Hepatogenous photosensitization in horses caused by Brachiaria humidicola (Gramineae) in the State of Pará

Pesquisa Veterinária Brasileira

Oliveira, Carlos Magno C. de²  Tokarnia, Carlos Hubinger¹  Peixoto, Paulo Vargas¹  Barbosa, José Diomedes² 

[1]Universidade Federal Rural do Rio de Janeiro, Seropédica

[2]Universidade Federal do Pará, Castanhal

关键词: Poisonous plants;    Brachiaria humidicola;    plant poisoning;    photosensitization;    saponins;    horses.;   

DOI  :  10.1590/S0100-736X2006000300003

来源: Colegio Brasileiro de Patologia Animal-CBPA

【 摘 要 】

Data on the clinical-pathological aspects and on the epidemioloy of a disease in horses, characterized by phototsensitization, which occurs in northeastern of Pará, Brazil, are presented. Of a total of 40 horses examined clinically, post-mortem examination was performed on seven. Due to the characteristic lesions found on the non-pigmented skin, the macroscopic and histological alterations in the liver, and knowing that Brachiaria grasses contain saponins with toxic properties, which cause liver lesions and photosensitization in cattle and sheep, it is concluded that this disease in horses is caused by grassing exclusively Brachiaria humidicola. Index

【 授权许可】

CC BY-NC