Composição dos ácidos graxos e teor de colesterol da carne de ovinos pantaneiros

Abstract

This study aimed to evaluate the profile of fatty acids loin (Longissimus thoracis) in different categories of sheep "Pantaneiro". 29 sheep were used, with 11 not castrated, nine castrated lambs and nine ewe disposal. The lambs were weaned and feedlot finished. Castrated lambs were fed on pasture, Cynodon spp. CV. Tifton supplementation and culling ewes were also fed pasture Brachiaria brizantha. Piatã with access to mineral. The animals presented for slaughter age average of 6,2, 12,5 and 68 months, respectively. The slaughter of lambs and lambs was defined by body condition, being conducted with body condition between 2.5 to 3.0. Have the ewe were slaughtered in conditions that were at the time of disposal, held on the basis of pregnancy diagnosis. After slaughter and cooling for 24 h at 4 ° C, carcasses were divided into retail cuts, and then removed the loin for chemical analyzes. Data were analyzed using a mathematical model (Y ij = μ + ai + j (i) + ij), and the variables by the Bonferroni test. Categories differed in composition of saturated fatty acids of the loin, where the sheep had higher percentages. In relation ω6 / ω3 the three categories were within recommended for human health. The cholesterol content was found to lower the category of ewe. The category of lambs showed the best results on the composition of unsaturated fatty acids, thus demonstrating to be a better meat nutritional quality.