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Anthelmintic Effects of Lavender Essential Oil on Dactylogyrus vastator Infesting Goldfish (Carassius auratus)
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Mohammad Rahanande *   |
| Department of Aquatics and Fisheries Research, Guilan Agricultural and Natural Resources Research and Education Center, Agricultural Research Education and Extension Organization (AREEO), Rasht, Iran |
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Abstract: (189 Views) |
| This study evaluated the antiparasitic effects of lavender essential oil against the gill monogenean parasite Dactylogyrus vastator in goldfish (Carassius auratus). During the summer of 2025, fifty naturally infected goldfish weighing 40–65 g were maintained in control and treatment aquaria under controlled environmental conditions (24–28 °C; pH 7.2) with continuous aeration and appropriate feeding. Prior to treatment, fish were anesthetized using clove extract, and parasite infestation levels were confirmed by microscopic examination. Different concentrations of lavender essential oil were administered for varying exposure periods to assess their effects on parasite mortality. The results demonstrated that increasing both the concentration of lavender essential oil and the exposure duration significantly increased parasite mortality (P < 0.05). Concentrations of 0.5 and 1 mL/L showed considerable antiparasitic activity against D. vastator. Exposure to 1.5 mL/L lavender essential oil for 30 min or longer resulted in nearly 100% parasite mortality, with significant differences compared to the control group (P < 0.05). The findings indicate that lavender essential oil may serve as a potential natural antiparasitic agent for controlling Dactylogyrus infections in ornamental fish culture. |
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| Keywords: Lavender essential oil, Dactylogyrus vastator, Goldfish, Monogenean parasite, Antiparasitic treatment. |
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Full-Text [PDF 525 kb]
(52 Downloads)
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Type of Study: Research |
Subject:
Special
Received: 2026/04/21 | Accepted: 2026/03/30 | Published: 2026/05/30
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