It was selected 10 Landrace X Yorkshire, 10 Berkshire X LY, 10 Duroc X LY, healthy disease-free and in good body condition,similar body weight weaning piglets, divided into three groups, which was conducted to research on growth performance of different cross combinations. All three groups of piglets fed conventional diets. The results showed that compared with the combinations of LY, the combinations of BLY and DLY had 4.97% and 5.47% lower average dry matter intake and 3.13% (P<0.05) and 1.14% (P<0.05) higher average daily gain, respectively. The ratio of feed to gain was 7.94% and 6.35% lower for the combinations of BLY and DLY relative to LY. There was 0.61 and 0.41 yuan more economical profit for the combinations of BLY and DLY over LY. These results indicated that the combinations of BLY and DLY were more beneficial for the growth performance, which suggested to be applied in the practice. |