Age

Gender

Total body weight¹

(g)

Feather weight¹

(g)

Feather percentage (%)

Reference basis²

Literature source

49 d

M + F

1624 - 1708

3.4 - 4.0

… starved BW

[18]

45 d

52 d

44 d

52 d

M

F

M

F

1783 - 1803

1692 - 1722

1769 - 1771

1700 - 1714

121 - 124

125 - 128

116 - 121

116 - 122

6.7 - 6.9

7.3 - 7.5

6.6 - 6.8

6.9 - 7.1

… full-fed live weight

[19]

39 d

49 d

M

M

1929 - 2065

2510 - 2727³

71 - 81 (DM)

5.91 - 6.00⁴

5.66 - 6.07⁴

… empty BW after 18 h food removal

[12]

48 d

48 d

M

F

1992 - 2212

1683 - 1783

4.73 - 6.10

5.19 - 5.75

… starved live weight

[42]

6 wk

M + F

1895

111.5

61.5 (DM)

5.92

3.26 (DM)

… final whole BW

[35]

28 d

42 d

M

656

1301⁵

38.8⁵

86.8⁵

5.91

6.67⁵

[20]

7 wk

M

F

1954 - 2576

1700 - 2167

4.45 - 4.80

4.92 - 5.36

… final whole BW

[15]

49 d

M + F

2003

4.66

… final whole BW

[36]

7 wk

8 wk

1771

2151

5.7

6.0

… BW at slaughter

[16]

6 wk

1895

111.5

61.5 (DM)

5.92

3.26 (DM)

… final whole BW

[37]

7 wk

7 wk

M

F

1786

1462

5.34

6.11

... BW after 24 h without feed

[38]

21 d

M

710 - 779

71.0 - 75.7

9.51 - 10.10

… final whole BW

[21]

21 d

M

5.1 - 10.1

1.0 - 1.5

… final whole BW

[22]

37 d

M

2006

112

5.6⁵

… BW at slaughter

[39]