Table 2 Effects of dietary treatments on body weight gain, feed intake, feed conversion ratio, egg production, egg weight, egg mass and feed cost of laying hens from 20 to 52 weeks of age

369.58 ± 71.36^b

473.54 ± 62.70^a

497.08 ± 38.11^a

466.67 ± 45.55^a

492.92 ± 49.83

532.09 ± 58.11

523.34 ± 36.01

508.54 ± 42.36

424.37 ± 41.43^b

502.81 ± 41.72^a

510.21 ± 35.67^a

487.61 ± 32.16^a

95.82 ± 1.61^b

100.46 ± 1.19^a

99.37 ± 1.69^a

99.85 ± 1.00^a

108.77 ± 2.57

112.11 ± 2.61

109.60 ± 1.69

111.12 ± 2.48

102.29 ± 0.89

103.28 ± 4.73

104.49 ± 1.65

105.49 ± 1.60

2.55 ± 0.09^a

2.39 ± 0.07^b

2.32 ± 0.08^b

2.33 ± 0.11^b

2.18 ± 0.17

2.06 ± 0.08

2.02 ± 0.08

2.10 ± 0.07

2.34 ± 0.13^a

2.14 ± 0.07^b

2.15 ± 0.06^b

2.20 ± 0.06^b

69.29 ± 2.86^b

75.77 ± 3.62^a

76.51 ± 2.44^a

77.00 ± 5.49^a

85.18 ± 6.37

89.91 ± 2.48

89.62 ± 4.69

87.77 ± 3.61

78.04 ± 2.83

82.84 ± 1.80

83.06 ± 3.12

82.38 ± 2.90

53.62 ± 0.27^b

54.82 ± 1.03^a

55.07 ± 0.80^a

55.21 ± 0.67^a

58.75 ± 0.84^b

60.30 ± 0.76^a

60.54 ± 0.73^a

60.25 ± 0.17^a

56.19 ± 0.46^b

57.56 ± 0.86^a

57.81 ± 0.70^a

57.73 ± 0.42^a

37.68 ± 1.34^b

42.08 ± 1.05^a

42.88 ± 1.83^a

43.06 ± 2.95^a

50.08 ± 2.06

54.42 ± 1.46

54.25 ± 2.66

52.88 ± 2.18

43.88 ± 2.57^b

48.25 ± 0.91^a

48.57 ± 1.91^a

47.97 ± 1.60^a

0.25 ± 0.003^b

0.49 ± 0.002^a

0.26 ± 0.004^b

0.51 ± 0.01^a