ÉTUDE DE LA RÉPARTITION TOPOGRAPHIQUE DE LA MYOPATHIE EXSUDATIVE ET DÉPIGMENTAIRE DU PORC

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Abstract
Thirty half-carcasses of Large White pigs killed at 100 [plus or minus] 5 kg liveweight were dissected the day after slaughter. For each half-carcass pH, percentage reflectance and water holding capacity were estimated in 51 samples representing 45 muscles. The samples were classed in relation to each of the characteristics measured. There was a certain similarity for those muscles at the top of the lists. That shows that certain muscles consistently have a lower final pH, a high index of reflectance and a low capacity for retention of water. Moreover, in those muscles variation in the characteristics measured is greater. They are thus the best to consider when measurement of these characteristics is used for an objective assessment of the quality of the meat. An examination of the weight distribution of the muscles of a half-carcass classed according to their capacity to retain water, corresponding to meats of different quality, shows the magnitude of the economic consequences of the disorder, particularly since the muscles most affected belong to the carcass cuts with the higher commercial values.

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