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Argulus is one of the most common and predominant ectoparasites which cause serious parasitic disease and is a potent carrier of viruses and bacteria in the ornamental fish industry. In recent years, organic (herbs)-based medicines are widely used to cure the disease, and neem (Sarbaroganibarini) medicine is very popular and effective throughout the world. The present study was conducted to find the effects of Azadirachtin against Argulus spp. on Carassius auratus under in vitro and in vivo conditions. The 96-h median lethal concentration (LC(50)) for Azadirachtin EC 25% against Carassius auratus was found to be 82.115 mg L(-1). The antiparasitic activity test under in vitro and in vivo was evaluated at 1 (T1), 5 (T2), 10 (T3), 15 (T4) and 20 mg L(-1) (T5) to treat Argulus for 3 h and 72 h, respectively. In vitro effect of Azadirachtin solution led to 100% mortality of Argulus at 20 and 15 mg L(-1) for 2.5 and 3 h, respectively. Whereas, under in vivo test, the 100% antiparasitic efficacy of Azadirachtin solution was found at 15 and 20 mg L(-1) for 72 and 48 h, respectively. The EC(50) for 48 h was 20 mg L(-1), and thus, therapeutic index is 4.10. The results provided evidence that Azadirachtin can be used as a potential agent for controlling Argulus.
Central Institute of Fisheries Education, Mumbai, 400061, India, firstname.lastname@example.org.
This article was published in the following journal.
Name: Parasitology research
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