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在对栉孔扇贝中国养殖种群(CC)、中国野生种群(CW)和俄罗斯种群(RW)及其3 种杂交种群早期(2,3,4月龄)生长发育研究的基础上进行了各种群的中期(6,8,10,12 月龄)生长发育测定比较研究,结果表明,3个亲本群体各个性状的中期生长性能表现以中国养殖种群最好;3个杂交组合的杂种群体各个性状的中期生长性能均高于纯种亲本种群,杂种优势均较大,其范围在3%~52%,以CC♀×RW♂杂交效果最好;壳长、壳宽、壳高、活体重在4 个生长发育指标中期的4 个阶段均表现出不同程度的杂种优势,杂种优势在性状间存在明显差别,体重的杂种优势远大于壳宽、壳长和壳高的,变化趋势为体重大于壳宽,壳宽大于壳长,壳长大于壳高;季节性变化因素对栉孔扇贝各个性状的生长速度影响非常大,6~8月龄处于冬季最寒冷的时间(11月份至翌年3 月份),扇贝越冬期间仅能维持生命,生长率接近于0,温暖季节如6月龄(11月)以前和8 月龄(3 月份)以后各性状的生长速度提高幅度很大.
Based on the studies of the growth and development of the Chinese cultured population (CC), the Chinese wild population (CW) and the Russian population (RW) and their three hybrid populations in the early (two, three and four months) of the Chlamys farreri, The results showed that the mid-term growth performance of each trait of three parents groups was the best in China, and the traits of the hybrids in the three cross combinations The medium-term growth performance was higher than that of the pure parental parent population, and the heterosis was large with the range of 3% -52%. The hybridization with CC ♀ × RW♂ had the best hybridization performance. The shell length, shell width, Four stages of growth and development showed different degrees of heterosis in the middle stage. There was a significant difference in heterosis between the traits. The heterosis of body weight was much larger than the shell width, shell length and shell height, Width and shell width are larger than shell length and shell length is larger than shell height. The seasonal variation has a great effect on the growth rate of each trait of chlamys farreri. The 6-8 month old is in the coldest time in winter (from November to March) , Scallops only survive during wintering, the growth rate close to 0, warm Season as 6 months of age (November) and before 8 months of age (March) after each trait of great magnitude faster growth.