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将罗氏沼虾、尼罗罗非鱼单养与混养进行了生长比较,每种养殖方式设3个重复。单养罗氏沼虾放养密度为7只/m2,单养尼罗罗非鱼放养密度1尾/m2。混养密度为罗氏沼虾7只/m2和罗非鱼1尾/m2。罗氏沼虾放养规格为_1～1.3g/尾,尼罗罗非鱼放养规格7～8g/尾,养殖5个月捕获。结果表明:罗非鱼单养和混养产量与平均个体重无显著性差异,总产量分别为2952kg/hm2和2779kg/hm2,平均个体重分别为350g/尾和334g/尾。罗氏沼虾单养与混养产量分别为1377kg/hm2和961kg/hm2,平均个体重分别为56g/只和32g/只。鱼虾混养总产量为3730kg/hm2,比单养鱼或虾增产。
Macrobrachium rosenbergii, Nile tilapia monoculture and polyculture were compared growth, each breeding method set three repeats. Monoculture of Macrobrachium rosenbergii stocking density of 7 / m2, single feeding Nile tilapia stocking density 1 / m2. Mow polyculture density of Macrobrachium 7 / m2 and tilapia 1 / m2. Macrobrachium rosenbergii stocking specifications _1 ~ 1.3g / tail, Nile tilapia stocking specifications 7 ~ 8g / tail, breeding 5 months to capture. The results showed that there was no significant difference between monoculture and polyculture of tilapia and average body weight. The total yield was 2952kg / hm2 and 2779kg / hm2, respectively. The average individual body weight was 350g / tail and 334g / tail, respectively. Monoculture and polyculture of Macrobrachium rosenbergii were 1377kg / hm2 and 961kg / hm2, respectively. The average body weight was 56g / bird and 32g / bird respectively. Total production of fish polyculture 3730kg / hm2, more than single-fish or shrimp production.