Estimación de pérdidas económicas causadas por Trypanosoma vivax en un rodeo lechero de Argentina
; Larriestra, Alejandro Jose ; Signorini Porchietto, Marcelo Lisandro 
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12/2020
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Universidad Nacional del Nordeste. Facultad de Ciencias Veterinarias
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Revista Veterinaria
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1669-6840
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En Argentina T. vivax fue descrito por primera vez en 2006 afectando ganado de carne dela Provincia de Formosa. Durante el verano/otoño de 2016/2017 se observaron los primerosbrotes en la zona central de la Provincia de Santa Fe, afectando algunos rodeos lecheros. Sedescribe el impacto que este hemoparásito produjo en un establecimiento lechero con 220vacas totales, donde los síntomas principales fueron abortos (n=17), diarrea, mala condicióncorporal, baja o nula producción de leche y muerte de vacas (7,5%). Las pérdidas totalizaron58.802 USD considerando los abortos, muertes de vacas, venta de animales improductivos ygastos por tratamiento específico. Por tratarse de una enfermedad desconocida para la zona,la demora en realizar el diagnóstico exacerbó las pérdidas. El tratamiento de la totalidad delos bovinos adultos con diminazene detuvo el brote, siendo económicamente justificable suaplicación.
In Argentina, bovine trypanosomiasis is caused by Trypanosome vivax. Outbreaks of the disease were first described in beef cattle at the Formosa Province in 2006 and in dairy herds from the central area of Santa Fe Province, during the summer and autumn of 2017. Outbreaks were characterized by diarrhea, decay of body condition, severe drop of milk production, abortions and death. A herd with 220 dairy cows, in which the identification of the disease was belated, reported 17 abortions and 7.5% of deaths. The outbreak was temporarily stopped by treatment of the whole herd with diminazene. The economic impact of the outbreak, considering abortions, treatments, culling of cows and death, achieved US$ 58,802. Early treatment of all cattle would be cost-effective given the severe economic impact caused by the disease when control measures are delayed.
In Argentina, bovine trypanosomiasis is caused by Trypanosome vivax. Outbreaks of the disease were first described in beef cattle at the Formosa Province in 2006 and in dairy herds from the central area of Santa Fe Province, during the summer and autumn of 2017. Outbreaks were characterized by diarrhea, decay of body condition, severe drop of milk production, abortions and death. A herd with 220 dairy cows, in which the identification of the disease was belated, reported 17 abortions and 7.5% of deaths. The outbreak was temporarily stopped by treatment of the whole herd with diminazene. The economic impact of the outbreak, considering abortions, treatments, culling of cows and death, achieved US$ 58,802. Early treatment of all cattle would be cost-effective given the severe economic impact caused by the disease when control measures are delayed.
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