The Effect of Emamectin Benzoate in the Control of Lernanthropus kroyeri (van Beneden, 1851) (Lernanthropidae) Infestations in Cultured Sea Bass, Dicentrarchus labrax (Linnaeus, 1758)
Makaleler > Tam Makale · 2006
Yazarlar: Erol Tokşen, Haşmet Çağırgan, Tansel T. Tanrikul, Hülya EMİNÇE SAYGI
\n Volume: 30, Issue: 4\n 405-409\n \n, Uluslararası, 2006
Özet
Five different dose groups were formed to evaluate the efficacy of emamectin benzoate as a treatment for Lernanthropus kroyeri (van Beneden, 1851) infestation in cultured sea bass Dicentrarchus labrax (L.). Emamectin benzoate was administered in-feed at doses of 0 (control), 10, 25, 50, and 100 µg kg-1 biomass day-1 for 7 consecutive days. Parasites were counted on days 7, 14, and 21, and comparisons were made to untreated control fish. Seawater temperature was 16-16.5 °C. Treatment with emamectin benzoate was effective against larval and mature stages of L. kroyeri. The number of L. kroyeri in the control fish increased by 8% during the 21 days of the study, whereas their number decreased in the treated fish by 55%, 50%, 43%, and 74% at the dose of 10, 25, 50, and 100 µg kg-1, respectively. No differences were observed with respect to growth between the treatment groups and the control group, and no mortality was observed at the end of the study.