Callaeum (Mascagnia) psilophyllum is found in the same regions than Amorimia (Mascagnia) rigida, a sodium monofluoroacetate containing plant that cause sudden death associated with exercise in ruminants. With the objective to determine the toxicity of C. psilophyllum, leaves of the plant were...

Numerous plant species worldwide including Palicourea marcgravii (Rubiaceae) and Tanaecium bilabiatum (Bignoniaceae) in Brazil cause acute cardiac failure (sudden death) and are known to contain monofluoroacetate (MFA). Other Bignoniaceae species including Fridericia japurensis (Arrabidaea...

An outbreak of sudden death occurred in the Agreste region of Paraíba, Brazil in a herd of 129 cattle in 2000. When the herd was driven from the area, 40 cattle had clinical signs characterized by instability, staggering and lying down or falling. 20 cattle died and the other 20 recovered. Dry M....

Rabbits, guineapigs, rats and mice were used to reproduce the cardiac lesions observed in ruminants in the intoxication by A. glazioviana. Four animals of each species were fed for 4 months with a ration containing 10% dry A. glazioviana. The pellets were made by mixing 700 g of commercial ration,...