The effect of various slaughtering age options on the quality characteristics of subcutaneous backfat layers from Iberian x Duroc crossbred pigs under Montanera system was assessed. Three batches (IBxD16, IBxD14 and IBxD12) were established to start the Montanera with 14, 12 and 10 months of age and similar weight. After slaughter at 16, 14 and 12 months respectively, a piece of backfat was taken from each animal, and subsequently separated into outer, inner and subinner layers, and quality traits were performed in each one separately. Higher C18:1 n-9, MUFA, α- and γ-tocopherol were found in animals slaughtered with 16 months in the subinner backfat, which might be suitable to Iberian slaughtering age traceability. Lightness and redness varied with the age of the animal, for which showed an inverse pattern, and backfat layer, while yellowness only according to the latter.

评估了不同屠宰年龄选项对蒙塔内拉系统下伊比利亚x杜洛克杂交猪皮下背脂层质量特性的影响。建立了三个批次（IBxD16，IBxD14和IBxD12）以启动Montanera分别具有14、12和10个月大的体重。分别在16、14和12个月处死后，从每只动物身上取一块背脂，然后分成外层，内层和亚内层，并分别对每只动物进行品质性状分析。在亚内背脂肪中屠宰16个月的动物中发现较高的C18：1 n-9，MUFA，α-和γ-生育酚，这可能适合伊比利亚屠宰年龄的可追溯性。亮度和红色随动物的年龄而变化，为此表现出相反的模式和背脂层，而黄色仅根据后者而变。