The role of β-glucan in the growth, intestinal morphometry, and immune-related gene and heat shock protein expressions of Nile tilapia (Oreochromis niloticus) under different stocking densities

By Mahmoud A. O. Dawood, Abd El-Salam Metwally, M. El-Sharawy, Ahmed M. Atta, Z. Elbialy, H. Abdel‐Latif, B. A. Paray. 2020

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Abstract This study aimed to evaluate the growth, intestinal morphometry, immune-related genes, and heat shock protein in Nile tilapia (Oreochromis niloticus) reared at a rate of 10 (low density—LD, 200/m3), 20 (medium density—MD, 400/m3), and 30 (high density—HD, 600/m3) fish per aquarium (50 L). The fish were fed two diets [control and β-glucan (BG)] (2 × 3, factorial design) for 60 days. The growth parameters were significantly decreased by increasing the rearing density of Nile tilapia fed the control diet, whereas the fish reared in LD and MD and fed the BG diet showed increased growth (P   .05), whereas those fed the BG diet showed relatively higher values (P

Subfields: Aquatic Science, Immunology

View Paper: https://www.semanticscholar.org/paper/b8dd4d5aa6ed3fb225904eccc333a003d53fc003