TY - SER AU - Deado,A.C.de O. AU - Lopes,M.A.F. AU - Gandolfi,W. TI - Prevalence of gastric lesions (ulcers and /or erosions)and their relationship to possible stressfull factors in asymptomatic Quarter Horse foals: endoscopic survey KW - CAVALO KW - DOENÇA ANIMAL KW - ÚLCERA KW - EROSÃO ER -