养殖密度和投饵策略对罗氏沼虾幼体生长发育的影响  

Influences of Breeding Density and Bait-casting Strategy on Growth and Development of Macrobrachium rosenbergii Larvae

作　　者：陈建酬[1] 高腾 张济培[1] 杨树浩 

机构地区：[1]佛山科学技术学院生命科学与工程学院,广东佛山528231 [2]广东省清远市水产技术推广站,广东清远511515

出　　处：《江西农业学报》2017年第1期92-95,101,共5页Acta Agriculturae Jiangxi

基　　金：广东省科技计划项目(2013B020502003);广东省佛山市科技创新专项基金项目(2014AG10022)

摘　　要：以罗氏沼虾幼体为研究对象,研究了60、110、160、210尾/L共4种养殖密度和2种不同投饵策略组合而成的8种养殖模式对罗氏沼虾幼体生长发育的影响。结果表明,罗氏沼虾幼体适宜的养殖密度为110~160尾/L;在养殖密度和投饵总量不变的情况下,投饵6次/d比投饵3次/d培育出的幼体存活率更高、变态发育时间更短。The larvae of Macrobrachium rosenbergii were taken as research objects, eight breeding patterns which consisted of 4 breeding densities （60, 110, 160 and 210 larva/L） and 2 bait-casting strategies were designed, and the influences of different breeding patterns on the growth and development of this shrimp were studied. The results showed that： the appropriate breeding density of Macrobrachium rosenbergii larvae was 110- 160 larva/L; under the conditions of constant breeding density and total bait -casting quantity, the larvae fed 6 times/d had higher survival rate and shorter metamorphic development time than those fed 3 times/d.

关 键 词：罗氏沼虾 幼体 密度 投饵策略 

分 类 号：S968.22[农业科学—水产养殖]