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Evaluation of weaning diets for sustainable indoor largemouth bass (Micropterus salmoides) larviculture

Author

Listed:
  • Jovanka Lukić

    (Institute of Molecular Genetics and Genetic Engineering, University of Belgrade (IMGGE), Belgrade, Serbia)

  • Norbert Vass

    (Institute of Aquaculture and Environmental Safety, Research Centre for Aquaculture and Fisheries, Hungarian University of Agriculture and Life Sciences, Szarvas, Hungary)

  • László Ardó

    (Institute of Aquaculture and Environmental Safety, Research Centre for Aquaculture and Fisheries, Hungarian University of Agriculture and Life Sciences, Szarvas, Hungary)

  • Jelena Stanivuk

    (Institute of Aquaculture and Environmental Safety, Research Centre for Aquaculture and Fisheries, Hungarian University of Agriculture and Life Sciences, Szarvas, Hungary)

  • Éva Lengyel-Kónya

    (Institute of Food Science and Technology, Food Science Research Group (MATE),Hungarian University of Agriculture and Life Sciences, Budapest, Hungary)

  • Nataša Golić

    (Institute of Molecular Genetics and Genetic Engineering, University of Belgrade (IMGGE), Belgrade, Serbia)

  • Zsuzsanna Jakabné Sándor

    (Institute of Aquaculture and Environmental Safety, Research Centre for Aquaculture and Fisheries, Hungarian University of Agriculture and Life Sciences, Szarvas, Hungary)

  • Uroš Ljubobratović

    (Institute of Aquaculture and Environmental Safety, Research Centre for Aquaculture and Fisheries, Hungarian University of Agriculture and Life Sciences, Szarvas, Hungary)

Abstract

This research evaluated the suitability of commercially available larval feeds, Otohime B2 (OB2), Aller Infa (AI), and Aqua Start (AS), and one Experimental Feed (EF), for the weaning of largemouth bass (Micropterus salmoides), LMB. Feeds were presented with various ω-3 fatty acid levels/bioavailability (high in OB2 and AI), fat percentage (high in OB2 and AS), free amino acid and short peptide (FAA + SP) levels (high in OB2), and various soluble protein (SPR) levels (high in AS and EF). Fish were co-fed Artemia plus OB2 from the 19th to 22nd day post-hatching (DPH), then Artemia in addition to one of the four above diets for seven days, with complete Artemia removal on the 30th DPH. Fish were sampled on the 32nd DPH. Morphometry, digestive enzyme activities, hormonal status, skeleton, muscle development, and potentially pathogenic Flavobacterium spp. levels were estimated. Survival was high (96% or more) in all the weaning regimes. Weaning to OB2 was linked to a fast fish growth rate (14.29%/day), while both OB2 and AI supported the skeleton development. Weight gain correlated with total fat, ash levels, free amino acids, and short peptide levels in the diet. Larvae weaned to soluble protein-rich AS and EF showed the lowest fish weight gain and skeleton development, and lower growth of potentially pathogenic Flavobacterium spp. This research suggests that the weaning diets for largemouth bass should have a balanced protein content and quality while allowing for the inclusion of fewer marine ingredients.

Suggested Citation

  • Jovanka Lukić & Norbert Vass & László Ardó & Jelena Stanivuk & Éva Lengyel-Kónya & Nataša Golić & Zsuzsanna Jakabné Sándor & Uroš Ljubobratović, 2024. "Evaluation of weaning diets for sustainable indoor largemouth bass (Micropterus salmoides) larviculture," Czech Journal of Animal Science, Czech Academy of Agricultural Sciences, vol. 69(12), pages 471-483.
    • Handle: RePEc:caa:jnlcjs:v:69:y:2024:i:12:id:129-2024-cjas
    DOI: 10.17221/129/2024-CJAS
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    References listed on IDEAS

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    1. Tomáš Pěnka & Oleksandr Malinovskyi & Jiří Křišťan & Aiman Imentai & Tomáš Policar, 2021. "Effect of density and mixed culture of largemouth bass (Micropterus salmoides) and pikeperch (Sander lucioperca) on growth, survival and feed conversion rate in intensive culture," Czech Journal of Animal Science, Czech Academy of Agricultural Sciences, vol. 66(10), pages 428-440.
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