Effects of Formulated Diet and Frozen Fresh Fish on Growth, Serum Biochemical Indexes, Liver Antioxidant, and Lipid Metabolism of Juvenile Cobia (Rachycentron canadum)

• Published in: Aquaculture research 2023-09, Vol.2023, p.1-15
• Main Authors: Huang, Jian-sheng, Chen, Dian-yu, Jin, Jing-hui, Xie, Rui-tao, Lu, Yi, Amenyogbe, Eric
• Format: Article
• Language: English
• Subjects: Alkaline phosphatase; Antioxidants; Aquaculture; Aspartate aminotransferase; Body weight; Body weight gain; Cholesterol; Condition factor; Costs (Law); Diet; Enzymatic activity; Enzyme activity; Enzymes; Experiments; Fatty acids; Fatty-acid synthase; Feed conversion; Feed conversion efficiency; Feeds; Fish; Fish as food; Fish oils; Food conversion; Growth; Growth rate; Juveniles; Lipid metabolism; Lipids; Liver; Malate dehydrogenase; Metabolism; Nitrogen; Nutrition; Nutritive value; Phosphatase; Phosphatases; Phosphorus; Proteins; Rachycentron canadum; Saccharides; Serum; Soybeans; Triglycerides
• ISSN: 1355-557X; 1365-2109
• DOI: 10.1155/2023/2544013

Feed is the main source of material and energy for farmed fish, and its nutritional value and balance are important factors affecting fish’s growth rate and physical health. In order to explore the effects of two different feed sources on the growth, serum biochemical indexes, liver antioxidant capacity, and lipid metabolism of young cobia fish, 300 young cobia fish with an initial body weight of 43.14 ± 1.25 g were selected for the experiment and randomly divided into two treatments. Each treatment had five replicates, and each replicate had 30 fish. They were fed with formulated feed and frozen fresh fish, respectively, for 12 weeks. The results showed that the weight gain rate, specific growth rate, and feed conversion rate of juvenile cobia fish fed with formulated diet were extremely significantly lower than those of the frozen fresh fish group (P