首次报告在养殖的鸡噜苏 Parapristipoma trilineatum 中爆发 Kudoa lutjanus疫情。

IF 1.5 4区 农林科学 Q3 FISHERIES Journal of aquatic animal health Pub Date : 2023-12-24 DOI:10.1002/aah.10203
Li-Wu Cheng, Hsien-Chung Lee, Wei-Xiao Yan, Yu-Han Tseng, Wen-Rou Huang, Pei-Chi Wang, Shih-Chu Chen
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引用次数: 0

摘要

目的作为台湾水产养殖国家疫病监测计划的一部分,我们调查了养殖鸡鲩鱼 Parapristipoma trilineatum 爆发疫病的病原体:本研究注意到台湾屏东县沿海两个不同养殖场的暴发病例。从两个养殖场共采集了 50 尾出现临床症状(如消瘦和游动不稳)的幼鱼和育雏鱼(两雌两雄),进行了大体病变评估、组织病理学检查和病原体分子鉴定:临床症状是受感染的鱼表现出不规则的游动行为,如打转和漂浮在水面上。在随后的几个月中,累计死亡率分别达到 19% 和 24%。受感染鱼类的大体病变包括肌肉、内脏血清膜、眼睛巩膜和脑膜上的白色椭圆形囊肿。在用光学显微镜对囊肿进行湿装片检查后,我们观察到大量孢子,其形态特征表明它们属于Myxosporea类。孢子呈半四边形,外围有四个微小的缝合缺口;孢子的平均长度为 7.3 μm(SD = 0.5),平均宽度为 8.2 μm(SD = 0.6)。梨形极囊(线囊)的平均长度和宽度分别为 3.6 μm(SD = 0.5)和 2.2 μm(SD = 0.5)。这些标本的 18S 和 28S 核糖体 RNA 序列与 Kudoa lutjanus 相同:结论:这是首次证实在鸡鲩中爆发 K. lutjanus,其再次出现并造成大量死亡,应向水产养殖业敲响警钟。
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First report of a Kudoa lutjanus outbreak in farmed Chicken Grunts Parapristipoma trilineatum

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来源期刊
Journal of aquatic animal health
Journal of aquatic animal health 农林科学-兽医学
CiteScore
2.50
自引率
0.00%
发文量
25
审稿时长
>24 weeks
期刊介绍: The Journal of Aquatic Animal Health serves the international community of scientists and culturists concerned with the health of aquatic organisms. It carries research papers on the causes, effects, treatments, and prevention of diseases of marine and freshwater organisms, particularly fish and shellfish. In addition, it contains papers that describe biochemical and physiological investigations into fish health that relate to assessing the impacts of both environmental and pathogenic features.
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