高位池精养斑节对虾(Penaeus monodon)的生长规律

Growth Pattern of Penaeus monodon Cultured in High level Intensive Pond

通过对高位池养殖的斑节对虾体长和体质量的跟踪测量,研究了其生长特性及规律,结果表明,斑节对虾体长和体质量呈幂函数关系:W=9.613×10-6L3.069,b接近于3,呈等速生长;其生长分为3个时期:快速生长期30～70日龄、稳定生长期70～110日龄、110日龄后为生长缓慢期;生长早、中期(50～90日龄)肥满度逐渐升高(1.33～1.45),趋势显著,此后呈下降趋势(1.44～1.38);拟合出斑节对虾的von Bertal-lanffy生长方程:Lt=141.503[1-e-0.009 8(t-0.224 5)],Wt=38.332[1-e-0.009 8(t-0.224 5)]3.069,体质量生长拐点出现在114.6 d.

Based on the data of body length and weight,the growth characteristics and rules of high level intensive pond cultured Penaeus monodon were studied.The results indicated： the relationship of body length and weight could be described by the power function： W=9.613×10-6L3.069,b was close to 3,and which means an isometric growth;there were three stages in its growth,fast growth stage（30-70 d）,steady growth stage（70-110 d）,and aging growth stage（after 110 d）;the condition factor was gradually increased significantly during early and middle growth stage（1.33-1.45）,and gradually decreased（1.44-1.38）;the von Bertallanffy equations were as follows： Lt=141.503 [1-e-0.009 8（t-0.224 5）],Wt=38.332 [1-e-0.009 8（t-0.224 5）]3.069,and the inflection point of body weight growth was about 114.6 days.