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由人工诱导的异源四倍体白鲫雄鱼与正常的二倍体白鲫雌鱼交配获得的异源三倍体白鲫,其主要生物学特性同二倍体白鲫进行比较研究表明,三倍体白鲫具有体形较大、相对体高和相对尾柄高较高、侧线上下鳞数目较多的形态特征,仍保留着二倍体白鲫以浮游植物为主的植食性营养方式,雌雄均不育,比二倍体生长快,网箱养殖112天后,体重比二倍体平均增加32.38%。试验证实三倍体白鲫是一个具有养殖生产前景的新对象。
The main biological characteristics of the allotriploid white crucian carp, obtained from the cross-breeding of the allotetraploid white crucian carp and the normal diploid white crucian carp, were compared with the diploid white crucian carp, Triploid white carp has the shape of a larger body, relative height and relative caudal height, more lateral top and bottom scale morphological features, still retains the diploid white carp phytoplankton mainly phytophagous nutrition, male and female Were sterile, faster than diploid growth, cage culture 112 days, the average weight increase than diploid 32.38%. Experiments confirmed that triploid white carp is a new target of breeding production prospects.