Potential of Bajakah Tampala Root Extract (Spatholobus littoralis Hassk) as an Antibacterial Agent Against Vibrio harveyi

Kana Maulida (Student of Veterinary Medicine, Faculty of Veterinary Medicine, Universitas Airlangga, Indonesia)
Iwan Sahrial Hamid (Division of Basic Veterinary Medicine, Faculty of Veterinary Medicine, Universitas Airlangga, Indonesia)
Maslichah Mafruchati (Division of Veterinary Anatomy, Faculty of Veterinary Medicine, Universitas Airlangga, Indonesia)
Bodhi Agustono (Division of Animal Husbandry, Faculty of Health Science, Medicine, and Life Science, Universitas Airlangga, Indonesia)
Amung Logam Saputro (Division of Veterinary Clinic Faculty of Health Science, Medicine, and Life Science, Universitas Airlangga, Indonesia)

journal of Basic Medical Veterinary
Vol. 15 No. 1 (2026): Journal of Basic Medical Veterinary, June 2026

Antibiotics are commonly used to treat vibriosis in shrimp. However, their prolonged use at high doses may lead to the development of antibiotic resistance. As a preventive measure against antibiotic resistance, the use of natural antibacterial agents is required. Bajakah tampala root (Spatholobus littoralis Hassk) has been reported to possess antibacterial properties. This study employed six treatment groups: a positive control using a tetracycline antibiotic disc, a negative control using distilled water and CMC-Na, and four treatment groups (P1, P2, P3, and P4) treated with Bajakah tampala root extract (Spatholobus littoralis Hassk) at concentrations of 25%, 50%, 75%, and 100%, respectively. After treatment, the diameters of the inhibition zones were measured. The data obtained were analyzed using the Shapiro–Wilk normality test, followed by one-way analysis of variance (ANOVA). The results showed that treatment P4, with a 100% concentration of Bajakah tampala root extract (Spatholobus littoralis Hassk), produced an inhibition zone diameter comparable to that of the positive control.