Diets Db20 and Dw20 led to higher meat pH values (5.52 and 5.53, respectively) than diet Dc20 (5.44; P < 0.05), while the rest showed intermediate values. No differences in WHC, CL and the texture parameters (shear force, shear firmness and area) in the longissimus muscle depending on the diet were found (P > 0.05).
Table 5 shows the chemical and fatty acid composition in the longissimus muscle of rabbits fed with the different experimental diets. The level of protein decreased as the corn DDGS level in the diet increased (− 0.34 and − 0.65 g/100 g for diets Dc20 and Dc40 compared to control, respectively; P < 0.05). In general, diets that included 20% DDGS led to a decrease in meat protein content compared to diet C (− 0.26 g/100 g; P < 0.05). No differences (P > 0.05) in intramuscular fat content of the longissimus muscle depending on the diet were found.