狮头鹅生长发育模型的研究

Studies on Growth Model of Shitou Goose

在家养条件下选用狮头鹅80只,测定了12周龄前的体重、体斜长、胸深、龙骨长、骨盆宽和胫长,并对各指标进行生长曲线拟合。结果表明,公、母鹅各指标在5周龄前生长状况基本一致,5周龄后公鹅生长速度明显快于母鹅。其中Logistic模型、Bertallanffy模型和Gompertz模型均能很好地拟合出狮头鹅各指标的生长曲线。

Choosing 80 Shitou geese wbich were reared under domestic condition to measure their body weight, body length, breast depth, sternum length, pelvis width and tibia length until 12 weeks. And then fit the growth curves of all the quotas. The results indicated that all the quotas of the males and females had the same growth state before 5 weeks-old. And then the males got a hight growth rate than the females did. The growth curves could be fitted very well by Logistic model, Bertallanfffy model and Gompertz model for the Shitou goose.