Marcadores fisiológicos do estresse e perfil metabólico de bovinos das raças Curraleiro Pé-Duro, Pantaneiro e Nelore em confinamento experimental

• Ano de defesa: 2013
• Autor(a) principal: Benatti, Liliane Aparecida Tanus
• Orientador(a): Maria Clorinda Soares , Fioravanti
• Banca de defesa: Fioravanti, Maria Clorinda Soares, Moura, Maria Ivete de, Viana, Rinaldo Batista, Costa, Marcos Fernando Oliveira e, Cunha, Paulo Henrique Jorge da
• Tipo de documento: Tese
• Tipo de acesso: Acesso aberto
• Idioma: por
• Instituição de defesa: Universidade Federal de Goiás
• Programa de Pós-Graduação: Programa de Pós-graduação em Ciência Animal (EVZ)
• Departamento: Escola de Veterinária e Zootecnia - EVZ (RG)
• País: Brasil
• Palavras-chave em Português: Proteínas de fase aguda; Bem-estar animal; Raças locais; Perfil metabólico; Perfil proteico; Cortisol
• Área do conhecimento CNPq: CLINICA E CIRURGIA ANIMAL::CLINICA CIRURGICA ANIMAL
• Link de acesso: http://repositorio.bc.ufg.br/tede/handle/tede/3787

This study aimed at evaluating the productive performance and physiological markers of stress of bovines from different breeds. We evaluated 45 bovines, Curraleiro Pe-Duro (Gcur), Pantaneiro (Gpan) and Nellore (Gnel), finished in feedlot. We analyzed cortisol and acute phase proteins levels, hemogram, protein and energetic profiles and enzymatic evaluation at three moments, M0, M56 and M103, we also carried out the histopathological examination of liver and lymph nodes fragments. Cortisol values in Gnel were higher at M0 than at M103. In all groups, the values of globular volume, hemoglobin, albumin and α-1-acid glycoprotein were higher at M0 than at M103, the same occurred to transferrin in Gpan and Gnel. IgG showed higher concentrations at M0 in all three groups. Fibrinogen in Gpan and Gnel was lower at M103 than in M0. Weight gain was satisfactory in all groups. The ALP and GGT serum values were lower at M0 and AST was lower at M103. The protein and the energetic profile (cholesterol) increased throughout the experiment. Histopathological analysis of liver and mesenteric lymph nodes showed cholangiohepatitis. Feedlot system for Curraleiro Pé-Duro, Pantaneiro and Nellore bovines causes discrete alterations in eritrogram and acute phase protein (α-1-acid glycoprotein). Metabolic and enzymatic profiles as well as hepatic and lymph nodes histopathological evaluation showed presence of cholangiohepatitis; however such alterations did not affect productive performance.