Avilés C, Peña F, Polvillo O, Barahona M, Campo M M, Sañudo C, Juárez M, Horcada A, Alcalde M J, Molina A
MERAGEM Research Group, Veterinary Faculty, University of Cordoba, 14071 Cordoba, Spain.
MERAGEM Research Group, Veterinary Faculty, University of Cordoba, 14071 Cordoba, Spain.
Meat Sci. 2015 Sep;107:33-8. doi: 10.1016/j.meatsci.2015.04.005. Epub 2015 Apr 18.
The aim of this study was to assess the associations between the single nucleotide polymorphisms in CAPN1, CAST, DGAT1, FABP4, LEP, RORC and SCD1 genes and the sensory meat quality in an intensively fed commercial population (Charolais, Limousin and Retinta breed). This work carried out analyses on a common Spanish population and evaluated the association between the markers and sensory traits. A total of 161 bulls were allocated to two different feedlots with two different finishing diets. Steaks aged for 7 and 21 days were assessed by both untrained and trained sensory panels. A significant association and allelic substitution effect were observed for markers UoG-CAST, LEP: g.73C>T and SCD1: g.878T>C on different descriptors evaluated by a consumer panel (tenderness and overall acceptability). There are no precedents of these kinds of association studies in a Spanish commercial population. The study suggested that CAST, LEP and SCD1 genes have a potential effect on the different measurements of sensory meat quality.
本研究旨在评估钙蛋白酶1（CAPN1）、钙蛋白酶抑制蛋白（CAST）、二酰基甘油酰基转移酶1（DGAT1）、脂肪酸结合蛋白4（FABP4）、瘦素（LEP）、视黄酸受体相关孤儿受体C（RORC）和硬脂酰辅酶A去饱和酶1（SCD1）基因中的单核苷酸多态性与集约化饲养的商业牛群（夏洛莱牛、利木赞牛和雷廷塔牛品种）肉品感官质量之间的关联。这项研究针对西班牙普通牛群展开分析，并评估了这些标记与感官性状之间的关联。总共161头公牛被分配到两个不同的饲养场，采用两种不同的育肥日粮。未经训练和经过训练的感官评定小组对经过7天和21天成熟的牛排进行了评估。消费者评定小组评估的不同指标（嫩度和总体可接受性）上，标记UoG-CAST、LEP：g.73C>T和SCD1：g.878T>C存在显著关联和等位基因替代效应。在西班牙商业牛群中，尚无此类关联研究的先例。该研究表明，CAST、LEP和SCD1基因对肉品感官质量的不同测定指标具有潜在影响。
