Improvement of muscle growth and meat quality, quantitative traits both controlled by multigenes, is always one of the main goals for livestockgenetics and breeding.
肌肉生长与肌肉品质性状的改良一直是家畜育种工作的主要目标之一，二者均属于多基因控制的数量性状。
2
Suboptimal use of production potential (animal species, genetics, livestock practices).