Napolitano F, Cifuni G F, Pacelli C, Riviezzi A M, Girolami A
Dipartimento di Scienze delle Produzioni animali, Università degli Studi della Basilicata, Via N. Sauro 85, 85100 Potenza, Italy.
Meat Sci. 2002 Mar;60(3):307-15. doi: 10.1016/s0309-1740(01)00140-1.
Twenty male Comisana lambs were equally divided into two groups. Ten subjects were artificially reared, 10 others were ewe reared and used as control. Unseparated control animals displayed increased cellular immune response to a percutaneous injection of phytohemagglutinin (P<0.001). During the open field test, ewe-reared lambs showed a higher number of flight attempts (P<0.01). Carcass yield were higher for artificially reared animals (P<0.05). Conversely, legs of ewe-reared animals had significantly more fat (P<0.05) and a higher content of saturated fatty acids (P<0.001). Polyunsaturated fatty acid content was higher in artificially reared lamb meat (P<0.01), although the ratio n-6/n-3 was well above the recommended values. The triangle test showed a significant difference in sensory analysis between the two products (P<0.05). Finally, for both rearing systems legs without subcutaneous fat showed a higher percentage of polyunsaturated fatty acids and a corresponding lower content of saturated fatty acids (P<0.001).
二十只雄性科米萨纳羔羊被平均分为两组。十只羔羊采用人工饲养，另外十只由母羊抚养作为对照。未分开饲养的对照动物对经皮注射植物血凝素的细胞免疫反应增强（P<0.001）。在旷场试验中，由母羊抚养的羔羊表现出更多的逃跑尝试次数（P<0.01）。人工饲养的动物胴体产量更高（P<0.05）。相反，由母羊抚养的动物腿部脂肪明显更多（P<0.05），饱和脂肪酸含量更高（P<0.001）。人工饲养的羊肉中多不饱和脂肪酸含量更高（P<0.01），尽管n-6/n-3比值远高于推荐值。三角试验表明两种产品在感官分析上存在显著差异（P<0.05）。最后，对于两种饲养系统，没有皮下脂肪的腿部多不饱和脂肪酸百分比更高，饱和脂肪酸含量相应更低（P<0.001）。
