摘要为积累拉氏成鱼养殖技术资料，于2013年在辽宁省铁岭县范家屯水库渔场面积为0．53 hm2的池塘进行了拉氏主养试验。4月20日放养7．6万尾平均体质量11．2 g的拉氏苗种，搭配500尾鲢鱼（平均体质量100 g ），750尾鳙鱼（平均体质量150 g ），投喂鲤鱼颗粒饲料，池中配备3．0 kW增氧机1台；饲养结果表明，经161 d饲养，出塘拉氏商品鱼3350．1 kg （平均体质量46．4 g ），成活率达95％，鲢鱼490 kg （平均体质量980 g ），鳙鱼1050 kg （平均体质量1400 g ），吃食鱼饲料系数为2．1；养殖期间，体质量（m）和全长（ L ）生长方程分别为：m＝－0．0012 t2＋0．4286 t ＋10．574（r2＝0．6684）、L ＝0．0006 t2－0．0169 t ＋11．343（r2＝0．6623）；体质量与全长的相关方程为 m＝0．0033 L3．4673（r2＝0．9117）。
Abstract：A fat minnow Phoxinus lagowskii culture trail was carried out in a 0 .53 hm2 pond in a fish farm in Tieling City ,Liaoning province ,in 2013 .Fat minnow juveniles with initial body weight of 11 .2 g was reared at a rate of 143 thousands individuals per hm2 ,aerating by a power of a 3 .0 kW aerator and by feed‐ing formulated feed for common carp (Cyprinus carpio) and polycultured with silver carp Hypophthal‐michthys molitrix with initial body weight of 100 g at a rate of 943 individuals per hm2 and bighead carp A ristichthys nobilis with initial body weight of 150 g at a rate of 1415 individuals per hm2 for 161 d .Total yield was harvested ,including 3350 kg of fat minnow with body weight of 46 .4 g ,a survival rate of 95% , and food conversion ratio of 2 .1 ,490 kg of silver carp with body weight of 980 g and 1050 kg of bighead carp with body weight of 1400 g .The appropriate equation was expressed for body weight (m) as m=-0 .0012t2 + 0 .4286 t+10 .574(r2 = 0 .6684) and for total length (L) as L = 0 .0006 t2 - 0 .0169 t +11 .343(r2 = 0 .6623) . The relationship between total length and body weight was described as m=0 .0033 L3 .4673 (r2 =0 .9117 ) .
收稿日期: 2014-12-25
引用本文:
金广海,杨培民,骆小年,刘义新,李军. 池塘主养食用拉氏试验[J]. 水产科学, 2014, (12): 840-843.
JIN Guang-hai,YANG Pei-min,LUO Xiao-nian,LIU Yi-xin,LI Jun. Fat Minnow Phoxinus lagowskii Was Cultured in a Pond. Fisheries Science, 2014, (12): 840-843.
