Effects of stocking density on growth factors, survival and blood and tissue parameters, in Giant gourami (Osphronemus goramy (Lacepede, 1801))

Subject Areas : New Technologies in Aquaculture Development

Received: 2020-05-02 Accepted : 2020-05-02 Published : 2010-08-23

Keywords: growth factors, Keywords: Density, Giant gourami,

Abstract :

Giant gourami (Osphronemus goramy) is especially important in Southeast Asia for aquaculture and integrated fish farming and in Iran, for ornamental purposes. As we have no particular published data on the best stocking density for the culture of this fish, four treatments (treatments 1-4 respectively) were designed with 9, 14, 19 and 24 individual per tank (270.56, 420.87, 571.19 and 721.50 ind.m3 respectively). Growth factors, survival rate, homogeneity in the culturing group of fish (coefficient of variation (CV)), stress dependent factors (hematocrite, glucose and total protein) and cholesterol were determined for them. Results showed that we have no significant difference (p < /em><0.05) in SGR, FCR, DGI and hematological parameters. But we have a significant difference in survival (p < /em><0.05). With regards to the growth, survival changes, and blood parameters, the first treatment with 270.56 individual per cubic meter had the best condition for culturing.