食物类型对金丝雀(Serinus canaria)和白耳球(Pycnonotus leucotis)小肠解剖和组织学结构的影响

Shaimaa Hameed Hassan, Thaer R. Mhalhal, M. Faisal Majeed
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引用次数: 0

摘要

目的:比较金丝雀(Serinus canaria)和白耳球(Pycnonotus leucotis)小肠壁的组织形态学结构。方法:5只健康的金丝雀和白耳球。所有的鸟都被安乐死和解剖,并对标本进行组织学染色。结果:白头鹎肠长体长、肠重体重比均高于金丝雀。根据形态学研究,小肠分为三部分(十二指肠、空肠和回肠)。这两只鸟的十二指肠是一样的。大头鸟的空肠分为短的和宽的两部分,沿尾端延伸,金丝雀的空肠呈圆锥形,外向心转,内离心转,两种鸟类的回肠都很短。组织学上,小肠由单柱状细胞和杯状细胞排列。同时,十二指肠的肌肉粘膜由两层厚的平滑肌组成,平滑肌分为内圆束和外纵束;粘膜下层为较厚的疏松结缔组织层,浆膜在乳晕表面呈薄层疏松结缔组织。关键词:金丝雀,白耳球,小肠,形态,组织学。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
The Effect of Food Type on the Anatomical and Histological Structure of the Canary (Serinus canaria) and White-eared Bulbul (Pycnonotus leucotis) Small Intestine
Objective: A comparative study of the histomorphological structure of the wall of the small intestine of the canary (Serinus canaria) and white-eared bulbul (Pycnonotus leucotis). Methodology: Five healthy birds from the canary and white-eared bulbul. All birds were euthanized and dissected, and histological staining procedures were used on the specimens. Result: Bulbul's intestine length-to-body length and intestinal weight-to-body weight ratios were higher than a canary's. According to morphological studies, the small intestine is divided into three sections (duodenum, jejunum, and ileum). The duodenum was the same in both birds. The jejunum of bulbul is structured into short and wide segments that run caudally, and in canary, it forms a cone-shaped mass with outer centripetal and inner centrifugal turns, and the ileum is short in both birds. Histologically, the small intestine was lined by simple columnar cells and goblet cells. At the same time, the muscular mucosa of the duodenum is made up of two thick layers of smooth muscle that are divided into inner circular and outer longitudinal bundles; the submucosa was a loose connective tissue layer that was thick, tunica serosa appeared as a thin layer of loose connective tissue on the areolar surface. Keywords: canary, white-eared bulbul, small intestine, morphology, histology.
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