在西班牙,在过去的几年里,羔羊的消费量有所下降。增加农民收入,我们研究了贫瘠母羊的营养质量,与传统的羔羊肉和10只贫瘠母羊相比,10只雄性羔羊,和10只来自美利奴羊的雌性羔羊。我们测量了皮下脂肪,肌肉颜色,和屠体组织组成,以及近端成分,矿物,生育酚,视黄醇,叶黄素,和胆固醇含量,和TPA纹理轮廓,脂肪酸谱,和肉的脂质氧化。动物类型没有影响(雄性,女性,和母羊)的pH值,以及皮下脂肪颜色的差异,脂质氧化,从实际的角度来看,纹理是无关紧要的。三组动物的组织组成反映了高比例的可售肉,在任何一组中都不会因过度育肥而受到处罚。母羊肉呈现较高的水分百分比,胶原蛋白,灰,钙,铁,α-生育酚,和视黄醇比羔羊肉。此外,它有较高的DHA和CLA的含量和较低的值的比值n6/n3,这对健康是有益的,虽然它也含有更多的脂肪,饱和脂肪酸,和胆固醇比羔羊肉。
In Spain, lamb consumption has decreased over the last few years. To increase farmers\' income, we studied the nutritional quality of the barren ewes\' meat in comparison to traditional lambs\' meat with 10 barren ewes, 10 male lambs, and 10 female lambs from the Merino breed. We measured the subcutaneous fat, muscle color, and carcass tissue composition, as well as proximal composition, mineral, tocopherol, retinol, lutein, and cholesterol contents, and the TPA texture profile, fatty acid profile, and lipid oxidation of the meat. There was no effect of the animal type (males, females, and ewes) on the pH, and the differences in the subcutaneous fat color, lipid oxidation, and texture were irrelevant from a practical point of view. The tissue composition in the three groups of animals reflected a high percentage of saleable meat, with no penalty incurred for intensive fattening in any of the groups. The ewes\' meat presented a higher percentage of moisture, collagen, ash, calcium, iron, α-tocopherol, and retinol than the lambs\' meat. In addition, it had higher content of DHA and CLA and lower values for the ratio n6/n3, which is beneficial for health, although it also contained more fat, saturated fatty acids, and cholesterol than the lambs\' meat.