金华猪生长曲线探讨

Study on the growth curves of Jinhua pig

以Logistic和Gompertz方程拟合90头金华猪生长肥育期的生长曲线。结果表明,Logistic方程和Gompertz方程均可拟合金华猪生长曲线(P<0.0001),但Gompertz方程的拟合度(R2=0.998)比Logistic方程的拟合度(R2=0.992)更高。肥猪在4.4月龄体重39kg时日增重最高达410.1g,采食量对月龄的回归方程的R2=0.990。

The growth curves of 90 grow-finishing Jinhua pigs were fitted by the equation of Logistic and Gompertz.Results showed that the equation of Logistic and Gompertz can fit the growth curves of Jinhua pig (P<0.0001),but the goodness(R^2) of Gompertz was greater than that of Logistic. The greatest daily gain was 410.1 g/d when the body weight was 39 kg at the age of 4.4 month .The growth curves is useful for the pig's raising and suitable marketing time.