Crossbred Duroc was not better than pure ones for litter size at birth.
Crossbred Duroc was not better than pure ones for litter size at birth.
系间杂交公猪所配母猪的产仔数也与纯系所配母猪的产仔数相近。
Crossbred Duroc was not better than pure ones for litter size at birth.
系间杂交公猪所配母猪的产仔数也与纯系所配母猪的产仔数相近。