Farm evaluation of formulated diets on the growth and body composition of Etroplus suratensis reared in cages in low-saline coastal ponds

Sayooj, P and Vijayagopal, P and Vikas, P A and Nair, V Anusree and Vijayan, K K (2024) Farm evaluation of formulated diets on the growth and body composition of Etroplus suratensis reared in cages in low-saline coastal ponds. Journal of the Marine Biological Association of India, 66 (1). pp. 72-76. ISSN 2321-7898

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    Abstract

    A 90-day on-farm feeding experiment was carried out in the installed cages in brackishwater ponds to evaluate the efficiency of three formulated diets on the growth performance and body composition of Etroplus suratensis. Two diets DI and DII were in-house formulations based on optimum macronutrient requirements (protein and fat) derived from an indoor nutritional evaluation of E. suratensis, and diet three DIII was a commercially available pellet meant for pearl spot fish. A sum of 900 fishes were randomly distributed with an average weight of 18.2±0.02g into three different treatment groups each in triplicate, and each replicate had 100 fishes stocked in cages with dimensions 2×2×1.5 m. At the end of the feeding trial, the fish were weighed to assess growth parameters in terms of % gain in weight, feed conversion ratio (FCR), and specific growth rate (SGR). The diet (DI) displayed significantly (p<0.05) higher % weight gain, and SGR than (DII) and (DIII). The FCR of diet (DI) was significantly (p<0.05) lower than diets (DII) and (DIII). Diet (DI) showed better growth when compared with other feeds. The study emphasized the need for species-specific diets for application at the farm level for an effective return on investment.

    Item Type: Article
    Uncontrolled Keywords: Etroplus suratensis; diet; cages; Specific Growth Rate; Feed Coversion Ratio
    Subjects: Aquaculture > Farming/Culture
    Fish and Fisheries > Fish biology > Age and growth
    Aquaculture > Cage culture
    Aquaculture
    Divisions: CMFRI-Kochi > Marine Biotechnology, Fish Nutrition and Health Division
    Subject Area > CMFRI > CMFRI-Kochi > Marine Biotechnology, Fish Nutrition and Health Division
    CMFRI-Kochi > Marine Biotechnology, Fish Nutrition and Health Division
    Subject Area > CMFRI-Kochi > Marine Biotechnology, Fish Nutrition and Health Division
    Depositing User: Arun Surendran
    Date Deposited: 19 Jun 2024 09:55
    Last Modified: 19 Jun 2024 09:55
    URI: http://eprints.cmfri.org.in/id/eprint/18540

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