Essien A I, Fetuga B L
Department of Agriculture, University of Cross River State, Uyo, Nigeria.
Beitr Trop Landwirtsch Veterinarmed. 1988;26(3):309-17.
The absolute and relative growth of the head, spleen, kidney fat, stomach, and intestine were studied for 64 intact male, castrated male, and female indigenous Nigerian pigs each. Highly significant (P less than 0.001) sex, age, and sex X age interactions were obtained for the absolute and relative weights of some of the organs and body parts. The results indicate that the organ and part growth was particularly rapid between birth and 280 days of age, but stabilized beyond that time. The average growth coefficient 'b' obtained from the linearized form Y = axb of the growth equation varied between 0.819 for the head and 1.677 for the kidney fat and agreed with relevant values reported in the literature. They confirmed the sequential anterior-posterior growth pattern of organs and body parts in different anatomical regions of the body. A comparison of the allometric and quadratic models used indicated that the organ/body part growth was better described by body weight than by age.
对64头完整雄性、去势雄性和雌性尼日利亚本地猪的头部、脾脏、肾周脂肪、胃和肠道的绝对生长和相对生长进行了研究。某些器官和身体部位的绝对重量和相对重量存在极显著的（P<0.001）性别、年龄以及性别×年龄交互作用。结果表明，器官和身体部位的生长在出生至280日龄期间特别迅速，但此后趋于稳定。从生长方程的线性形式Y = ax^b得出的平均生长系数“b”，头部为0.819，肾周脂肪为1.677，与文献报道的相关值相符。它们证实了身体不同解剖区域器官和身体部位从前到后的顺序生长模式。对所用的异速生长模型和二次模型的比较表明，器官/身体部位的生长用体重比用年龄能更好地描述。
