Table 4 Effect of Nutri biyo^® supplementation on nutrient digestibility in broiler chickens.

Total tract digestibility (21st day)

 Dry matter

80.01^d

81.45^c

83.28^b

85.91^a

0.313

0.002

 Ether extraction

85.93^d

86.87^c

88.32^b

90.15^a

0.025

0.001

 Crude protein

75.94^d

77.71^c

78.16^b

81.02^a

0.034

0.033

 Crude fiber

70.74^d

71.39^c

72.12^b

74.51^a

0.031

0.022

 Ash

58.10^d

59.25^c

60.93^b

62.81^a

0.033

0.013

Total tract digestibility (35th day)

 Dry matter

82.75^d

83.25^c

85.50^b

88.94^a

0.314

0.002

 Ether extraction

86.64^d

87.76^c

89.27^b

91.80^a

0.024

0.023

 Crude protein

77.22^d

79.03^c

80.57^b

83.26^a

0.031

0.001

 Crude fiber

72.06^d

73.37^c

74.78^b

77.34^a

0.032

0.002

 Ash

60.88^d

61.13^c

62.05^b

64.85^a

0.023

0.014

Ileal digestibility (35th day)

 Dry Matter

68.5^c

71.3^b

74.2^ab

75.8^a

1.0

0.021

 Ether Extract

75.1^b

77.3^b

80.5^a

81.2^a

1.4

0.034

 Crude Protein

71.2^c

73.6^bc

76.8^b

79.1^a

0.95

0.011

 Crude Fiber

41.8

42.9

45.0

45.6

1.5

0.108