We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
Effects of Shrimp Shell-Derived Chitosan on Growth, Immunity, Intestinal Morphology, and Gene Expression of Nile Tilapia (Oreochromis niloticus) Reared in a Biofloc System.
- Authors
Linh, Nguyen Vu; Lubis, Anisa Rilla; Dinh-Hung, Nguyen; Wannavijit, Supreya; Montha, Napatsorn; Fontana, Camilla Maria; Lengkidworraphiphat, Phattawin; Srinual, Orranee; Jung, Won-Kyo; Paolucci, Marina; Doan, Hien Van
- Abstract
Chitosan (CH) shows great potential as an immunostimulatory feed additive in aquaculture. This study evaluates the effects of varying dietary CH levels on the growth, immunity, intestinal morphology, and antioxidant status of Nile tilapia (Oreochromis niloticus) reared in a biofloc system. Tilapia fingerlings (mean weight 13.54 ± 0.05 g) were fed diets supplemented with 0 (CH0), 5 (CH5), 10 (CH10), 20 (CH20), and 40 (CH40) mL·kg−1 of CH for 8 weeks. Parameters were assessed after 4 and 8 weeks. Their final weight was not affected by CH supplementation, but CH at 10 mL·kg−1 significantly improved weight gain (WG) and specific growth rate (SGR) compared to the control (p < 0.05) at 8 weeks. Skin mucus lysozyme and peroxidase activities were lower in the chitosan-treated groups at weeks 4 and 8. Intestinal villi length and width were enhanced by 10 and 20 mL·kg−1 CH compared to the control. However, 40 mL·kg−1 CH caused detrimental impacts on the villi and muscular layer. CH supplementation, especially 5–10 mL·kg−1, increased liver and intestinal expressions of interleukin 1 (IL-1), interleukin 8 (IL-8), LPS-binding protein (LBP), glutathione reductase (GSR), glutathione peroxidase (GPX), and glutathione S-transferase (GST-α) compared to the control group. Overall, dietary CH at 10 mL·kg−1 can effectively promote growth, intestinal morphology, innate immunity, and antioxidant capacity in Nile tilapia fingerlings reared in biofloc systems.
- Subjects
NILE tilapia; WEIGHT gain; GENE expression; CHITOSAN; INTESTINES; GLUTATHIONE reductase; GLUTATHIONE peroxidase; GLUTATHIONE transferase
- Publication
Marine Drugs, 2024, Vol 22, Issue 4, p150
- ISSN
1660-3397
- Publication type
Article
- DOI
10.3390/md22040150