The genotype CE, DF, AB of MCW0068, AD and CF of MCW0154, CD, BB and EG of MCW0128, FH, DG of MCW0208 were significantly correlate to body weight at first egg.

• 标记MCW0068中CE、DF、AB基因型，MCW0154中AD、CF基因型，MCW0128中CD、BB、EG基因型以及MCW0208中FH、DG等基因型对开产体重影响显著。