丝羽乌骨鸡新品系产蛋性能的选育效果分析

Analysis on the Afect of Strain Breeding Silkies in Egg Production Ability

通过分析丝羽乌骨鸡白羽母系BM选育第六、七世代开产后20周内周平均产蛋量、300日龄产蛋量EGN、开产日龄AFE、开产体重BWT、开产蛋重EWT,描绘两世代产蛋曲线300日龄产蛋量、开产日龄、开产体重、开产蛋重之间相关分析和两世代产蛋性能的均数差异显著性检验。结果表明,开产日龄与300日龄产蛋量成负相关-0.00456开产体重与300日龄产蛋量成正相关0.00244开产体重与开产蛋重成正相关0.21078,开产蛋重与300日龄产蛋量成负相关-0.10614,开产蛋重与开产日龄成正相关0.32942,两世代产蛋性能有显著差异。

Through abtaining the statistics of the mean on every week egg production number during twenty weeks after producing eggs?300days egg numbers(EGN)?age at first egg(AFE)?body weight at first egg(BWT)and egg weight at first egg(EWT),we draw the sixth generation's and the seventh generation's egg producing graphs in white silkies and have correlation.analysis between EGN?AFE?BWT and EWT.The result shows that AFE and EGN are negative relation(-0.00456).BWT and EGN are positive relation(0.00244).BWT and EWT are positive relation(0.21078).EWT and EGN are negative relation(-0.10614)and EWT and AFE are positive relation(0.32942),and that the distinction on the generations' egg production abilities is prominent.