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Table 3 Effect of defatted diatom microalgal biomass on body weight, feed intake, egg production rate, egg mass and FCR

From: Effect of dietary defatted diatom biomass on egg production and quality of laying hens

Item

Control

7.5% Algae

7.5% Algae

15% Algae

-SBM

-SBM/Corn

-SBM/Corn

Body weight, kg

    

Wk 0

1.53 ± 0.16

1.60 ± 0.19

1.58 ± 0.18

1.58 ± 0.20

Wk 8

1.47 ± 0.08

1.58 ± 0.08

1.53 ± 0.11

1.51 ± 0.10

Daily feed intake, g/hen

 

Wk 1-4

100.1 ± 4.9

96.9 ± 3.9

95.9 ± 6.7

92.6 ± 11.2

Wk 5-8

96.0 ± 8.3a

96.0 ± 3.6a

95.0 ± 6.9a

85.5 ± 4.5b

Wk 1-8

98.1 ± 6.0a

96.4 ± 3.4ab

95.4 ± 5.9ab

89.1 ± 5.9b

Egg production rate, %1

   

Wk 1-4

86.7 ± 3.4

83.7 ± 6.3

84.7 ± 6.6

75.1 ± 16.4

Wk 5-8

81.3 ± 11.2a

85.6 ± 5.0a

83.9 ± 8.7a

69.0 ± 6.6b

Wk 1-8

84.0 ± 7.1a

84.6 ± 4.7a

84.3 ± 7.1a

72.1 ± 10.1b

Egg mass, g/hen/d

    

Wk 1-4

52.02 ± 2.02

49.79 ± 3.68

50.21 ± 3.23

45.63 ± 8.65

Wk 5-8

48.77 ± 5.02a

49.73 ± 2.23a

49.71 ± 4.34a

41.43 ± 4.01b

Wk 1-8

50.40 ± 3.87a

49.74 ± 2.93a

49.96 ± 3.36a

43.53 ± 5.71b

FCR2

    

Wk 1-4

1.92 ± 0.03

1.95 ± 0.05

1.91 ± 0.06

2.02 ± 0.11

Wk 5-8

1.97 ± 0.08a

1.93 ± 0.04a

1.92 ± 0.05a

2.06 ± 0.05b

Wk 1-8

1.94 ± 0.06a

1.94 ± 0.04a

1.92 ± 0.05a

2.05 ± 0.09b

  1. a,bMeans in the same row without a letter in common are different (P < 0.05).
  2. 1Egg production = 100 [number of eggs laid ÷ (number of hens x number of days)].
  3. 2FCR = feed intake (g) / egg mass (g).