Effects of ascorbic acid and iron nanoparticles supplements on hyperthermia-induced stress in African catfish, Clarias gariepinus (Burchell, 1822)

The Journal of Basic and Applied Zoology

Gbadamosi K. Oluyemi¹ 

[1]Department of Fisheries and Aquaculture Technology, Federal University of Technology, Akure, Ondo, Nigeria

关键词: Hyperthermia;    Stress;    Ascorbic acid;    Iron;    Nanoparticles;    African catfish;    supplement;   

DOI  :  10.1186/s41936-021-00256-5

来源: Springer

【 摘 要 】

BackgroundThermal stressors in tropical aquaculture are unavoidable and cause many harmful effects. This study assessed the effects of ascorbic acid (AA) and iron nanoparticles supplementation in the diet of African catfish, Clarias gariepinus, and exposed to hyperthermia-induced stress. C. gariepinus juveniles weighing 6.89 ± 0.05 g were randomly distributed into plastic tanks of 48 cm by 30 cm by 31 cm dimension at ten fish per tank in a triplicate treatment. Five isonitrogenous and isocaloric diets containing 35% crude protein were formulated with AA and iron nanoparticles supplementation at (10, 8, 6, 4, 0) g/kg of AA and (0, 4, 6, 8, 0) g/kg of iron nanoparticles in treatment 1, 2, 3, 4 and 5, respectively. After 8 weeks of feeding, fish were exposed to hyperthermia-induced stress. Blood was collected from the fish for haematological and biochemical analyses.ResultsResults showed that there were significant differences (P < 0.05) in the growth performance and nutrient utilization of fish subjected to hyperthermia-induced stress. Treatment three had the highest specific growth rate of 1.89 g per day and the best feed conversion ratio (FCR) of 1.48.ConclusionMortality was reduced with the supplementation of the fish diets with AA and iron nanoparticles. Based on the result of this study, a supplementation level containing AA and iron nanoparticles supplementation of 6 g/kg and 4 g/kg were sufficient as a stress-reducing agent in the production of C. gariepinus during hyperthermia stress.

【 授权许可】

CC BY