摘要
对松鸦消化系统的形态学作了初步的观察与研究,为松鸦的保护利用、饲养及生物学研究提供形态学的基础资料,结果表明:松鸦舌呈宽阔三角形,舌尖分叉呈"V"字型,分叉深为0.96 mm,黏膜上具有尖端指向后方的栉状突;食道颈胸分段不明显,食管全长55.34 mm,食管与嗉囊分界明显,嗉囊显著膨大;腺胃上具有数目较多且均匀分布的圆形乳突,肌胃发达;肠全长454 mm,约为体长的2.06倍,小肠较发达,长419 mm,占肠道总长92%;左右侧盲肠长5.46 mm,占肠道总长1.2%;直肠占肠道总长2.6%;肝分左右两叶;胰细长形,分两小叶。这些消化道特征说明松鸦是以食虫为主的杂食性鸟类。
Morphology of the digestive system of Garndus glandarius has been observed preliminarily by naked eyes and dissecting microscope. We hope that the article will offer some foundation information of morphology for protecting , utilizing, breeding and researching in Garrulus glandarius The results were as followed： The tongue is fat triangle. The apex of tongue is fureate, and the furcate depth is 0.69 ram, with tongue root branching of and comb-papilla on the mucous membraneof the branches pointing backward. The length of the esophagus is 55.34 mm. and the crop is different from aspect. On the surface of glandular stomach there are full and small papilla, and the muscular stomach is upgrowth. The length of intestine is 2.6 times that of the whole body. The small intestine is relatively developed, with a length of 419ram accounting for 92% of total length of intestinal tract. The caecum length is 5.46 mm. The caecum oceupys 1.2 % of the whole length of the intestine. Rectum occupys 2.6 % of the whole length of the in- testine. Liver is separates into two parts. The pancreas locating in the flection of the duodenum is thin and long, which all divides into two parts. According to the character of the digestive system, we can conclude that the food habit of Garrulus glartdarius entomophagous.
出处
《经济动物学报》
CAS
2008年第4期234-236,共3页
Journal of Economic Animal
基金
中国博士后科学基金项目(2005037803)
四川农业大学青年科技创新基金项目(00230500)
关键词
松鸦
消化系统
形态学
Garrulus glandarius
digestive system
morphology
