马岗鹅产蛋量的影响因素探讨

Preliminary studies of the factors influencing egg production performance of Magang Geese

以 2 4 9只 (2 0 7♀、42 )马岗鹅为试验研究素材 ,分析了影响马岗鹅产蛋量的主要因素 ,得到开产日龄、连产期长、产蛋期及就巢天数与产蛋量的相关系数分别为 - 0 .2 684,0 .92 0 2 ,0 .3799及 - 0 .51 59。结果表明 :开产日龄、连产期长、产蛋期及就巢天数是马岗鹅产蛋量的主要影响因素。由于马岗鹅种鹅个体变异较大 ,可望通过上述性状的选择提高后继世代种鹅的产蛋性能。

狻?2)breeder geese were used to analyze the major factors influencing egg production performance of Magang Geese.The coefficients of the age of egg laying,days of continual egg laying,period of egg laying,time of broodiness and annual egg production of breeder geese were -0.268 4,0.920 2,0.379 9 and -0.515 9 respectively.It showed that the above four factors were the main factors influencing egg production performance.It suggested that the egg production performance of the following generations could be improved by selection of the above traits in view of great differences between individuals.