laying strain

• 产蛋品种

laying strain的用法和样例：

例句

1. The modern laying strains are bred for high egg production.
   近代产蛋品系的培育，目的是为了高产蛋量。
2. The results also showed that the increasing effect of long storage time and the later stage of laying cycle on hatchability.
   越是产蛋后期，种蛋贮存时间越长，对孵化率影响越大。