Effect of intensive selection and nutrition on fattening performance and carcass value of hybrid pigs
1995
Demo, P. | Poltarsky, J. (Vyskumny Ustav Zivocisnej Vyroby, Nitra (Slovak Republic)) | Balaz, Z.
Experiments were focused on analysis of fattening performance, carcass value and meat quality in new-bred hybrid crosses in the conditions of Slovakia. The hybrids received three kinds of feed mixes with different contents of digestible protein substances (11.1, 13.9 and 15.2 %), lysine (0.57, 0.73 and 0.85 %) and energy (12.7, 12.9 and 13.1 IU ME). The new-bred hybrids receiving the different feed mixes showed the following figures: percentage of lean cuts amounting to 49.58, 50.92 and 51.55, respectively, percentage of meat from ham 19.92, 20.40 and 20.56, resp., percentage of meat from ham and loin 30.05, 31.20 and 31.28, resp. and eye-muscle area 39.61, 40.14 and 40.19 cm2, resp., The percentage of lean meat content ante mortem and/or post mortem was 55.27 and/or 56.85, the percentage of fatty parts in the weight of the side of pork amounted to 16.68, 14.93 and 14.46 resp. Production indicators showed daily weight gains ranging from 697 to 752 g and feed conversion per 1 kg weight gain 3.28 to 3.39 kg. As for meat quality, the percentage of PSE meat was not higher than 10 % in the new-bred hybrid cross.
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