Table 1 Body weight, body composition and meat quality traits in high (HG) and low growth (LG) lines at 9 weeks of age (mean ± standard deviation)

Growth and body composition

Body Weight (g)

1922 ± 157

683 ± 67

<.0001

1127 ± 185

Abdominal Fat

2.5 ± 0.7

0.2 ± 0.2

<.0001

1.6 ± 0.9

Breast Yield

11. 4 ± 0.8

10.4 ± 0.8

<.0001

11.4 ± 0.5

Breast meat quality traits

Drip loss (%)

2.3 ± 1.2

2.1 ± 1.5

ns

1.2 ± 0.7

Lightness(BCo-L)

48.3 ± 3.2

45.6 ± 1.8

<.0001

47.3 ± 2.4

Redness (BCoR)

-0.2 ± 0.8

1.6 ± 0.7

<.0001

1.0 ± 0.9

Yellowness (BCo-Y)

9.4 ± 1.2

13.3 ± 1.4

<.0001

11.7 ± 1.5

pH 15 min (pH15)

6.20 ± 0.22

6.33 ± 0.16

0.0004

6.33 ± 0.18

Ultimate pH (pHu)

5.74 ± 0.09

6.14 ± 0.14

<.0001

6.01 ± 0.15