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Comparative study on the effect of two different cage material in cage culture on water environment
Author(s): 
Pages: 7-9,76
Year: Issue:  11
Journal: Hebei Fisheries

Keyword:  CageMaterialWater Environment;
Abstract: In this paper ,based on the material balance law ,through the detection of total nitrogen ,in‐crease the fry to breeding process of total phosphorus ,copper ,zinc content and during breeding ,feed of total nitrogen ,total phosphorus ,copper ,zinc content ,total nitrogen ,total phosphorus ,estimation for copper ,zinc content in order to estimate the residual bait ,into the water total nitrogen ,total phosphor‐us in the environment ,copper ,zinc content .The results display that ,net cage culture process of syn‐thetic fiber in the bait of total nitrogen ,total phosphorus ,copper ,zinc relative investment ratio of feed were 12 .5% ,22 .5% ,21 .3% ,33 .1% ,the metal net cage are respectively 4 .5% ,9 .7% ,-11 .4% ,28 . 8% ,this shows that the metal net cage culture on water environment than the synthetic fiber net cage culture .
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