Chicks at 1-day of age were vaccinated with L 2 strain and original S 1133 strain separately.

  • 选择L2扩增后与原毒S1133株同时免疫1日龄雏鸡,免疫后15天脚垫攻击鸡呼肠弧强毒S1133株.攻毒后20天.

  • 互联网摘选 2025-01-20 18:48:14

    • 相关例句
    精确
    • 模糊
    • 词首
    • 词尾
    • 词义
    • 例句