Rendimentos dos cortes e não-componentes das carcaças de cordeiros terminados com dietas contendo diferentes fontes de óleo vegetal

This work aimed to evaluate dressing of cuts and non-carcass components in Santa Ines and ½ Dorset ½ Santa Ines lambs fed with diets of different vegetal oil sources (soybean oil, canola oil and linseed oil) and a control diet (without vegetal oil). After slaughter there was the collection and weighing of the blood, skin, whole gastrointestinal tract (esophagus + stomachs + small and large intestines with their contents), empty gastrointestinal tract (esophagus + stomachs + small and large intestines previously emptied and cleaned), reproductive system + bladder, spleen, liver, heart, respiratory system with trachea, kidney with fat, head, feet and tail for determination of yield in relation of slaughter live weight. After 24 hours in cold chamber, chilled carcass was weighed and longitudinally ssplit, being the left side sectioned in seven anatomical parts: legs, chump, shoulder, fluctuant rips, real rips, bottoms and neck. The study of non-carcass components showed how the weights of skin (8.74%) and gastrointestinal tract (10.65%) are important in dressing determination. Cut percentages were not affected (p>0.05) by different diets and genetic groups evaluated in this study.