Resumen de Body composition estimation in vivo and on the carcass of pigs raised on pastures
Patricia Silva, D. A. Campagna, D. Somenzini, Liliana Beatriz Maiztegui, R. J. Di Masso, M. T. Font
To compare the prediction of body composition in vivo and in slaughtered animals, a pig population with a broad genetical background, was used to determine the extent on which that prediction was affected by different characters (sex, slaughter body weight and lean percentage). Seventy-two barrows and 57 gilts were measured firstly ultrasonically (PigLog 105 - P) in vivo and then their carcasses were evaluated with a Fat-O-Meater apparatus (FOM) at the abattoir. Data were analysed by means of the Student t test for paired observations and subjected to linear correlation studies with the correlation coefficient. P and FOM measurements of lean percentage were positively and significantly associated (r = 0.68, P
