人工养殖条件下麦穗鱼的生长特性

Chinese Agricultural Science Bulletin(2017)

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Abstract
分析麦穗鱼(Pseudorasbora parva)在人工养殖条件下的生长特性,为麦穗鱼养殖提供参考依据.2016年3-11月,于室外水泥池中开展了麦穗鱼养殖试验,分别测量其体重、体长和全长指标,进行生长特性分析.经180天的养殖,麦穗鱼平均全长达到3.96 cm,平均体长达到3.23 cm,平均体重达到0.49 g.特定生长率、日均增量和肥满度均受水温影响变化明显.体长(Ls)与全长(Lr)之间存在线性回归关系:Lr=1.0589LB+0.767 (R2=0.8628),体长与体重(W)的回归方程为:W=0.0466LB2.1623 (R2=0.8306).麦穗鱼体长的变异系数范围为6%~14%,体重的变异系数范围为20%~41%,肥满度在1.45~5.31之间变动.综上所述,麦穗鱼在室外水泥池中生长效果良好,适宜进行规模化人工养殖.
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Key words
concrete pond,growth characteristics,artificial culture,Pseudorasbora parva
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