Fig. 1

Incidence of white striping (WS) per line and sex. pHu + = broiler line selected for high value of ultimate pH; pHu- = broiler line selected for low value of ultimate pH. NORM = normal breast fillets; MOD = breast fillets moderately affected by white striping; SEV = breast fillets severely affected by white striping. Observed frequencies per line and sex have been compared within each category of WS. a-cdifferent letters indicate significant difference (p < 0.05) within each WS category