Body composition estimation in vivo and on the carcass of pigs raised on pastures

• P. S. Silva ^[1] ; D. A. Campagna ^[1] ; D. Somenzini ^[1] ; Liliana B Maiztegui ^[1] ; R. J. Di Masso ^[1] ; M. T. Font ^[1]
  1. [1] Universidad Nacional de Rosario

     Universidad Nacional de Rosario

     Argentina

     
• Localización: Archivos Latinoamericanos de Producción Animal, ISSN 1022-1301, ISSN-e 1022-1301, Vol. 10, Nº. 1, 2002
• Idioma: inglés
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• Resumen

  • 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