Table 4. Muscle fiber density of the breast meat in white semi-broiler (W), and/broiler, with two new native chicken strains (A and B) according to slaughter age

Item 5 wk SEM1) 12 wk SEM1)
W* A B Broiler* A B
Muscle fiber density2) 47.0b 66.0a 66.4a 0.14 21.2c 39.4a 30.8b 0.67
n=18.
Muscle fiber density (fiber number/4,000 um2) of breast meat.
Values with different superscripts letters within the same row differ significantly (p<0.05).
Indicates a similar weight to native chickens.