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Table 1 Genetic lines (breed), classification (category), source and mean body weight at 8 weeks of age

From: Changes in muscle cell cation regulation and meat quality traits are associated with genetic selection for high body weight and meat yield in broiler chickens

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. 1 T = traditional line; L = commercial layer line; B = commercial broiler line
  2. 2 Origin of chicks; the same number indicates the same breeder of traditional breeds or commercial breeding company