Kim Bo-Seong, Jang Gwang-Il, Kim Su-Mi, Kim Young-Sook, Jeon Yu-Gyeong, Oh Yun-Kyeong, Hwang Jee-Youn, Kwon Mun-Gyeong
Aquatic Disease Control Division, National Fishery Products Quality Management Service, 216 Gijanghaean-ro, Gijang-eup, Gijang-gun, Busan 46083, Korea.
Animals (Basel). 2021 Nov 4;11(11):3150. doi: 10.3390/ani11113150.
The consumption of cultured crustaceans has been steadily increasing, and Pacific whiteleg shrimp () are major cultivated invertebrates worldwide. However, shrimp productivity faces a variety of challenges, mainly related to outbreaks of lethal or growth retardation-related diseases. In particular, hepatopancreatic microsporidiosis caused by the microsporidian parasite (EHP) is an important disease associated with growth retardation in shrimp. Here, we report the detection of EHP through histopathological, molecular and electron microscopy methods in the hepatopancreas of Pacific whiteleg shrimp with growth disorder in a South Korean farm. Phylogenetic analysis showed a clade distinct from the previously reported EHP strains isolated in Thailand, India, China and Vietnam. An EHP infection was not associated with inflammatory responses such as hemocyte infiltration. Although EHP infection has been reported worldwide, this is the first report in the shrimp aquaculture in Korea. Therefore, an EHP infection should be managed and monitored regularly for effective disease control and prevention.
养殖甲壳类动物的消费量一直在稳步增长，太平洋白对虾（ ）是全球主要的养殖无脊椎动物。然而，对虾生产力面临着各种挑战，主要与致死性或生长迟缓相关疾病的爆发有关。特别是，由微孢子虫寄生虫（EHP）引起的肝胰腺微孢子虫病是一种与对虾生长迟缓相关的重要疾病。在这里，我们报告了通过组织病理学、分子和电子显微镜方法在韩国一个养殖场生长异常的太平洋白对虾的肝胰腺中检测到EHP。系统发育分析显示，该分支与先前在泰国、印度、中国和越南分离的EHP菌株不同。EHP感染与血细胞浸润等炎症反应无关。尽管EHP感染在全球范围内都有报道，但这是韩国对虾养殖中的首次报告。因此，为了有效地控制和预防疾病，应定期管理和监测EHP感染。
