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首次以黑龙江特产大型鱼类怀头鲶(Silurs soldatoui D.)为母本、鲶鱼(Parasilurus L.)为父本进行远源杂交,获得具有优良经济性状的杂交鲶鱼。研究结果表明:该鱼表现出怀头鲶的生长快速及鲶鱼的肉质细嫩等遗传性状。当年鱼苗经驯养(100d龄)平均体重达1kg以上,肌肉的主要营养指标均高于亲本,特别是高度不饱和脂肪酸(EPA、DHA)的含量较高,作为开发新的健康食品前景广阔。该鱼克服了北方地区生长周期短的关键问题,同时对调整池塘产品结构具有
For the first time, the hybrid catfish with excellent economic traits was obtained by far-field hybridization with the male parent Silurus soldatoui D. and the catfish Parasilurus L. as the male parent. The results show that: the fish showed catfish fast growth and catfish succulent tender and other genetic traits. In the same year, the average body weight of domesticated fry (100 days old) was more than 1kg. The major nutritional indexes of muscle were higher than those of their parents. In particular, the content of highly unsaturated fatty acids (EPA and DHA) was high and their prospects for developing new healthy foods were promising. The fish overcome the short period of the northern region of the key issues, while adjusting the pond product structure has