Doornenbal H, Tong A K
Growth. 1981 Winter;45(4):279-85.
The relative growth of the kidneys, spleen, liver, heart, lungs and G.I. tract were studied in a group of 90 pigs, serially slaughtered over a live weight range of 10 to 132 kilograms. The relationships between organ weights and body weight, body protein and body fat were examined by the allometric equation: Y = aXb, or in logarithmic terms: log Y = log a + b log X. The growth coefficients (b) of organ weights relative to body weight and body composition were similar for both sexes (P greater than .13), except that heart growth relative to body fat was significantly (P less than .04) higher for females (b = .54) than for castrated males (b = .50). A significant sex difference (P less than .05) in lung weight was also noted after adjustment to common body weight; there were no significant sex differences in organ weights after adjusting to common body protein and body fat. The spleen, heart and lungs grew at a faster rate relative to body weight and body composition than the kidneys, liver and digestive tract. The growth coefficients ranged from .44 to .87, indicating that the visceral organs develop at a slower rate relative to body weight and body composition.
对一组90头猪进行了研究，这些猪在10至132千克的体重范围内被连续屠宰，以观察肾脏、脾脏、肝脏、心脏、肺和胃肠道的相对生长情况。通过异速生长方程Y = aXb（或对数形式：log Y = log a + b log X）来检验器官重量与体重、身体蛋白质和身体脂肪之间的关系。除了心脏相对于身体脂肪的生长在雌性（b = 0.54）中显著（P < 0.04）高于去势雄性（b = 0.50）外，两性器官重量相对于体重和身体组成的生长系数（b）相似（P > 0.13）。在调整到相同体重后，也观察到肺重量存在显著的性别差异（P < 0.05）；在调整到相同身体蛋白质和身体脂肪后，器官重量没有显著的性别差异。相对于体重和身体组成，脾脏、心脏和肺的生长速度比肾脏、肝脏和消化道更快。生长系数范围为0.44至0.87，表明内脏器官相对于体重和身体组成的发育速度较慢。
