Inclusion of tilapia (Oreochromis niloticus) by-product meal in the diet for red sea bream (Pagrus major, Temminck & Schlegel) fingerlings

Considering the increasing importance of fishmeal made from processed fish residues and the high production of tilapia, this study examined the effects of substituting tilapia by-product meal (TBM) for the protein in Peruvian anchovy meal (PAM) in the diet of juvenile red sea bream ( Pagrus major ),...

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Bibliographic Details
Published in:Fisheries science Vol. 91; no. 4; pp. 811 - 822
Main Authors: Takakuwa, Fumiaki, Migita, Takanobu, Tanaka, Toshiko, Ukei, Junya, Iizuka, Taisuke
Format: Journal Article
Language:English
Published: Tokyo Springer Japan 01.07.2025
Springer Nature B.V
Subjects:
Aquaculture
Biomedical and Life Sciences
Body composition
Body condition
Body weight
Bream
Byproducts
Catfish
Cellulose
Corn
Diet
Fatty acids
Feeding experiments
Fingerlings
Fish
Fish & Wildlife Biology & Management
Fish meal
Fishmeal
Food Science
Freshwater & Marine Ecology
Freshwater fishes
High density lipoprotein
Ingredients
Juveniles
Life Sciences
Lipoproteins
Marine fishes
Original Article
Pagrus major
Proteins
Seafood
Tanks
Tilapia
Whitefish
China
Japan
Red sea bream
Fishmeal alternative
Tilapia by-product meal
Growth performance
ISSN:0919-9268, 1444-2906
Online Access:Get full text
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Summary:Considering the increasing importance of fishmeal made from processed fish residues and the high production of tilapia, this study examined the effects of substituting tilapia by-product meal (TBM) for the protein in Peruvian anchovy meal (PAM) in the diet of juvenile red sea bream ( Pagrus major ), focusing on growth and body composition. Five isonitrogenous and isolipidic diets were prepared by replacing PAM with TBM at 0, 15, 30, 45, and 55% (named as T0, 15, 30, 45, and 55, respectively). Thirty fish (mean body weight, 10.8 g) were accommodated into 500 L tanks in triplicate. In the 6-week feeding trial, no significant differences were observed in growth performance depending on the dietary TBM level ( p  > 0.05). In contrast, the crude fat content of the whole body decreased linearly with increasing dietary TBM levels, with a significant difference between the T55 and T0 groups ( p  < 0.05). Serum high-density lipoprotein concentration also tended to increase linearly with increasing dietary TBM levels. Overall, PAM in the diet of juvenile red sea bream could be replaced by up to 45% with TBM without any adverse effects on its growth and physiology over a 6-week period.
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ISSN:0919-9268
1444-2906
DOI:10.1007/s12562-025-01889-z