摘要
[目的]研究不同投饲策略对"海南一号"罗非鱼生长及养殖水体的影响。[方法]设置A、B、C 3种投饲策略,研究其对池塘养殖期对池塘养殖"海南一号"罗非鱼生长及养殖水质的影响。[结果]在整个养殖期间,投饲策略A、B、C养殖罗非鱼的相对增重率分别为的51 935.34%、59 128.57%和56 793.98%,B投饲策略养殖池塘罗非鱼平均体重最大,达787.74 g/尾,比策略A和C塘分别提高13.82%和4.10%;B投饲策略养殖池塘罗非鱼的饲料能耗最低,比策略A和C分别降低19.39%和1.66%;各投饲策略池塘养殖水体富营养化程度从低到高依次为:策略B、策略C、策略A;各投饲策略池塘浮游植物种群多样性水平从高到低依次为策略B、策略A、策略C。[结论]投饲策略B(平均日投饲率1.89%,日投饲2次,每隔5 d停止投饲1 d)有利于实现池塘养殖罗非鱼较快生长并保持较好的养殖水环境。
Objective To research the effects of different feeding strategies on the Tilapia mossambica growth and aquaculture water.[Method] Three kinds (A,B,C) of feeding strategies were set.Effects of different feeding strategies on the water quality and growth of T.mossambica were researched.[Result] During the whole growth period,relative weight gains of aquaculture T.mossambica in feeding strategies (A,B,C) were 51 935.34%,59 128.57% and 56 793.98%,respectively.The average body weight of T.mossambica in strategy B was the maximum (787.74 g/tail),which enhanced by 13.82%and 4.10%compared with strategies A and C,respectively.Energy consumption of feed was the minimum in strategy B,which reduced by 19.39%and 1.66%compared with strategies A and C,respectively.Eutrophication degree of aquaculture water was in the order of B〈C〈A;Diversity level of phytoplancton population was in the order of B 〉A〉C.[Conclusion] Feeding strategy B (1.89%daily average feeding rate,feeding twice every day,stop feeding for 1 d after every 5 d) helps to realize the relatively rapid growth of tilapia and maintain relatively good water aquaculture environment .
出处
《安徽农业科学》
CAS
2016年第15期169-174,218,共7页
Journal of Anhui Agricultural Sciences
基金
国家现代农业技术体系广西罗非鱼创新团队建设项目(GXLFY-02)
广西科学研究与技术开发计划项目(桂科重14121004-2-1)
关键词
投饲策略
罗非鱼
生长
水质状态
模糊综合评价
Feeding strategy
Tilapia mossambica
Growth
Water quality status
Fuzzy comprehensive assessment