Table 4 Effect of diet characteristics on energy and nitrogen balances of growing pigs (Exp. 1)¹

BW, kg

40.2^b

44.0^a

44.1^a

44.1^a

0.9

0.01

DM intake, kg/d

1.33

1.34

1.37

1.40

0.02

0.07

 DM

90.4^a

90.0^a

87.3^b

85.8^b

0.7

<0.01

 CP

79.9^b

88.0^a

86.2^a

85.1^a

1.3

<0.01

 OM

90.4^a

90.2^a

87.7^b

86.3^b

0.7

<0.01

 GE

88.2^a

88.3^a

86.2^ab

84.0^b

0.8

<0.01

 Intake

19.9^d

37.0^c

46.9^b

50.4^a

0.6

<0.01

 Fecal output

4.0^b

4.5^b

6.6^a

7.5^a

0.5

<0.01

 Urinary output

6.6^b

10.6^ab

15.5^a

15.4^a

1.4

<0.01

 Retention

9.4^b

21.9^a

24.8^a

27.5^a

1.2

<0.01

 Urinary energy % of DE

1.8^c

2.7^b

3.4^ab

3.9^a

0.25

<0.01

 Methane energy, % DE

0.4

0.7

0.4

0.6

0.08

0.06

 ME/DE

97.8^a

96.6^b

96.2^bc

95.5^c

0.27

<0.01

 NE/ME

78.2

76.5

76.3

76.7

0.82

0.16

 ME intake,

2,273^a

2,160^bc

2,195^b

2,120^c

28

<0.01

 THP

1,259

1,308

1,268

1,250

25

0.15

 THPc²

1,232

1,317

1,265

1,271

22

0.08

 RE_P ³

152^c

337^b

381^ab

424^a

20

<0.01

 RE_L ⁴

862^a

516^b

546^b

446^b

34

<0.01

 RE

1,014^a

852^b

928^b

870^b

27

<0.01

 FHP

769

809

756

766

22

0.18

 Fed state

1.11^a

1.05^b

1.02^b

1.03^b

0.01

<0.01

 Fasted state

0.77

0.77

0.78

0.78

0.01

0.07

 DE

15.98^a

16.10^a

16.14^a

15.42^b

0.14

<0.01

 ME

15.64^a

15.56^a

15.52^a

14.73^b

0.13

<0.01

 NE

12.23^a

11.90^a

11.84^ab

11.30^b

0.15

<0.01