藏雪鸡消化系统形态的初步研究

Preliminary Study on Digestive System of Tetraogallus tibetanus in Morphology

对藏雪鸡消化系统的形态学作了初步的观察与研究,结果表明:藏雪鸡舌端尖细,舌根分叉,叉粘膜上具有尖端指向后方的栉状突:腺胃粘膜乳突短而宽,有80-90枚,肌胃发达;肠道长是体长的3倍,小肠较发达,长1047mm,占肠道总长64%;盲肠发达,长477.1mm,占肠道总长29.2%.并与鸡形目雉科中鹌鹑、白冠长尾雉、雉鸡、家鸡,及松鸡科三种鸟类的消化系统进行了比较.

Morphology for the digestive system of Tetraogallus tibetanus has been elementarily observed and studied. Results show that its tongue tip is thin, with tongue root branching off and comb-papilla on the mucous membrane of the branches pointing backward. On the mucous membrane of Glandular stomach there are about 80-90 short and wide papillas, and the Muscular stomach is upgrown. Its small intestine and cecum, 1047mm and 477.1mm long respectively, are relatively upgrown, occupying 64% and 29.2% respectively of the whole length of intestine that is 1.9 times the length of its body. We have also made comparison of its digestive system with that of Coturnix japonica, Syrmaticus reevesii and Phasianus colchicus torquatus in PHASIANIDAE and three types of birds in TETRAONIDAE.