TNNI3 and serum lipopolysaccharide activity: Thus, the objectives of this study were the following: (a) to establish blood reference ranges for cTnI in healthy donkeys; (b) to evaluate the effect of acute experimentally-induced endotoxemia on blood cTnI in donkeys; (c) to study the effect of endotoxemia on blood pressure and cardiac function, and (d) to assess if meloxicam administration can prevent the effects of experimentally induced endotoxemia on cTnI, blood pressure and cardiac function in donkeys.