摘要
2002年5月～8月在室内工业化养殖温室内进行了高密度封闭循环水养殖凡纳滨对虾(Litopenaeusvannamei)试验,采用人工配制海水(盐度为4),养殖排放水经过滤、消毒、增氧处理后循环利用,日添加新水量为总循环水量的3%～7%。经86d养殖,对虾体重从(0.3±0.04)g/尾增加到(10.40±2.04)g/尾,平均产量为5.85kg/m3,饵料系数为1.76,成活率为67%,该封闭循环养殖系统设计合理,每m3水体放养约1029尾对虾较适宜。
<Abstrcat> A high density closed-recirculating prawn breeding system was constructed and evaluated during an (86-day) growing period in which Litopenaeus vannamei were raised from fingerling to market size. The average (bogy) weight increased from (0.3±0.04)g to (10.40±2.04)g. The average yield was 5.85 kg/m3 and (5~10) times higher than that by pond culture. The food conversion ratio(FCR) was 1.76. The survial rate was 67%. During the experiment, the water quality in the recirculating system was stable. There were little daily variations of main water parameters. The average water temperature was(28.39±1.26)℃. The pH value was stable on (7.9)±0.14. The dissolved oxygen was (7.27±1.36)mg/L. The ammonia-N and COD were (0.356±0.180)mg/L, (6.57±0.39)mg/L, respectively. The results demonstrated that the recirculating system could be used for (L.vannmei) culture and the approprite breeding density for the production of prawn was 1029 ind/m3.
出处
《农业工程学报》
EI
CAS
CSCD
北大核心
2005年第6期122-125,共4页
Transactions of the Chinese Society of Agricultural Engineering
基金
中国科学院知识创新工程项目(KZCX2-SW-211
L400223108)
国家"863"项目(2001AA620104
2003AA603140)
关键词
封闭循环养殖系统
对虾
养殖密度
水质
closed-recirculating breeding system
prawn
approprite breeding density
water quality
