Innovative use of squid (Loligo spp.) ink powder as a potent immunostimulant for vannamei shrimp (Litopenaeus vannamei) in the treatment of infectious myonecrosis.
Gespeichert in:
| Titel: | Innovative use of squid (Loligo spp.) ink powder as a potent immunostimulant for vannamei shrimp (Litopenaeus vannamei) in the treatment of infectious myonecrosis. |
|---|---|
| Autoren: | Fadjar, Mohamad1 f4dj4r@ub.ac.id, Kühn, Hartmut2 hartmut.kuehn@charite.de, Ramadhani, Ayu Winna3 winnaramadhani@ub.ac.id, Aisyah, Diana3 dianaaisyah@ub.ac.id, Herlina, Cucun1 cucunherlina@ub.ac.id, Affandi, Rangga Idris4 ranggaidrisaffandi@unram.ac.id, Anjaini, Jefri5 jefri.anjaini@unsoed.ac.id |
| Quelle: | Veterinary World. Jun2025, Vol. 18 Issue 6, p1777-1788. 12p. |
| Publikationsart: | Article |
| Schlagworte: | Whiteleg shrimp, Proteins in animal nutrition, Ribonucleoside diphosphate reductase, One-way analysis of variance, Superoxide dismutase |
| Author-Supplied Keywords: | aquaculture health immunostimulant infectious myonecrosis virus Litopenaeus vannamei non-specific immune response squid ink powder |
| Abstract: | Background and Aim: Infectious myonecrosis virus (IMNV) is a significant pathogen affecting Litopenaeus vannamei, causing high mortality and substantial economic losses in shrimp aquaculture. Conventional chemotherapeutics have limited efficacy and raise environmental concerns. This study explores the immunostimulatory potential of squid (Loligo spp.) ink powder as a natural dietary supplement to enhance the nonspecific immune responses in L. vannamei and mitigate IMNVassociated pathology. Materials and Methods: A completely randomized design was employed, with five groups: a negative control (healthy shrimp), a positive control (IMNV-infected), and three treatment groups that received squid ink powder at 400, 500, and 600 mg/kg feed, respectively. The feed was administered before and after IMNV immersion challenge. Immune parameters assessed included total hemocyte count (THC), differential hemocyte count (DHC), respiratory burst (RB), phenoloxidase (PO), superoxide dismutase (SOD), phagocytic activity, and ribonucleotide reductase (RR) expression. Statistical analysis was conducted using a one-way analysis of variance with Duncan’s post hoc test. Results: The 500 mg/kg dose of squid ink powder significantly enhanced shrimp immunity post-IMNV challenge. This treatment yielded the highest THC (6 × 105 cells/mL), RB (1.13 optical density [OD]), SOD (0.98 units/mL), PO (0.619 OD), and phagocytic activity. A marked reduction in RR enzyme expression was observed, indicating effective viral suppression. DHC analysis revealed elevated granulocyte and semi-granulocyte counts, suggesting heightened immunological activity. Water quality parameters remained within acceptable aquaculture limits, and proximate analysis confirmed an improvement in protein content in the feed following supplementation. Conclusion: Squid ink powder at 500 mg/kg feed significantly enhances the non-specific immune system in L. vannamei and reduces IMNV-induced pathology. This natural additive offers a promising, sustainable alternative to synthetic immunostimulants in shrimp aquaculture. [ABSTRACT FROM AUTHOR] |
| Copyright of Veterinary World is the property of Veterinary World and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Author Affiliations: | 1Department of Fisheries and Water Resource Management, Faculty of Fisheries and Marine Science, University of Brawijaya, Malang, Indonesia. 2Department of Biochemistry, Charité-Universitätsmedizin Berlin, Berlin, Germany. 3PSDKU Aquaculture, Faculty of Fisheries and Marine Science, University of Brawijaya, Malang, Indonesia. 4Department of Fisheries and Marine Science, Faculty of Agriculture, University of Mataram, Mataram, Indonesia. 5Department of Fisheries, Faculty of Fisheries and Marine Science, University of Jenderal Soedirman, Purwokerto, Indonesia. |
| ISSN: | 0972-8988 |
| DOI: | 10.14202/vetworld.2025.1777-1788 |
| Dokumentencode: | 186296489 |
| Datenbank: | Veterinary Source |
| Abstract: | Background and Aim: Infectious myonecrosis virus (IMNV) is a significant pathogen affecting Litopenaeus vannamei, causing high mortality and substantial economic losses in shrimp aquaculture. Conventional chemotherapeutics have limited efficacy and raise environmental concerns. This study explores the immunostimulatory potential of squid (Loligo spp.) ink powder as a natural dietary supplement to enhance the nonspecific immune responses in L. vannamei and mitigate IMNVassociated pathology. Materials and Methods: A completely randomized design was employed, with five groups: a negative control (healthy shrimp), a positive control (IMNV-infected), and three treatment groups that received squid ink powder at 400, 500, and 600 mg/kg feed, respectively. The feed was administered before and after IMNV immersion challenge. Immune parameters assessed included total hemocyte count (THC), differential hemocyte count (DHC), respiratory burst (RB), phenoloxidase (PO), superoxide dismutase (SOD), phagocytic activity, and ribonucleotide reductase (RR) expression. Statistical analysis was conducted using a one-way analysis of variance with Duncan’s post hoc test. Results: The 500 mg/kg dose of squid ink powder significantly enhanced shrimp immunity post-IMNV challenge. This treatment yielded the highest THC (6 × 105 cells/mL), RB (1.13 optical density [OD]), SOD (0.98 units/mL), PO (0.619 OD), and phagocytic activity. A marked reduction in RR enzyme expression was observed, indicating effective viral suppression. DHC analysis revealed elevated granulocyte and semi-granulocyte counts, suggesting heightened immunological activity. Water quality parameters remained within acceptable aquaculture limits, and proximate analysis confirmed an improvement in protein content in the feed following supplementation. Conclusion: Squid ink powder at 500 mg/kg feed significantly enhances the non-specific immune system in L. vannamei and reduces IMNV-induced pathology. This natural additive offers a promising, sustainable alternative to synthetic immunostimulants in shrimp aquaculture. [ABSTRACT FROM AUTHOR] |
|---|---|
| ISSN: | 09728988 |
| DOI: | 10.14202/vetworld.2025.1777-1788 |