不同育雏方式下雏鸽的生长曲线

Growth curves of pigeons squab fed with different feeding ways:

对 31只雏鸽按离巢时间分 3组进行自然育雏和人工育雏 ,用Logistic和Gompertz方程进行生长曲线的拟合 ,同时进行瞬时生长率 (GR)、瞬时生长加速率 (GAR)和相对生长率 (指数生长率 )(RGR)的分析。结果表明 :Gompertz方程拟合优度 (R2 )大于Logistic方程 ,两者R2 均大于 0 .98;雏鸽与亲鸽隔离越早 ,其生长曲线出现拐点的时间越迟 ,极限体重 (A)越大 ,生长速率 (k)越小 。

Thirty one pigeons squabs were divided into three groups on the basis of the time at which they were away from their nests,and carried on nature feeding and hand feeding.The squabs were conducted to fit the growth curves with the equation of Logistic and Gompertz.Analysis was made on the squabs growth rate (GR),growth accelerative rate (GAR) and relative growth rate (RGR).The results showed that the goodness(R 2) of Gompertz was greater than that of Logistic,both R 2 were greater than 0.98.The earlier did squabs keep apart from their parents,the later was the time of the inflection point of squab growth curve,the larger was the highest asymptotic final weight (A) of curve,the smaller was the lowest growth rate(k) of curve,and the larger was the potential of squabs growth.