## 3 Results and Discussion
\begin{table}
\begin{tabular}{l c c c c c} \hline \hline \multirow{2}{*}{
\begin{tabular}{c} **Genetic Groups** \\ **of Fatteners** \\ \end{tabular} } & \multicolumn{2}{c}{**Colour**} & \multirow{2}{*}{**IMF (\%)**} & \multirow{2}{*}{**Protein (\%)**} & \multirow{2}{*}{**pH**} & \\ \cline{2-2} \cline{5-6}  & **L\({}^{*}\)** & & & & \\ \hline \multicolumn{6}{c}{Breed} \\ ZS & 46.43 \(\pm\) 5.46 & 8.17 \({}^{\text{a}}\)\(\pm\) 0.99 & 2.89 \(\pm\) 1.88 & 3.44 \({}^{\text{ab}}\)\(\pm\) 0.92 & 24.54 \(\pm\) 1.42 & 6.39 \(\pm\) 0.31 \\ ZS \(\times\) D & 47.33 \(\pm\) 4.15 & 6.87 \({}^{\text{b}}\)\(\pm\) 1.54 & 2.93 \(\pm\) 1.80 & 3.52 \({}^{\text{ab}}\)\(\pm\) 0.76 & 24.19 \(\pm\) 1.11 & 6.38 \(\pm\) 0.25 \\ (ZS \(\times\) ZS) \(\times\) D & 46.05 \(\pm\) 6.71 & 7.98 \({}^{\text{a}}\)\(\pm\) 1.46 & 2.86 \(\pm\) 1.65 & 3.80 \({}^{\text{a}}\)\(\pm\) 1.54 & 25.41 \(\pm\) 1.07 & 6.26 \(\pm\) 0.36 \\ ZS \(\times\) PLW & 47.12 \(\pm\) 1.74 & 6.67 \({}^{\text{b}}\)\(\pm\) 0.70 & 2.17 \(\pm\) 0.62 & 2.95 \({}^{\text{b}}\)\(\pm\) 0.32 & 24.32 \(\pm\) 1.24 & 6.42 \(\pm\) 0.26 \\ \(p\)-value & 0.085 & 0.005 & 0.168 & 0.007 & 0.168 & 0.768 \\ \hline \multicolumn{6}{c}{Barrows} \\ ZS & 46.46 \(\pm\) 6.33 & 8.01 \(\pm\) 0.80 & 2.63 \({}^{\text{ab}}\)\(\pm\) 2.12 & 3.65 \({}^{\text{ab}}\)\(\pm\) 1.03 & 24.43 \(\pm\) 1.34 & 6.37 \(\pm\) 0.23 \\ ZS \(\times\) D & 47.75 \(\pm\) 5.12 & 7.34 \(\pm\) 2.02 & 3.56 \({}^{\text{a}}\)\(\pm\) 2.69 & 3.51 \({}^{\text{b}}\)\(\pm\) 0.89 & 23.77 \(\pm\) 0.77 & 6.26 \(\pm\) 0.17 \\ (ZS \(\times\) ZS) \(\times\) D & 41.39 \(\pm\) 3.19 & 7.14 \(\pm\) 0.70 & 0.72 \({}^{\text{b}}\)\(\pm\) 1.11 & 4.85 \({}^{\text{a}}\)\(\pm\) 1.16 & 25.65 \(\pm\) 0.93 & 6.51 \(\pm\) 0.18 \\ ZS \(\times\) PLW & 47.42 \(\pm\) 1.70 & 6.58 \(\pm\) 0.82 & 2.07 \({}^{\text{ab}}\)\(\pm\) 0.40 & 2.88 \({}^{\text{b}}\)\(\pm\) 0.36 & 23.57 \(\pm\) 0.75 & 6.41 \(\pm\) 0.12 \\ \(p\)-value & 0.384 & 0.0000 & 0.16 & 0.0051 & 0.658 & 0.248 \\ \hline \multicolumn{6}{c}{Gilts} \\ ZS & 46.11 \(\pm\) 4.78 & 8.34 \({}^{\text{a}}\)\(\pm\) 1.17 & 3.14 \({}^{\text{ab}}\)\(\pm\) 1.70 & 2.95 \({}^{\text{ab}}\)\(\pm\) 0.67 & 24.65 \(\pm\) 1.56 & 6.40 \(\pm\) 0.38 \\ ZS \(\times\) D & 46.91 \(\pm\) 3.48 & 6.42 \({}^{\text{b}}\)\(\pm\) 0.87 & 2.31 \({}^{\text{b}}\)\(\pm\) 0.94 & 3.53 \({}^{\text{b}}\)\(\pm\) 0.70 & 24.60 \(\pm\) 1.33 & 6.50 \(\pm\) 0.27 \\ (ZS \(\times\) ZS) \(\times\) D & 50.71 \(\pm\) 6.07 & 8.84 \({}^{\text{a}}\)\(\pm\) 1.58 & 4.99 \({}^{\text{a}}\)\(\pm\) 3.14 & 3.31 \({}^{\text{a}}\)\(\pm\) 1.59 & 25.73 \(\pm\) 1.12 & 6.01 \(\pm\) 0.32 \\ ZS \(\times\) PLW & 46.83 \(\pm\) 1.72 & 6.76 \({}^{\text{b}}\)\(\pm\) 0.55 & 2.27 \({}^{\text{b}}\)\(\pm\) 0.77 & 3.02 \({}^{\text{b}}\)\(\pm\) 0.27 & 25.08 \(\pm\) 1.03 & 6.41 \(\pm\) 0.37 \\ \(p\)-value & 0.501 & 0.0008 & 0.037 & 0.001 & 0.08 & 0.105 \\ \hline \multicolumn{6}{c}{Average for genetic} \\ groups and sex & 46.67 \(\pm\) 4.87 & 7.58 \(\pm\) 1.32 & 2.75 \(\pm\) 2.03 & 3.43 \(\pm\) 1.02 & 24.66 \(\pm\) 1.31 & 24.66 \(\pm\) 1.31 \\ \hline \multicolumn{6}{c}{x \(\pm\) SD—mean and standard deviation, mean values in the same columns designated by the different letters differ significantly at: \({}^{\text{a}}\)\({}^{\text{b}}\)\(-\)\(p\)\(\leq\) 0.05, ZS—Zlotnicka Spotted \(\times\) Zlotnicka Spotted; ZS \(\times\) D—Zlotnicka Spotted \(\times\) D—Zlotnicka Spotted \(\times\) Zlotnicka Spotted/Duroc; ZS \(\times\) PLW—Zlotnicka Spotted \(\times\) Polish Large White.} \\ \hline \hline \end{tabular}
\end{table} 
Table 4: Quality characteristics of raw meat _m. longissimus thoracis_.