循环水养殖系统培育日本鳗鲡和美洲鳗鲡苗种的研究  

Studies on fingerlings breeding of Anguilla japonica and Anguilla rastrata by recirculating aquaculture system

作　　者：徐继松[1] 关瑞章[1] 陈学豪[1] 赖晓健[1] 

机构地区：[1]集美大学水产学院,鳗鲡现代产业技术教育部工程研究中心,农业部东海海水健康养殖重点实验室,福建厦门361021

出　　处：《渔业现代化》2012年第3期23-27,45,共6页Fishery Modernization

基　　金：国家农业部公益性行业(农业)科研专项(nyhyzx07-043-03);福建省科技计划重点项目(2009J01033);福建省科技厅子课题(2009N2003-2);厦门市科技局项目(3502Z20103023);厦门市科技局项目(3502Z20113026);厦门市科技局项目(201112210002);国家科技人员服务企业项目(201101100005)

摘　　要：采用具有气泡反冲洗型珠子过滤器的循环水养殖系统对日本鳗鲡和美洲鳗鲡进行了苗种培育的研究。2种鳗苗的放养密度约为传统模式的8～10倍,试验期间换水量约为20%～45%。结果显示:日本鳗苗和美洲鳗苗成活率均≥96.74%,高于传统模式。投喂水丝蚓阶段,日本鳗苗特定生长率和饲料系数分别为(7.08±0.08)%/d和4.92±0.03,美洲鳗苗分别为(4.83±0.06)%/d和4.74±0.19。投喂配合饲料阶段,日本鳗苗分别为(2.30±0.19)%/d和1.30±0.02,美洲鳗苗分别为(1.69±0.05)%/d和1.76±0.06。研究表明,该循环水养殖系统可适用于日本鳗苗和美洲鳗苗的培育,并具有节能、减排和无药残等优点,为开发资源节约型和环境友好型的鳗鲡育苗模式提供参考。Anguilla japonica and A. rastrata fingerlings were bred by the recirculating aquaculture system which has the bubble bead filter. The stocking density of this experiment was 8-10 times more than the model of traditional culture. The quantity of the exchanged water was 20% -45% during the experimental period. The results showed that the survival rates of A. japonica and A. rastrata fingerlings were all above 96.74%, and higher than the model of traditional culture. The specific growth rates （SGR） and feed conversion ratioes （FCR） of A. japonica and A. rastrata fingerlings were （7.08±0.08 ）%/d and （4.83± 0.06）%/d, 4.92 ± 0.03 and 4.74 ±0.19, respectively, during the period of feeding Limnodrilus hoffmeisteri. The SGR and FCR of A. japonica and A. rastrata fingerlings were （ 2.30±0.19 ） %/d and （ 1.69 ±0.05 ） %/d, 1.30 ± 0.02 and 1.76±0.06, respectively, during the period of feeding compound diet. The results indicated that the re- circulating aquaculture system was suitable for the fingerlings breeding of A. japonica and A. rastrata. The fin, gerlings breeding of eel were energy-saving, emission reduction and non-residue by the recirculating aquacul- ture system. These results will provide an important reference for developing a new model of eel fingerlings breeding which is resource conservation and environment friendly.

关 键 词：日本鳗鲡 美洲鳗鲡 循环水养殖系统 鳗苗培育 

分 类 号：S962.3[农业科学—水产养殖]