| sudden bovine death from mascagnia rigida in northeastern brazil. | one outbreak of sudden death occurred in the agreste region of paraiba, brazil in a herd of 129 cattle. when the herd was driven from the area, 40 cattle had clinical signs characterized by instability, staggering and lying down or falling. twenty cattle died and the other 20 recovered. dry mascagnia rigida collected in the paddockwas administrated to 3 groups of 2 rabbits each at doses of 1.25, 2.5 or 5 g/kg bw. all rabbits ingesting 2.5 and 5 g/kg bw died acutely between 3 h 25 min and 16h 15 ... | 2002 | 12361113 |