POTENCIAL TÓXICO DA PLANTA Poincianella pyramidalis COMO CAUSA DE ABORTOS E MALFORMAÇÕES EM CAPRINOS E RATOS.

Abstract

BEZERRA, Isadora Thalita Filgueira, Federal University of Paraiba, julye of 2015. POTENCIAL TOXICO DA PLANTA Poincianella pyramidalis COMO CAUSA DE ABORTOS E MALFORMAÇÕES EM CAPRINOS E RATOS. Adviser: Ricardo Barbosa de Lucena. Farmers of the Semiárido, Northeastern Brazil claim that a plant known popularly as “catingueira” is responsible for abortions and malformations in small ruminants. The reproductive losses affects mainly goats. Cases of toxicity have been report in mollusks and bees. However, the hay of the leaves of this plant constitutes good fodder for animals and flowers, leaves and bark are used in the treatment of catarrhal infections and diarrhea in humans. At the beginning of the rainy season (December to January 2014) in city of Paus dos Ferros, Rio Grande do Norte, it was observed large number of abortion and malformed young goats (arthrogryposis and palatoschisis), affecting 90% to 80 pregnant goats from the flock. The plant was collected on a farm of city of Paus dos Ferros and identified with Poincianella pyramidalis. There were no other plants that cause abortion, as jurema-preta or pereiro. To prove the toxic effects of this plant, the experimental of poisoning were studied in pregnant rats. The plant constitutes 30% of the feed in the middle third (Group 1) and final third (Group 2) of gestation. Another control pregnant rats (Group 3) were fed only with commercial feed for rats. The rats that ingested the plant had prolonged gestation in 3-5 days. In Group 2 rats, 50% of concepts were stillborn. Also in this group that consumed the plant in the last third of pregnancy, the fetuses showed the difficulty breathing birth, congenital cataract and malformations in the forelimbs (arthrogryposis). The toxic potential of P. pyramidalis was demonstrated, as evidenced by the occurrence of abortions and malformations, especially when the plant is ingested in the final third of pregnancy.