The daily gain is 762. 64g, 818. 49g, 827.00g and 910.00g respectively for Landrace, Yorkshire, Duroc and the three-breed cross finishing pigs and the feed conversion is 2. 80:1, 2. 78:1, 2. 71:1 and 2. 70: 1 respectively.

• 育肥期日增重：长白、约克夏、杜洛克、三元杂交猪分别达到762.；64克、818