畜禽肌内脂肪相关基因的研究进展

摘要

肉质是肉用畜禽的重要经济指标，肌内脂肪含量是影响肉质指标如嫩度、多汁性和风味的重要因素。肌内脂肪的沉积是一个复杂的生理生化过程，这一过程受到新城代谢酶和肌肉生长及脂肪沉积的功能基因的调控。一些基因被证实是影响肌内脂肪的候选基因。心脏脂肪酸结合蛋白基因（H-FABP）、脂肪细胞脂肪酸结合蛋白（A-FABP）、脂蛋白脂酶（LPL）、生肌决定基因5（MFY5）和瘦素受体（LEPR）等基因是影响肌内脂肪的候选基因。%Meat quality is an important economic trait in livestock and poultry .IMF content is an important determinant of meat quality characteristics such as tenderness , juiciness and flavor. IMF deposition was a complicated physiological and biochemical process which is regulated by metabolic enzymes and controlled by functional genes in the growth and development process of muscle and adipose tissue. Some genes influencing IMF had been studied, including H-FABP gene, A-FABP gene , LPL gene,MFY5 and LEPR gene .