Effect of water temperature on growth, blood biochemistry, digestive, metabolic enzymology, and antioxidant defences of Trachinotus blochii juveniles

• Published in: Aquaculture international 2023-06, Vol.31 (3), p.1499-1522
• Main Authors: Prabu, Dhanasekaran Linga, Kalidas, C., Ranjith, L., Ebeneezar, Sanal, Kavitha, M., Zacharia, P. U., Vijayagopal, P., Babu, A. Mathan, Muniswaran, B. Ramar
• Format: Article
• Language: English
• Subjects: Antioxidants; Biochemistry; Biomedical and Life Sciences; Blood; Enzymatic activity; Enzyme activity; Feed conversion; Feed conversion efficiency; Fish; Freshwater & Marine Ecology; Growth; Juveniles; Life Sciences; Lipids; Marine fishes; Metabolism; Minors; Proteins; Serum; Survival; Tanks; Trachinotus blochii; Tyrosine; Water; Water temperature; Zoology
• ISSN: 0967-6120; 1573-143X
• DOI: 10.1007/s10499-022-01038-8

An experiment was conducted for 6 weeks to determine the effect of elevated water temperature on growth, feed utilisation, blood biochemistry, digestive and metabolic enzyme activity, and antioxidant defences of juvenile snubnose pompano, Trachinotus blochii . One hundred and eighty snubnose pompano juveniles with an average weight of 4.01 ± 0.1 g were randomly stocked in five treatments, each with triplicates in 300 L capacity tanks. Five treatments, namely T29, T30, T31, T32, and T33, were maintained with different constant water temperatures of 29, 30, 31, 32, and 33 °C, respectively. The experimental fish were fed to apparent satiation with a diet containing 40% crude protein and 6% crude lipid twice daily throughout the experimental period. Growth response in terms of body gain (BG) and body gain percentage (BG%) showed a significant difference ( P