CARCASS AND MEAT QUALITY OF Z ŁOTNICKA S POTTED PIGS IN COMPARISON TO POLISH LARGE WHITE X P OLISH L ANDRACE CROSSBRED PIGS

The experiment was carried out on 32 purebred Zlotnicka Spotted pigs and 20 crossbreds Polish Large White x Polish Landrace. Rearing and feeding were similar for all animals. Zlotnicka Spotted fatteners were slaughtered at about 107 kg live body weight however crossbred pigs at about 119 kg live body weight according to the meat industry standards. Meat physico3chemical traits were determined in the longissimus lumborum (LL) muscle. The determined meat characteristics covered the pH 1 and pH u records, visual assessment of colour and exudation on fresh meat samples, drip loss, colorimeter Minolta measurements of lightness (L), a*, b* values and tenderness. Significance of differences (Duncan’s test) between groups was identified using STATISTICA 8.0 PL packet. Zlotnicka Spotted pigs showed lower body weight at slaughter and cold carcass weight (107.09 kg and 77.28 kg) than pigs from F 1 group (119.80 kg and 89.93 kg); P≤0.01. Carcass fatness as determined by mean backfat thicknes was smaller in crossbred pigs (2.01 cm) than in purebred fatteners (2.75 cm); P≤0.01. Zlotnicka Spotted pig’s meat showed a lower drip loss (P≤0.01), darker and more desirable colour (P≤0.01). Values of the all analysed traits were within ranges characterizing good meat quality of Zlotnicka Spotted pigs.