Table 1

Genetic lines (breed), classification (category), source and mean body weight at 8 weeks of age

Breed
Category1
Source2
Body weight, kg

Auracana
T
1
0.80
Barnevelder
T
1
0.82
Brown Leghorn
T
1
0.84
Buff Orpington
T
1
1.08
Friesian Fowl
T
1
0.63
Ixworth
T
2
1.56
J line
T
3
0.88
Maran
T
1
1.22
White Dorking
T
1
1.31
White Sussex
T
2
1.47
Layer 1
L
4
1.03
Layer 2
L
4
0.81
Layer 3
L
4
0.99
Layer 4
L
4
0.89
Layer 5
L
4
1.04
Layer 6
L
4
0.95
Layer 7
L
5
0.95
Layer 8
L
5
0.92
Layer 9
L
5
1.25
Layer 10
L
5
1.01
Layer 11
L
5
1.04
Layer 12
L
5
1.23
Broiler 1
B
6
3.79
Broiler 2
B
6
4.46
Broiler 3
B
6
4.36
Broiler 4
B
6
3.96
Broiler 5
B
7
3.50
Broiler 6
B
7
2.76
Broiler 7
B
7
3.66
Broiler 8
B
7
3.42
Broiler 9
B
8
4.02
Broiler 10
B
8
3.10
Broiler 11
B
8
4.30
Broiler 12
B
8
2.71

1 T = traditional line; L = commercial layer line; B = commercial broiler line

2 Origin of chicks; the same number indicates the same breeder of traditional breeds or commercial breeding company

Sandercock et al. Genetics Selection Evolution 2009 41:8   doi:10.1186/1297-9686-41-8