Skip to main page content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

Https

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation
. 2025 Feb 27:2025:5625045.
doi: 10.1155/anu/5625045. eCollection 2025.

Impacts of Replacing Blended Fish Meal With Diverse Animal and Plant Protein Sources and Their Combinations in the Diets on Growth, Feed Availability, Biochemical Composition, and Blood Chemistry of Rockfish (Sebastes schlegelii)

Md Farid Uz Zaman  1 , Sung Hwoan Cho  2
Affiliations

Impacts of Replacing Blended Fish Meal With Diverse Animal and Plant Protein Sources and Their Combinations in the Diets on Growth, Feed Availability, Biochemical Composition, and Blood Chemistry of Rockfish (Sebastes schlegelii)

Md Farid Uz Zaman et al. Aquac Nutr. .

Abstract

The impacts of replacing diverse animal and plant protein sources, and their combination of fish meal (FM) on growth, feed consumption and utilization, biochemical composition, and blood chemistry of juvenile rockfish (S. schlegelii) were examined. One thousand and eighty juvenile (mean initial weight of 2.5 g) rockfish were assigned to 27 flow-through tanks with a capacity of 250 L each, with 40 fish per tank. Nine isonitrogenous (52.5%) and isolipidic (12.5%) experimental diets were prepared. The control (Con) diet contained 60% FM. In the Con diet, 25% FM protein was substituted with a single protein source of meat meal (MM), chicken by-product meal (CBM), corn gluten meal (CGM), and corn protein concentrate (CPC), as well as the combined MM and CGM, the combined MM and CPC, the combined CBM and CGM, and the combined CBM and CPC, referred to as the MM, CBM, CGM, CPC, CMCG, CMCP, CCCG, and CCCP diets, respectively. Each formulated feed was given to rockfish in triplicate groups and hand-fed twice a day for 12 weeks. Specific growth rate (SGR) of rockfish fed the Con diet was considerably (p < 0.001) greater than that of rockfish fed the MM, CBM, CGM, CPC, CMCP, CCCG, and CCCP diets but not considerably different from that of rockfish fed the CMCG diet. Feed consumption of rockfish was not considerably influenced by dietary treatments. Rockfish fed the Con diet had considerably (p < 0.0001 for both) greater feed efficiency and protein efficiency ratio than rockfish fed all other diets, except for the CMCG diet. However, the experimental feeds had no considerable impacts on the biological indices, biochemical composition except for the sum of the n-3 highly unsaturated fatty acids, plasma, and serum parameters of rockfish. In summary, the combined MM and CGM can substitute 25% FM protein in the diet of rockfish without retardation in SGR, feed availability, and blood chemistry.

Keywords: combined protein source; feed availability; fish meal substitution; rockfish (Sebastes schlegelii).

PubMed Disclaimer

Conflict of interest statement

The authors declare no conflicts of interest.

References

    1. KOSIS. Korean Statistical Information Service. 2024. https://kosis.kr/eng/statisticsList/statisticsListIndex.do .
    1. Baek S. I., Cho S. H., Kim H. S. Dietary Inclusion Effect of Various Levels of Jack Mackerel Meal on the Growth Performance, Feed Efficiency and Whole Body Composition of Rockfish (Sebastes schlegeli) Fisheries and Aquatic Sciences . 2021;24(9):311–317. doi: 10.47853/FAS.2021.e30. - DOI
    1. Lee M. J., Kim J., Baek S. I., Cho S. H. Substitution Effect of Fish Meal With Meat Meal in Diet on Growth Performance, Feed Consumption, Feed Utilization, Chemical Composition, Hematology, and Innate Immune Responses of Rockfish (Sebastes schlegeli) Aquaculture . 2023;571 doi: 10.1016/j.aquaculture.2023.739467.739467 - DOI
    1. Cho S. H., Lee S., Park B., et al. Effect of Partial Dietary Substitution of Meat Meal for Fish Meal on the Growth and Body Composition of the Juvenile Olive Flounder, Paralichthys olivaceus. Fisheries and Aquatic Sciences . 2005;8(3):138–141. doi: 10.5657/fas.2005.8.3.138. - DOI
    1. Sun L., Chen H., Huang L., Wang Z. Growth, Faecal Production, Nitrogenous Excretion and Energy Budget of Juvenile Cobia (Rachycentron canadum) Relative to Feed Type and Ration Level. Aquaculture . 2006;259(1–4):211–221. doi: 10.1016/j.aquaculture.2006.05.024. - DOI

LinkOut - more resources