黄颡鱼二、三倍体幼鱼生长性能的比较研究

Journal of Yangtze University(Natural Science Edition)(2012)

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Abstract
为了探讨黄颡鱼(Pelteobagrus fulvidraco)二、三倍体幼鱼的生长差异,定期测定了在相同养殖条件下两者体长、体重的变化情况.结果表明:经过2个月的养殖,黄顙鱼二倍体幼鱼从初始值(体重(3.89±1.01)g,体长(7.35±0.50)cm)增长至体重(9.89±3.94)g、体长(9.71±1.42) cm,消耗饲料132.7g,饵料系数1.11;黄顙鱼三倍体幼鱼从初始值(体重(3.63±0.83)g,体长(7.21±0.38)cm)增长至体重(9.61±3.20)g、体长(9.80±1.23)cm,消耗饲料135.79g,饵料系数1.18.三倍体黄顙鱼比二倍体增重率、特定生长率稍高,体长增长率及体长特定生长率偏高,饵料系数略高,但各生长指标差异不显著(P>0.05).
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Key words
diploid,triploid,Pseudobagrus fulvidraco,growth
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