2.10. Statistical analysis
All data were statistically analysed by the General Linear Model (GLM) procedure of SPSS, version 15.0 (SPSS, 2006). The model included dietary fat supplementation as main effect, except in sensory analysis where session was main effect too. Duncan test was applied to compare the mean values between diets. Mean values and standard error of the difference (sed) are reported in tables. Differences were considered significant if p≤0.05. Relationships among parameters of meat quality, intramuscular fatty acid composition, instrumental measurement of texture and sensory quality were performed by Principal Component Analysis (PCA) and were evaluated by calculating Pearson's correlation coefficients. PCA was applied using the statistical software XLSTAT, version Pro 7.5 (XLSTAT, 2004), and the Pearson's method using the statistical
software SPSS.