Table 5. Effects of groups categorized by total number and cross sectional area of muscle fiber on meat quality traits

TNF High Low Levels of significance

CSAF Large Middle Small Large Middle Small

Group HL(n=9) HM(n=33) HS(n=64) LL(n=39) LM(n=61) LS(n=33) TNF CSAF TNFĂ—CSAF
Postmortem metabolic traits
pH45 min 6.16a(0.08)A 6.01b(0.05) 6.09ab(0.03) 5.91c(0.04) 6.10ab(0.03) 6.16a(0.04) NS NS **
pH24 h 5.56(0.04) 5.53(0.02) 5.53(0.02) 5.58(0.02) 5.55(0.02) 5.55(0.03) NS NS NS
Drip loss (%) 4.96(0.73) 5.40(0.40) 5.47(0.30) 5.24(0.39) 4.60(0.32) 5.95(0.41) NS NS NS
FFU (mg) 68.99(13.05) 59.79(6.90) 55.12(4.90) 60.63(6.58) 47.49(5.21) 60.78(6.93) NS NS NS
L* 49.41(0.76) 48.16(0.41) 48.06(0.30) 47.79(0.39) 47.64(0.31) 48.60(0.41) NS NS NS
a* 6.46abc(0.42) 6.33bc(0.22) 6.24bc(0.16) 6.71ab(0.21) 6.91a(0.17) 5.77c(0.22) NS ** *
b* 2.77(0.36) 3.42(0.19) 3.52(0.13) 3.28(0.18) 3.41(0.14) 3.15(0.19) NS NS NS?
Protein Solubility (mg/g)
Sarcoplasmic protein 66.17ab(2.22) 67.89ab(1.19) 65.72b(0.84) 70.43a(1.12) 68.45a(0.91) 64.87b(1.18) NS * NS
Myofibrillar protein 164.29a(7.41) 132.56b(3.97) 121.15c(2.78) 133.50b(3.74) 128.63bc(3.02) 123.93bc(3.93) * *** **
Total protein 237.04a(10.32) 201.28b(4.89) 187.70c(3.43) 200.92b(4.61) 197.82b(3.72) 189.21bc(4.84) ** *** **