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Hairul Hafiz Bin Mahsol
Conservation Biology Program, Faculty of Tropical Forestry, University Malaysia Sabah, Kinabalu, Malaysia

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Effect of Gracilaria verrucosa Extract as an Immunostimulant on the Non-Specific Immune System of Striped Catfish (Pangasius hypophthalmus) Arif Habib Fasya; Laksmi Sulmartiwi; Prayogo; Hairul Hafiz Bin Mahsol; Siska Adelia Sitompul
Journal of Aquaculture Science Vol 10 No 2 (2025): Journal of Aquaculture Science
Publisher : Airlangga University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20473/joas.v10i2.70743

Abstract

One of the failures of freshwater fish farming is often caused by the attack of A. hydrophila bacteria. This bacterial attack can be prevented by administering immunostimulants derived from G. verrucosa extract. This study aims to determine the non-specific immune response of striped catfish to Aeromonas hydrophila infection following supplementation of G. verrucosa extract in feed. Five doses were administered in this study: 1 ml, 1.5 ml, and 2 ml per kg of feed, as well as a positive control and a negative control. Blood samples were collected every week after infection, and the parameters observed were total erythrocyte and leucocyte counts, as well as leucocyte differential counts. The results showed that G. verrucosa extract significantly increased blood cell counts. The highest dose was found to be the most effective in increasing the non-specific immune response of striped catfish against A. hydrophila infection
Co-Authors Arif Habib Fasya Laksmi Sulmartiwi Prayogo Siska Adelia Sitompul