These results preliminarily showed that the PRLR gene is either a major gene that influences the prolificacy of Jining Grey goats or a molecular marker in close linkage with such a gene.

• 研究结果初步表明: PRLR基因可能是控制济宁青山羊多胎性能的一个主效基因或是与之存在紧密遗传连锁的一个标记。