Skip to main content

Table 1 Body weights and yields, and Pectoralis major muscle and meat quality traits of animals used for expression analyses

From: Identification of differentially expressed genes in chickens differing in muscle glycogen content and meat quality

  Fat Lean   G+ G-  
Chickens (n) 8 8 p value 8 8 p value
Growth and body composition       
Body Weight (g) 1765 ± 99 1679 ± 178 NS 1891 ± 226 1979 ± 195 NS
Breast Yield (%) 12.4 ± 0.7 13.4 ± 0.8 < 0.05 12.0 ± 0.9 12.1 ± 0.7 NS
Abdominal Fat Yield (%) 5.2 ± 0.9 2.6 ± 0.7 < 0.001 3.8 ± 0.7 2.9 ± 0.8 < 0.05
Breast meat quality traits       
Glycolytic Potential (μM/g) 122 ± 8 91 ± 4 < 0.001 126 ± 9 78 ± 5 < 0.001
Ultimate pH 5.66 ± 0.06 5.86 ± 0.08 < 0.001 5.55 ± 0.07 5.88 ± 0.07 < 0.001
Lightness (L*) 49.7 ± 2.4 43.96 ± 2.1 < 0.001 50.6 ± 1.4 48.3 ± 1.7 < 0.01
Redness (a*) -0.2 ± 0.6 1.7 ± 0.6 < 0.001 0.2 ± 0.7 0.4 ± 1.6 NS
Yellowness (b*) 11.0 ± 1.8 12.6 ± 0.9 < 0.05 11.2 ± 1.6 11.4 ± 2.0 NS
Drip Loss (%) 1.7 ± 0.7 1.0 ± 0.5 < 0.05 1.2 ± 0.65 1.1 ± 0.67 NS
  1. The G+ and G- chickens were generated from the F2FL population produced from the 2 generation intercross between the founder Fat and Lean lines. The G- and G+ chickens correspond to the individual females exhibiting the lowest and the highest muscle glycogen content within the F2FL population. NS = non-significant.