Table 7 Growth performance and backfat thickness of finishing pigs fed low CP diets with net energy and additional L-Glu supplementation (Exp. 3)

BW, kg

 Initial

54.2

54.1

54.1

6.0

0.999

 d 21

79.0

79.7

80.7

6.3

0.788

 d 38

100.2

98.3

101.0

7.2

0.612

 d 56

123.6

122.0

123.2

7.9

0.872

ADG, kg/d

 d 0 to 21

1.19^B

1.22^AB

1.26^A

0.03

0.084

 d 21 to 38

1.24^a

1.09^b

1.20^ab

0.06

0.030

 d 38 to 56

1.30

1.32

1.23

0.08

0.115

 d 0 to 56

1.24

1.21

1.23

0.04

0.662

ADFI, kg/d

 d 0 to 21

2.92

2.95

3.04

0.16

0.478

 d 21 to 38

3.47

3.34

3.37

0.20

0.678

 d 38 to 56

3.50

3.67

3.54

0.21

0.355

 d 0 to 56

3.27

3.30

3.30

0.18

0.954

G:F

 d 0 to 21

0.41

0.41

0.42

0.02

0.539

 d 21 to 38

0.36

0.33

0.36

0.01

0.118

 d 38 to 56

0.37^a

0.36^ab

0.35^b

0.01

0.037

 d 0 to 56

0.38

0.37

0.37

0.01

0.360

Backfat thickness, mm

 d 0

5.87

5.67

5.64

0.69

0.835

 d 21

8.79

9.35

9.13

0.46

0.661

 d 38

11.00

10.35

11.27

0.52

0.461

 d 55

12.96

13.10

12.96

0.92

0.984