Comparative Anatomical Studies On The Skull Bone Of Inner Mongolia Cashmere Goat, Tibetan Antelope And Pseudois Nayaur

The experiment studied the skull zootomy of Inner Mongolia cashmere goat, Tibetan Antelope and Pseudois nayaur during 3 to 4 ages by the general anatomise. Use vernier caliper to accurately measured the skull according to the animal skull meterage standardⅡ, and compare the skull in morphologic research.The result of studies indicate that the difference in length and width of right and left on the skull are conspicuous in the Inner Mongolia cashmere goat, Tibetan Antelope and Pseudois nayaur (p<0.01).The goat's tuber of frontal bone is conspicious and forms the front of skull antrum crest. The forehead is small and narrow than Pseudois nayaur but outside of it is smooth and glossy. The tear bone smooth, little introcession and it's eyepit strong. The goat's eyehole located on the base of eyepit but apart from the cornu tuber. The parietal bone make up of the most back of skull antrum. The front jaw bone is shorter than Tibetan Antelope and present like strip form have little bend. The tooth formula :2×((0.0.3.3)/(3.1.3.3))=32.The Tibetan Antelope's frontal bone forms the front of skull antrum crest. The forehead is small and narrow than Pseudois nayaur, but outside of it is smooth and glossy. The tear is smooth, little introcession and it's eyepit strong. The cornu next to the top of eyepit. Have a conspicious cornu ring. The gap of parietal bone and occipital shaped a half ball line to the front and top and the gap line very obvious. The front jaw bone is longer than Pseudois nayaur and present like a strip form have little bend. The tooth formula: 2×((0.0.2.3)/(3.1.3.3))=28.The Pseudois nayaur's frontal bone forms the front and the half back of skull antrum crest. The forehead is bigger and wider than Tibetan Antelope and goat, but outside is rougher than Tibetan Antelope and there is a introcession in the center of forehead. It's eyepit strong, too. The cheekbone bow is very strong. The cornu of Pseudois nayaur is stronger than Tibetan Antelope and goat, rough on the surface, have not crnu ring. The parietal bone make up the underside of skull antrum. The occipital shaped the back and bottom of skull antrum crest. The tooth formula: 2×((0.0.3.3)/(3.1.3.3))=32.