东北民猪、哈尔滨白猪和长白猪的主要器官数值测量分析

本文指出,东北民猪的髖骨长而宽,臀肌和股后肌群的重量较轻。长白猪的髖骨长而狭窄,其肌肉的重量最重。哈尔滨白猪的这些肌肉不如长白猪的发达。背最长肌在胸腰之间的横切面,东北民猪的呈等腰三角形,而哈尔滨白猪和长白猪的呈椭圆形。在第六肋骨处胸腔形状,东北民猪的胸腔呈扁橢圓形,其它两品种猪的胸腔呈圆形。东北民猪的骨性产道和子宫角都大于其它两品种猪的。

MEASUREMENTS ON THE MAIN ORGANS OF NORTHEAST NATIVE, HARBIN WHITE AND LANDRACES PIGS

At 9 months of age the os coxae of Northeast Native(?)pigs was long and wide, weignts of M. glutaeus and the posterior femor group of muscles was the lightest. The os coxae of Landrace was long and narrow, and weignts of thsese muscules above mentioned was the heaviest among the breeds studied. The same muscles of Harbin White pigs were not as well developed as the Landrace, probably due to their shorter os coxae and shorter distance between ischidic tubers. The transverse section of M. longi-ssimus of Northeast Native pigs at the thorax and loin junction was isosceles triangular in shape, but the hape of this cross section was elliptical in Landrace and Harbin White pigs. According to the principle that the area of ellipse is larger than that of a isosceles triangle, weight of this muscle of the Native pigs was lighter than hose of the two other breeds. The transverse section of thoracic cavity at the level of 6th ribs in Northeast Native pigs was elliptied in shape, and these of the two other breeds were round in shape, so that, the transverse sections of abdominal cavities of the three might be similar in shape with their respective thoracic cavities. this might be related to the small volume of abdominal cavity of the Native pigs, which might be reflected in their lesser feed intake. Weights of heart, slung, stomach, intestine and kidneys in Northeast Native pigs were the largest among these three breeds at similar age. The bony parturition path, the ovaries and cornia uterus of Northeast Native pigs were the largest among taese three breeds.