白颊噪鹛消化系统形态的初步研究

Morphology of Digestive System of Garrulax sannio

白颊噪鶥消化系统的形态学初步观察与研究,结果表明:白颊噪鶥舌呈长三角形,舌尖分叉呈"V"字型,粘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43.33mm,食管与嗉囊分界不明显;腺胃上圆形乳突少而稀,肌胃发达;肠几乎与体长相等,小肠较发达,雄鸟约长182.8mm,占肠道总长88.8%;雌鸟约长196.38mm,占肠道总长88.6%;具有左右侧盲肠,占肠道总长4.87%;直肠占肠道总长6.4%;肝分左右两叶;胰细长形,分两小叶。这些消化道特征说明白颊噪鶥是以食虫为主的杂食性鸟类。

Morphology of the digestive system of Garrulax sannio has been observed preliminarily by naked eyes and dissecting microscope.The results indicate that the tongue is thin triangle,The apex of tongue is furcate, with tongue root branching of and comb-papilla on the mucous membrane of the branches pointing backward.The length of the esophagus is 43.33mm.and the crop is different from aspect. On the surface of glandular stomach there are short and small papilla,and the muscular stomach is upgrowth.The length of intestine is almost as long as that of the whole body.The small intestine is relatively developed,with a length of 182.8mm in male accounting for 88% of total length of intestinal tract,while the female is 196.38mm and 88.6%. The caecum length is 5.46mm, The caecum occupys 4.87% of the whole length of the intestine.Rectum occupys 6.4% of the whole length of the intestine. 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 Garrulax sannio entomophagous.