Effects of dietary Nannochloropsis oculata on growth performance, serum biochemical parameters, immune responses, and resistance against Aeromonas veronii challenge in Nile tilapia (Oreochromis niloticus)

• Published in: Fish & shellfish immunology 2020-12, Vol.107 (Pt A), p.277-288
• Main Authors: Abdelghany, Mohamed F., El-Sawy, Hanan B., Abd El-hameed, Samah A.A., Khames, Mohamed K., Abdel-Latif, Hany M.R., Naiel, Mohammed A.E.
• Format: Article
• Language: English
• Subjects: Aeromonas veronii; Aeromonas veronii - physiology; Animal Feed - analysis; Animals; Cichlids - blood; Cichlids - growth & development; Cichlids - immunology; Diet - veterinary; Dietary Supplements - analysis; Disease Resistance - immunology; Dose-Response Relationship, Drug; Fish Diseases - immunology; Fish Diseases - microbiology; Gram-Negative Bacterial Infections - immunology; Gram-Negative Bacterial Infections - microbiology; Gram-Negative Bacterial Infections - veterinary; Growth; Immunity; Nannochloropsis oculata; Nile tilapia; Random Allocation; Stramenopiles - chemistry
• ISSN: 1050-4648; 1095-9947
• DOI: 10.1016/j.fsi.2020.10.015

The current work was planned to assess the effects of dietary microalga, Nannochloropsis oculata (NP) on the growth indices, serum biochemistry, non-specific immunity, and resistance of Nile tilapia (Oreochromis niloticus) juveniles against challenge with pathogenic Aeromonas veronii. Fish (10.21 ± 0.28 g) were randomly divided into four treatments in triplicates and were fed on diets supplemented with different levels of NP (0, 5, 10, and 15%) for eight weeks. The results showed that the dietary 5% NP significantly improved the growth parameters (final body weight, weight gain, specific growth rate, and total feed intake) (P