, Setor de Patologia Veterinária, Universidade Federal do Rio Grande do Sul, Rio Grande do Sul, Brazil;Hospital de Clínicas de Porto Alegre, Unidade de Bioestatística, Grupo de Pesquisa e Pós-graduação, Porto Alegre, RS, Brazil |
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| Abstract: | We determined the prevalence of diseases and pathogens associated with mortality in beef cattle in the State of Rio Grande do Sul, Brazil, based on pathology laboratory submissions. Postmortem examinations were conducted on 1,277 beef cattle that died between 2008 and 2018. Information regarding age, time of the year, breed, and regional location were analyzed statistically. Most cattle were from the surrounding region of Porto Alegre, and 78.7% of the analyzed cases had diagnostic value. The diagnostic category with most cases was infectious and/or parasitic diseases (60%), followed by toxic and toxicoinfectious (25%). Most cases occurred in the fall. Major disease conditions identified included hemoprotozoal infection (18.2%), rabies (8.2%), and plant intoxications by Senecio spp. (8.5%) and Pteridium arachnoideum (4.6%). Hemoprotozoal infection occurred at a higher frequency in young cattle, mainly in animals up to 1 y old. Intoxication by Senecio spp. was more frequent in cattle 2–3 y old. |
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| Keywords: | bovine epidemiology hemoprotozoal infection pathology plant intoxication pneumonia southern Brazil |
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