Hydrology: Current Research

Jayasankar P

Publications

• Research Article
  Carbon, Nitrogen and Phosphorus Budget for the Culture of Indian Major Carps with Different Stocking Density
  Author(s): Adhikari S, Pani KC, Mishra B, Jena JK and Jayasankar PAdhikari S, Pani KC, Mishra B, Jena JK and Jayasankar P
  
  Nutrient budget was performed for the culture of Indian major carps; Catla catla (catla), Labeo rohita (rohu) and Cirrhinus mrigala (mrigal) in twelve fishponds, each of 0.04 ha water area. The stocking densities of carps were 7,500; 10,000 and 12,500 no. /ha (four replications for each stocking density and the ratio of each species was 1:1:1) and the average weights of catla, rohu and mrigal fingerlings were 6.5 ± 0.5, 5.0 ± 0.4 and 3.5 ± 0.4 g, respectively. The culture period was six months. Cow dung@14,000 kg/ha/yr was applied fortnightly as manure. Urea@200 kg/ha/yr and single super  phosphate@300kg/ha/yr were applied fortnightly as fertilizers. The fish were fed with an admixture of groundnut oil cake and rice polish in the ratio of 1:1@2% body weight of their biomass. The budget showed that recovery (in terms of fish yield) of nitrogen (N) decreased from 43 .. Read More»
  DOI: 10.4172/2157-7587.1000176

  Abstract PDF