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Table 8 Effects of exogenous enzymes and diet on digestive enzyme activities in small intestinum of broilers,U/mg

From: Effects of exogenous enzymes and dietary energy on performance and digestive physiology of broilers

Diet

Enzyme

Trypsin

Chymotrypsin

Lipase

Amylase

  

21 d

42 d

21 d

42 d

21 d

42 d

21 d

42 d

NC

no

3,425.3abc

3,243.1abc

0.523 ab

0.548 a

427.2 ab

467.3abc

58.15

143.4bc

 

BM

3,465.4 abc

2,501.0 a

0.359 a

0.659 ab

362.8 ab

355.7 ab

59.77

119.5 abc

 

AG

4,837.5bc

4,139.0cd

0.905 b

1.080 c

473.2b

596.5c

63.18

145.1bc

 

XG

4,264.8 abc

5,978.4e

0.805 b

0.898 bc

394.7ab

463.9 abc

75.20

192.5d

PC

no

2,848.4 a

4,655.0d

0.754 ab

1.064 c

291.5 a

499.8bc

59.63

160.9cd

 

BM

4,290.9abc

2,760.3ab

0.690 ab

0.726 ab

426.2 ab

385.1ab

69.53

95.06a

 

AG

3,050.6 ab

3,571.2bc

0.726 ab

0.653 ab

351.0ab

316.5a

62.67

104.5 ab

 

XG

5,289.4c

3,917.3cd

1.473 c

1.483 d

474.1b

361.5ab

78.56

116.4 ab

Main effects

         

Enzyme

no

3,136.8 a

3,949.0B

0.638 AB

0.806A

359.3

483.6b

58.90a

152.1 bc

 

BM

3,878.2 ab

2,630.7 A

0.525A

0.692A

394.5

370.4 a

64.65 ab

107.3 a

 

AG

3,944.0 ab

3,855.1B

0.815B

0.867 A

412.1

456.5 ab

62.93 a

124.8 ab

 

XG

4,777.1b

4,947.9C

1.139C

1.191 B

434.4

412.7 ab

76.88 b

154.5 c

Diet

NC

3,998.2

3,965.4

0.648a

0.796 a

414.5

470.8 b

64.08

150.1b

 

PC

3,869.8

3,725.9

0.911 b

0.981 b

385.7

390.7 a

67.60

119.2a

SEM

 

582.2

333.8

0.130

0.104

47.5

48.6

6.18

13.8

P -Value

 

Enzyme

0.062

<0.001

<0.001

<0.001

0.455

0.116

0.036

0.003

Diet

0.757

0.316

0.007

0.016

0.396

0.025

0.425

0.003

Enzyme × diet

0.069

<0.001

0.022

<0.001

0.043

0.007

0.854

0.014