日本长崎县率先在全国采用生物工程技术培育三倍体牙鲆并进行养殖,现已进入实用化。普通牙鲆上市需3年时间,而三倍体牙鲆上市却只需要2年。一般牙鲆的细胞染色体是二组,但三倍体由于物理、化学刺激具有三组染色体,失去生殖机能。并且营养成分都向生长方面转移,因此比普通牙鲆生长更快。 Nagasaki Prefecture, Japan took the lead in the adoption of bio-engineering technology to cultivate triploid Japanese flounder and breeding, has now entered the practical. Ordinary Japanese flounder listed for 3 years, while the triploid Japanese flounder market only takes 2 years. Common Japanese flounder cell chromosomes are two groups, but the triploid due to physical and chemical stimuli with three sets of chromosomes, loss of reproductive function. And nutrients are transferred to the growth, so grow faster than ordinary flounder.