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ARS Home » Pacific West Area » Logan, Utah » Poisonous Plant Research » Research » Publications at this Location » Publication #331050

Research Project: Understanding and Mitigating the Adverse Effects of Poisonous Plants on Livestock Production Systems

Location: Poisonous Plant Research

Title: Determination of toxicity in rabbits and corresponding detection of monofluoroacetate in four Palicourea (Rubiaceae) species from the Amazonas state, Brazil

Author
item CARVALHO, FABRICIO - Federal University Of Campina Grande
item Cook, Daniel
item Lee, Stephen
item TAYLOR, CHARLOTTE - Missouri Botanical Garden
item OLIVEIRA, JEFFERSON - Federal University Of Amazonas (UFAM)
item RIET-CORREA, FRANKLIN - National Agricultural Research Institute(INIA)

Submitted to: Toxicon
Publication Type: Peer Reviewed Journal
Publication Acceptance Date: 11/11/2015
Publication Date: 1/1/2016
Publication URL: http://handle.nal.usda.gov/10113/62812
Citation: Carvalho, F.K., Cook, D., Lee, S.T., Taylor, C.M., Oliveira, J.B., Riet-Correa, F. 2016. Determination of toxicity in rabbits and corresponding detection of monofluoroacetate in four Palicourea (Rubiaceae) species from the Amazonas state, Brazil. Toxicon. 109:42-44.

Interpretive Summary: Monofluoroacetate (MFA)-containing plants in Brazil cause sudden death syndrome precipitated by exercise in livestock, which is characterized by loss of balance, ataxia, labored breathing, muscle tremors, and recumbence leading to death. Four species of Palicourea collected at six farms were tested for the presence of MFA and their toxicity to rabbits. Palicourea longiflora and Palicourea barraensis contained MFA and caused sudden death in the rabbits. Palicourea croceoides and Palicourea nitidella did not contain MFA and were not toxic to rabbits. P. longiflora and P. barraensis were collected at three farms with a history of sudden death in their cattle. This is the first report of toxicity in regard to these two species.

Technical Abstract: Numerous monofluoroacetate (MFA)-containing plants in Brazil cause sudden death syndrome precipitated by exercise in livestock, which is characterized by loss of balance, ataxia, labored breathing, muscle tremors, and recumbence leading to death. Four species of Palicourea collected at six farms were tested for the presence of MFA and their toxicity to rabbits. Palicourea longiflora and Palicourea barraensis contained MFA and caused sudden death in the rabbits. Palicourea croceoides and Palicourea nitidella did not contain MFA and were not toxic to rabbits. P. longiflora and P. barraensis were collected at three farms with a history of sudden death in their cattle. This is the first report of toxicity in regard to these two species.