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Year 2018 - Volume 38, Number 8
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Hemolytic anemia in beef cattle in extensive system farming in Mato Grosso and Rondônia, 38(8):1475-1483
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ABSTRACT.- Rondelli L.A.S., Becker M., Caldeira F.H.B., Ribeiro M., Furlan F.H., Colodel E.M., Pescador C.A. & Antoniassi N.A.B. 2018. [Hemolytic anemia in beef cattle in extensive system farming in Mato Grosso and Rondônia.] Anemia hemolítica em bovinos de corte em sistema de criação extensiva em Mato Grosso e Rondônia. Pesquisa Veterinária Brasileira 38(8):1475-1483. Faculdade de Veterinária, Universidade Federal de Mato Grosso, Av. Fernando Corrêa da Costa 2367, Boa Esperança, Cuiabá, MT 78060-900, Brazil. E-mail: naassi@gmail.com
Cases of hemolytic anemia in beef cattle in na extensive breeding system in Mato Grosso and Rondônia have been monitored since 2008. The affected animals presented weakness, pale or icteric mucosas, blackened urine, prostration and anorexia. The outcome of these cases often is death, principally if the animals are forced to walk. Approximately 429 cattle died in these outbreaks andin some of these, mortality rates ranged from 0.26 to 50%. Research was carried out on the main infectious causes such as leptospirosis, babesiosis, trypanosomiasis, anaplasmosis and bacillary hemoglobinuria, as well as the possible toxic causes reported as etiology of hemolytic anemia in cattle through hematology, blood biochemistry, molecular and histopathological examinations. Any plant ready described in Brazil as cause of hemolytic anemia in animals from livestock interest was observed in thosefarms. Although the etiology of these cases is not yet known, clinical and pathological evidences of the disease suggested that it is caused by a toxic plant of hemolytic action, present in the affected properties, but not yet confirmed experimentally. |
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