Intoxicación con monensina en un feedlot de búfalos de Argentina

E. N. García; M. E. Pistán; W. J. Lértora; G. E. Mastrantonio; L. A. Cholich

doi:10.30972/vet.3114616

Authors

E. N. García Universidad Nacional del Nordeste. Facultad de Ciencias Veterinarias.
M. E. Pistán Universidad Nacional del Nordeste. Facultad de Ciencias Veterinarias.
W. J. Lértora Universidad Nacional del Nordeste. Facultad de Ciencias Veterinarias.
G. E. Mastrantonio Universidad Nacional de la Plata. Facultad de Ciencias Exactas. Consejo Nacional de Investigaciones Científicas. Subsecretaría de Ciencia y Técnica.
L. A. Cholich Universidad Nacional del Nordeste. Facultad de Ciencias Veterinarias. Consejo Nacional de Investigaciones Científicas. Subsecretaría de Ciencia y Técnica.

DOI:

https://doi.org/10.30972/vet.3114616

Keywords:

Buffaloes, cardiomyopathy, myotoxicosis, monensin, toxicity

Abstract

The aim of this paper was to describe a case of accidental monensin poisoning of feedlot domestic buffalo (Bubalus bubalis) in northeastern Argentina. Clinical signs included anxiety facie with orthopneic position, teeth grinding, diarrhea, muscular weakness, depression and recumbency. In monensin intoxicated animals, a significant increase of creatine phosphokinase and aspartate aminotransferase was observed. At postmortem examination, buffaloes consistently had pale areas that were irregularly distributed in cardiac and skeletal muscles, hydrothorax, congestion and oedema of the lung. Dege-neration and necrosis of the myocardium and skeletal muscle was observed by histological examination. Feed analysis revealed toxic levels of monensin; therefore, ionophore toxicosis was diagnosed. Accordingly, it is required great caution when feeding buffaloes with monensin used as a feed additive.

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