Canola oil and/or linseed oil improved growth performance, immunephysiological and metabolic responses of Nile tilapia plant oils improved tilapia health
Abstract
This study aimed to evaluate the synergistic effect of canola oil (CO) and linseed oil (LO) on growth performance, blood health, immune-oxidative status, and intestinal morphometry of Nile tilapia, Oreochromis niloticus fingerlings. Fish (n=270, 9.865±0.343g) were randomly distributed in 18 hapas in triplicates at a rate of 15 fish per replicate. Fish were divided into six groups: (1) fish received only basal diet (control group, CG), (2) basal diet containing 0.25% canola oil (CO 0.25%), (3) basal diet containing 0.5 % canola oil (CO 0.5%), (4) basal diet containing 1.0% canola oil (CO 1%), (5) basal diet containing 2% linseed oil (LO 2%), (6) basal diet containing a mixture of canola oil 0.1% and linseed oil 0.1% (CO1 x LO1%). The results showed that the fish that received CO and/or LO had significantly (p<0.05) better growth performance, including final weight, weight gain, specific growth rate, and feed conversion ratio, than CG. The best results were found in fish that received CO/LO. Hematological and biochemical profiles were conducted and showed that dietary CO and/or LO increased red blood cells, hemoglobin, white blood cells, total protein, globulin, cholesterol, triglycerides, and decreased lymphocytes and creatinine compared with CG (p<0.05) with the best findings in CO/LO. Antioxidant enzymes (increased catalase, superoxide dismutase, and reduced malonaldehyde), digestive enzymes (lipase and amylase), immune response (lysozyme and phagocytic index), and intestinal morphometry were improved when fish received CO and/or LO with the best results in CO/LO. To conclude, dietary incorporation of CO and/or LO improved growth performance, blood health, immune-oxidative status, and intestinal morphometry of Nile tilapia fingerlings. The best findings were reported in fish received CO/LO.
Article Details
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Abdelhamid, A., Elnokrashy, A., Ebied, N., Al-Deriny, S., Abdelkader, M., Abozahra, N., & Mohamed, R. (2024). Canola oil and/or linseed oil improved growth performance, immunephysiological and metabolic responses of Nile tilapia: plant oils improved tilapia health. Journal of the Hellenic Veterinary Medical Society, 75(2), 7457–7470. https://doi.org/10.12681/jhvms.34891
- Fascicolo
- V. 75 N. 2 (2024)
- Sezione
- Research Articles
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