The subtype of C. perfringen appeared to be simple within a single farm, and mixed with fewer other gene subtypes.

而同一鸡场的亚型较单一，以一种亚型为主，交叉有少数其他亚型。

youdao

The subtype of C. perfringen appeared to be simple within a single farm, and mixed with fewer other gene subtypes.

而同一鸡场的亚型较单一，以一种亚型为主，交叉有少数其他亚型。

youdao