摘要
利用新扬州鸡开产日龄、30 0日龄产蛋数和 30 0日龄蛋重 3个性状的遗传参数与 6组经济加权值求解出 6个约束选择指数及其预期遗传进展、预估准确度和指数的遗传力 ;通过实际记录模拟选择和预期遗传进展分析。结果表明 :在IA、IB、IC、ID、IE 和IF6个约束选择指数中 ,IE
restricted selection indexes with their genetic gains of prediction, accuracy of prediction and heritabilities of indexes were calculated by genetic parameters and 6 sets of economic weight for 3 traits. These traits were age at first egg, numbers of egg at 300 days old and egg weight at 300 days for New Yangzhou yellow chickens respectively. The results showed that I E was the best one among 6 restricted selection indexes according to the genetic gains of prediction and model selection to practical records.
基金
江苏省农业三项工程项目
关键词
约束选择指数
预期遗传
新扬州鸡
鸡
育种
restricted selection index
genetic gain of prediction
New Yangzhou yellow chickens
