Amyloodinium ocellatum (Dinoflagellate protozoa) Infestation in Dicentracus labrax (Sea bass) and trials of treatment

Egyptian Journal of Animal Health Pub Date : 2024-01-01 DOI:10.21608/ejah.2024.326630

Dawlat A. Hassanin, Eman M. Abouelhassan, Walaa El-Shaer

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Abstract

A myloodiniosis‎ (marine‎ velvet,‎ velvet‎ disease)‎ is‎ one‎ of‎ the‎ main‎ problems‎in‎aquaculture,‎in‎this‎study,‎A‎total‎300‎of‎European‎ Di-centracus labrax ‎fingerlings,‎were‎collected‎randomly‎from‎a‎fishing‎ farm‎at‎Port‎Said‎governorate,‎Egypt,‎in‎the‎summer‎of‎2022.‎Samples‎were‎ taken‎for‎the‎parasitological‎examination‎(light‎and‎electron‎microscopical‎ examination)‎which‎revealed‎the‎presence‎of‎ Amyloodinium ocellatum ,‎for‎ the‎experimental‎design. The‎total Prevalence‎of‎the‎300‎examined‎ Dicen-trarchus labrax ‎fish,‎was‎195‎(65.00%),‎a‎total‎of‎240‎ D. labrax ‎fingerlings‎ were‎ divided‎ into‎ four‎ equal‎ groups‎ of‎ 60‎ each‎ and‎ distributed‎ equally‎ in‎ fiberglass‎tanks,‎and‎both‎Copper‎sulfate‎and‎hydrogen‎peroxide‎were‎used‎ in‎the‎treatments‎for‎14‎days,‎giving‎good‎recovery‎with‎decreasing‎the‎mor-talities‎rates.‎‎The‎identification‎is‎confirmed‎by‎scanning‎electron‎micro-scope.

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海鲈鱼（Dicentracus labrax）中的褐藻原虫（Amyloodinium ocellatum）侵袭和治疗试验

在本研究中，我们于 2022 年夏季在埃及赛义德港省的一个渔场随机收集了 300 尾欧洲笛鲷幼鱼。样本用于寄生虫学检查（光镜和电子显微镜检查），结果表明存在卵黄囊虫（Amyloodinium ocellatum），用于实验设计。将 240 尾马鲛鱼苗分成 4 组，每组 60 尾，平均分配在玻璃纤维池中，用硫酸铜和过氧化氢进行 14 天的处理，结果表明，马鲛鱼苗的恢复情况良好，蜕皮率下降。

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Egyptian Journal of Animal Health

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