Fig. 1.

Protein-restricted diets supplemented with BCAA affected the growth performance of the growing pigs. The pigs were fed an adequate protein (AP) diet, a low protein (LP) diet, a LP diet supplemented with BCAA (LP + B) diet, and a LP diet supplemented with 2 times amount of BCAAs (LP + 2B). Data were calculated based on the values of the LP, LP + B, LP + 2B diet groups versus the AP diet group (positive control). Data are means ± SE (n = 6). A: Final body weight (FBW) change; B: Average daily gain (ADG) change; C: Average daily feed intake (ADFI) change; D: Feed conversion ratio (FCR) change.