Age (d)

Feathers² (% DM)

Feather-free body (% DM)

Empty body³ (% DM)

Male

Female

Male

Female

Male

Female

1

1.03

1.12

9.38

9.38

8.43

8.63

8

1.55

1.97

8.56

8.31

8.23

8.02

15

2.55

2.02

8.28

8.29

8.07

7.96

22

2.06

1.78

8.58

8.28

8.26

7.93

29

1.70

1.47

8.72

8.07

8.36

7.64

36⁴

1.49

1.38

8.71

7.63

8.25

7.16

Mean

1.73

1.62

8.70

8.33

8.27

7.89

SD

0.49

0.34

0.41

0.56

0.24

0.47

Significance levels (p) of two-way ANOVA

Age (A)

<0.001

<0.001

<0.001

Gender (G)

<0.001

<0.001

<0.001

A × G

<0.001

=0.003

<0.001