摘要
用仙湖3号鸭第七世代B系核心群40个家系221只母鸭的个体产蛋数据进行相关和回归分析。结果:母鸭46周龄的产蛋数(x1)与64周龄的产蛋数(x2)相关系数r=0.9934,回归方程为x2=1.5117x1+34.2631;母鸭46周龄的产蛋数(x1)与全期产蛋数(y)的相关系数r=0.9954,回归方程为=1.4281x1+105.3878;46周龄和64周龄产蛋数同时影响全期产蛋数,拟合的二元回归方程为:=1.1533x1+0.1818x2+99.1598,拟合度R2=0.9913。上述方程可用于仙湖鸭的早期选种。
individual egg -laying records for Xian Hu No.3 ducks breeder were used to analyse the correlationship between the early egg production and the total egg production,and the regression equations were established.According to these regression equations,the selection of duck breeds can be proceeded in earlier period,and can also shorten the generation interval,and increase the genetic progress of egg-laying number.
出处
《中国家禽》
北大核心
2003年第2期15-16,共2页
China Poultry
