Predição de características quantitativas de carcaças de suínos pela técnica de ultra-sonografia em tempo real

ABSTRACT - Forty-eight female pigs were used to determine the commercial cut yields after slaughter of the animals at 50, 60, 70, 80,90, 100, 110 and 120 kg and dissection of the carcasses. Life ultrasonic measures were taken to measure the longissimus muscle area and forbackfat thickness. The predictors used to estimate the lean meat yield were backfat thickness and longissimus muscle area. Bes ides the measuresmade in the different cuts, as ham cut weight, ham muscle weight, palette muscle weight, and carre muscle weight and pantry mus cle weight.Additionally, the data of the total carcass muscle weight, total carcass fat weight, total carcass bone weight and total carcas s skin weight, werealso used. Prediction equations were developed using simple and multiple linear regressions using the logistic model from the d issection dataand from the live ultrasonic measure data. Prediction equations were developed through out simple and multiple linear regressio ns using a logisticmodel from the dissection and live measures made by real-time ultrasound technology data. The prediction equation to determine the amountsthe main components of the meat pork cuts presented a great adjustment, with R