The objective of the research performed was to determine the slaughter value and some physicalchemical parameters of m.biceps femoris (pH, colour in the CIE L*a*b* system, drip loss, thermal shrinkage). The research material comprised 61 Californian rabbits and 17 White New Zealand rabbits aged 110 days and originating from the same animal breeding farm. After the completed fattening, the rabbits were slaughtered. A slaughter analysis was performed and a dressing yield was calculated pursuant to the systems assumed. The carcasses were chilled, weighed, and technological division was made. Then, the m.biceps femoris muscle samples were taken for a physical-chemical analysis. It was proved that the dressing yield of the Californian rabbits was by 2.05 % and 1.58 %, respectively, higher than of the White New Zealand rabbits. No statistically significant differences were found between the mean values of muscle tissue acidity measured 45 minutes and 24 hours post mortem. The statistically significant differences were found between the mean values of drip loss and thermal shrinkage of the muscles of the experimental groups analyzed. The Biceps femoris muscles of the New Zealand White rabbits were characterized by a higher per cent content of red colour component, and this fact was proved statistically.
rabbit, slaughter value, dressing yield, physical-chemical properties