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对大耳白兔种群６个主要繁殖性状的表型分布特点进行了考察，并探讨留种率为２０％时偏态对各性状的实际选择强度的影响及引起表型偏态的可能原因。结果表明，所有性状的表型频率分布均为单峰曲线。初生个体重表现为极显著的正偏斜，产仔数、初生窝重、离乳个体重三性状则为不显著的负偏斜，离乳成活数、离乳窝重表现为极显著的负偏斜。表现为负峰度的两个性伏是产仔数和离乳个体重，其余则为负正峰度。除初生个体重外，其余５个性状的实际选择强度均低于理论选择强度，是导致实际选择反应效率低的一个重要原因，表明表型分布偏态存在于家兔的主要繁殖性状。
The phenotypic distribution of six major reproductive traits in large white rabbit population was investigated. The effect of skewness on the actual selection intensity of all traits and the possible causes of phenotypic deviation were investigated. The results showed that phenotypic frequency distribution of all traits were unimodal curves. Newborn individuals showed extremely significant positive skewness, litter size, newborn litter weight, and three individual offspring weight traits with insignificant negative skewness, aspartate survival, and very significant loss from the litter box Skewed. Negative kurtosis of the two sex volts is the number of litters and individual weight of milk, the rest is negative positive kurtosis. The actual selection intensities of all the five traits, except for the newborns, were lower than the theoretical ones, which was an important reason for the low efficiency of the actual selection reaction. It indicated that the skewed phenotype existed in the main reproductive traits of rabbits.