Institute of Animal Science, Warsaw University of Life Sciences, Ciszewskiego 8, 02-786 Warsaw, Poland.
Institute of Genetics and Animal Biotechnology, Polish Academy of Science, Jastrzębiec, Postępu 36A, 05-552 Magdalenka, Poland.
Genes (Basel). 2024 Jun 27;15(7):843. doi: 10.3390/genes15070843.
This study involved 45 Holstein and 60 Holstein-Charolaise steers, tailored with specific diets according to breed and rearing systems. DNA genotyping was conducted for DGAT1, LEP, SCD1, SREBF1, and TG genes to investigate their impact on carcass conformation traits, beef quality traits, and sensory quality traits. The results showed associations between the genetic variants and the analyzed traits. Specifically, DGAT1 was found to affect drip loss, meat brightness, and color saturation. The TG gene was associated with marbling and meat color. LEP influenced trim fat and pH levels, while SCD1 was linked to metabolic energy live weight gains, and pH levels. SREBF1 was related to fatness.
本研究涉及 45 头荷斯坦牛和 60 头荷斯坦-夏洛来牛,根据品种和饲养系统定制了特定的饮食。对 DGAT1、LEP、SCD1、SREBF1 和 TG 基因进行 DNA 基因分型,以研究它们对胴体结构特性、牛肉质量特性和感官质量特性的影响。结果表明,遗传变异与分析的性状之间存在关联。具体而言,DGAT1 被发现影响滴水损失、肉亮度和颜色饱和度。TG 基因与大理石花纹和肉色有关。LEP 影响修剪脂肪和 pH 值,而 SCD1 与代谢能活体重增加和 pH 值有关。SREBF1 与肥胖有关。