Metoda zkrácené disekce pro stanovení podílu svaloviny v jatečném těle prasat.
Authors: J. Pulkrábek, J. Pavlík
Page: 55-57
English / Anglicky:
With regard to considerable labor consumption associated with full dissections of pig carcasses used for determination of lean meat proportion, the possibility to derive this percentage by dissecting only the main parts of carcass was analyzed. Totally 76 final hybrids representing common pig production in the CR were included into the analysis. Selection of animals and carcass analyses were similar to the method used for derivation of regression equations estimating carcass lean proportion. At first the left carcass sides were jointed into individual cuts in which lean proportions were determined and expressed as lean percentages from carcass weight. A total carcass lean proportion was calculated as the sum of lean percentages in different cuts. To examine the possibility to employ only data from partial dissections, the correlation coefficients (r) between lean proportion in carcass and lean proportions in different cuts were determined. The highest coefficients 0.93, 0.87, 0.70 and 0.63 were found for ham, loin, belly and shoulder, respectively. The correlation coefficient between carcass lean proportion and the sum of lean proportions from the mentioned cuts was 0.88. This result confirms the possibility to use only the full dissection of these four parts to predict carcass lean proportion.
Key-words: pig, lean meat, partial dissection
Czech / Česky:
With regard to considerable labor consumption associated with full dissections of pig carcasses used for determination of lean meat proportion, the possibility to derive this percentage by dissecting only the main parts of carcass was analyzed. Totally 76 final hybrids representing common pig production in the CR were included into the analysis. Selection of animals and carcass analyses were similar to the method used