渔业研究2017，Vol.39Issue(3)：195-201,7.DOI:10.14012/j.cnki.fjsc.2017.03.005
使用生态基对室内养殖系统中杂交太阳鱼生长及养殖水环境的影响
Effects of eco-substrates on the growth and culture environment of hybrid sunfish(Lepomis macrochius ♀×Lepomis cyanellus ♂)cultured in indoor system
摘要
Abstract
In the present paper,we studied the effects of the different densities of ecological substrates on the growth and water quality of the hybrid sunfish(Lepomis macrochius ♀×Lepomis cyanellus ♂)cultured in indoor system,which was produced by the hybridization between the two sunfish introduced from North American.In the present experiment,we set up a total of 0.049,0.098,0.197,0.295 and 0.393 m2/m3 in five different ecological substrates density gradient used in the sunfish culture system,and a group of none ecological substrates used as the control group,each group set 3 repetitions,a total of 18 aquaculture barrels used in the experiment.We used nanometer bottom aerator to increase oxygen during the experiment,and didn`t exchage the water during the whole culture period,monitored the water dissolved oxygen(DO),pH and water temperature(Wt)every day,monitored the total ammonia(TAN)and nitrite nitrogen(NO-2-N)content of the water every 5 days,and measured the growth index of the cultured sunfish at the beginning and the end of the experiment.The experimental results showed that the use of ecological substrates could effectively promote the growth of hybrid sunfish,reduce the feed coefficient,and improve the quality of aquaculture water,and compared with the control group,the average total ammonia nitrogen concentration could be reduced by 24.15%.Through the regression analysis,it was found that the suitable density of the ecological substrates in the hybrid sunfish culture is no less than 0.244 m2/m3.关键词
生态基/杂交太阳鱼/生长/水质/适宜使用量Key words
eco-substrates/hybrid sunfish(Lepomis macrochius ♀×Lepomis cyanellus ♂)/growth/water quality/suitable density分类
农业科技引用本文复制引用
戴杨鑫,王宇希,戴瑜来,马恒甲,冯晓宇..使用生态基对室内养殖系统中杂交太阳鱼生长及养殖水环境的影响[J].渔业研究,2017,39(3):195-201,7.基金项目
杭州市科委重大创新项目(20142012A53) （20142012A53）
现代农业产业技术体系建设专项资金资助(CARS-46). （CARS-46）
