Data/hora: 17/06/2024 06:17:07

Provedor de dados: | 77
País: | Chile
Título: | Histomorphometric Characterization of Forestomach of Yak (Bos grunniens) in the Qinghai-Tibetan Plateau
Autores: | Wang,Jinbao; Li,Haiyan; Zhang,Lu; Zhang,Yuan; Yue,Mingxia; Shao,Baoping; Wang,Jianlin.
Data: | 2014-09-01
Ano: | 2014
Palavras-chave: | Bos grunniens; Forestomach; Histomorphometric; Qinghai-Tibetan Plateau.
Resumo: | Six forestomachs of yaks (Bos grunniens) were studied with gross dissection and histological methods. It was found that the forestomach of yak consisted of the following three parts, rumen, reticulum and omasum, which were composed of the mucosa, submucosa, muscularis and serosa. In addition, the mucosal epithelium was covered with stratified squamous epithelium, with part of keratinized the shallow cells. Rumen, the mucosa of which formed ligulate papillae varying in size and shape, was no muscularis mucosa. Reticulum, consisted of a surface epithelium that invaginated to various extent into the lamina propria, formed various folds in shape, namely, grid-like small rooms. Furthermore, there are many secondary folds densely covered with keratinized papillae. The most striking feature of the omasum was to be formed the laminae omasi varying in length, with short and rough papillae distributing on both sides. Taken together, there was no glands within the mucosa and lamina propria of forestomach of yak, where diffuse lymphoid tissues can be observed clearly. It is, therefore, believed that the yak forestomach may have evolved those specific structural characteristics in response to the unique living environment and dietary habits impose on the Qinghai-Tibetan Plateau.
Tipo: | Journal article
Idioma: | Inglês
Identificador: | http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022014000300021
Editor: | Sociedad Chilena de Anatomía
Formato: | text/html
Fonte: | International Journal of Morphology  v.32 n.3 2014