尼罗罗非鱼循环式水培系统中印度菠菜种植密度的优化

M. Hossain, A. –, T. Akhter, Masuma Akhter Sadia, T. Akhter, K. Habib
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引用次数: 0

摘要

在循环水培系统中,比较了不同种植密度对印度菠菜(Basella alba)和尼罗罗非鱼生长和产量的影响。采用4个密度(4株/m2、8株/m2、12株/m2和16株/m2)种植印度菠菜。尼罗罗非鱼(体重32.5 g)的放养密度为45条/箱(水量300 L)。种植密度为12株/m2时,鱼体增重率、增重率、特定生长率和蛋白质效率最高。饲料系数在此密度下也最低。印度菠菜单株叶数、株长、株重和产量在12株/m2时最高。结果表明,在循环式水培系统中,印度菠菜种植密度为12株/m2,配以45只鱼/池,既适合蔬菜养殖,也适合尼罗罗非鱼养殖。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Optimization of Planting Density of Indian Spinach in a Recirculating Aquaponics System Using Nile Tilapia
An experiment was conducted for a period of 10 weeks to compare the effect of planting density on the growth and yield of Indian spinach (Basella alba) and Nile tilapia (Oreochromis niloticus) in a re- circulating aquaponics system. Indian spinach was planted at four densities (4 plants/m2, 8 plants/m2, 12 plants/m2 and 16 plants/m2). Stocking density of Nile tilapia (Av. body wt. 32.5 g) was 45 fish/tank (water capacity 300 L) in all planting densities. The highest weight gain, percent weight gain, specific growth rate and protein efficiency ratio of fish were obtained at planting density of 12 plants/m2. Feed conversion ratio was also lowest at this density. Number of leaves per plant, plant length, plant weight and yield of Indian spinach were the highest at 12 plants/m2. It was concluded that the plant density of 12 plants/m2, for Indian spinach integrated with 45 fish/tank was suitable for production of both vegetable and Nile tilapia in a recirculating aquaponics system.    
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