Stereotypies as quantitative trait that are affected by both multiple genetic loci and non-genetic factors may be controlled by the possible presence of one or more major genes.
行为规癖作为受多基因座位和非遗传因素共同作用的数量性状，不仅受微效多基因的影响，也可能受一个或几个主基因的影响。
Analyzing the main possible factors that affected the animal food consumption in rural area;
分析影响农户家庭动物性食品消费的因素；
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