Aspectos anátomo-histológicos e neuro-endócrinos do intestino delgado da capivara Hydrochoerus hydrochaeris Linnaeus, 1766 (Mammalia, Rodentia, Hydrochaeridae)

• Ano de defesa: 2005
• Autor(a) principal: Sartori, Sirlene Souza Rodrigues
• Orientador(a): Fonseca, Cláudio César
• Banca de defesa: Paula, Tarcízio Antônio Rego de , Neves, Clóvis Andrade , Viloria, Marlene Isabel Vargas , Maldonado, Izabel Regina dos Santos Costa
• Tipo de documento: Dissertação
• Tipo de acesso: Acesso aberto
• Idioma: por
• Instituição de defesa: Universidade Federal de Viçosa
• Programa de Pós-Graduação: Mestrado em Medicina Veterinária
• Departamento: Biotecnologia, diagnóstico e controle de doenças; Epidemiologia e controle de qualidade de prod. de
• País: BR
• Palavras-chave em Português: Capivara; Intestino delgado; Morfologia; Histologia; Hydrochoerus hydrochaeris
• Palavras-chave em Inglês: Capybaras; Small intestine; Morphology; Histology; Hydrochoerus hydrochaeris
• Área do conhecimento CNPq: CNPQ::CIENCIAS BIOLOGICAS::MORFOLOGIA
• Link de acesso: http://locus.ufv.br/handle/123456789/5025

Anatomical, histological and morphometric aspects of the small intestine of adult capybaras were analyzed, being obtained data on the length and the volumetric capacity of this organ and of its segments, as wel1 as histological characteristics of its wal1, with emphasis in the study of the enteroendocrine cel1s and of the submucosal and myenteric nervous ganglions. For the histological and morphometric analysis of the small intestine were used the coloration techniques: Hematoxylin-Eosin, Blue Alcian - Periodic Acid Schiff; Grimelius, modified Masson Fontana and Peroxidase anti-peroxidase with anti-serotomn monoclonal sore. Among the anatomical results was verified that the small intestine of the capybara is about five times longer than the corporallength and that its volumetric capacity represents 6,7% of the corporal weight; among the histological results were observed: pleats in spiral, thick and ramified, along the whole intemal coating of the smal1 intestine; vil1us with forms and sizes varied; thick brush-border; presence of Briinner' s glands in the submucosal layer and in the basal area of the mucosallayer, restricted to the cranial portion of the duodenum and rich in acid and neutral glicoconjugates; smaller frequency of goblet cel1s in the duodenum, increasing caudal1y; Paneth's cel1s in the base of the crypts; argyrophil, argentaffin and serotonin immunoreactive endocrine cel1s in all the segments of the small intestine, abundant in the area of the crypts and more frequent in the duodenum; submucous and myenteric nervous ganglia developed, being larger and more frequent the myenteric ganglions.