Age
(Weeks)

% Hatch All Eggs

Chicks/Wk Hen-housed

Cum. Chicks Hen-housed

Fertility %

26

76.0

2.04

2.04

90.0

27

80.0

3.14

5.18

90.5

28

83.0

3.92

9.10

92.1

29

84.0

4.31

13.41

92.9

30

85.8

4.62

18.03

93.3

31

86.5

4.67

22.70

93.7

32

87.2

4.72

27.42

94.0

33

87.5

4.70

32.12

94.2

34

87.8

4.67

36.79

94.4

35

88.0

4.60

41.39

94.5

36

87.8

4.53

45.92

94.5

37

87.5

4.45

50.37

94.4

38

87.4

4.36

54.73

94.3

39

87.4

4.29

59.02

94.2

40

87.3

4.22

63.24

94.1

41

87.2

4.14

67.38

94.0

42

87.1

4.07

71.45

93.9

43

87.1

3.99

75.44

93.8

44

87.0

3.92

79.36

93.7

45

87.0

3.86

83.22

93.6

46

87.0

3.80

87.02

93.5

47

86.8

3.71

90.73

93.2

48

86.3

3.62

94.35

92.5

49

86.1

3.53

97.88

92.1

50

85.8

3.44

101.32

91.7

51

85.4

3.36

104.68

91.3

52

85.0

3.26

107.94

90.9

53

84.5

3.15

111.09

90.4

54

84.0

3.09

114.18

89.8

55

83.5

3.00

117.18

89.2

56

83.0

2.92

120.10

88.6

57

82.4

2.83

122.93

88.0

58

81.8

2.75

125.68

87.4

59

80.8

2.63

128.31

86.8

60

79.8

2.55

130.86

86.2

61

78.8

2.44

133.30

85.4

62

77.6

2.34

135.64

84.8

63

76.4

2.22

137.86

84.2

64

75.0

2.09

139.95

83.6

N.B. The figures given above are for flocks under separate sex feeding regimes