文献类型： 外文期刊

作者： Aboka, Emmanuel Rufino ¹ ; Zhu Jian ¹ ; Sun Shengming ² ; Zhang Wuxiao ¹ ; Yu Han ¹ ; Su Yan Li ¹ ; Yu Jiahui ¹ ; Zhu Jia ¹ ;

作者机构： 1.Nanjing Agr Univ, Wuxi Fisheries Coll, Wuxi 214081, Jiangsu, Peoples R China

2.Chinese Acad Fishery Sci, Freshwater Fisheries Res Ctr, Minist Agr, Key Lab Freshwater Fisheries & Germplasm Resource, Wuxi 214081, Jiangsu, Peoples R China

关键词： Bighead carp Aristichthys nobilis; temperature; stress; histopathological change

期刊名称：ISRAELI JOURNAL OF AQUACULTURE-BAMIDGEH （ 影响因子：0.287； 五年影响因子：0.593 ）

ISSN： 0792-156X

年卷期： 2017 年 69 卷

页码：

收录情况： SCI

摘要： Histopathological evaluation of fish tissues is a reliable method for detecting exposure to toxins and other environmental problems that cause stress or even death. This study aimed to evaluate histopathological changes that occur in internal organs of Bighead carp (Aristichthys nobilis) following acute high-temperature stress. By examining tissues sampled at various times after heat shock (3, 6, 12, and 24 hours), we observed considerable anatomical changes in three vital organs. In the gills, epithelial lifting and edema, blood congestion, primary lamellae thickening, and secondary lamellae curling, shortening, and fusion were evident; in the liver, karyolysis, necrosis, hyperemia, dilation of sinusoids, nuclear hypertrophy, and congestion of the central vein were observed; the kidneys displayed dilation of the Bowman's space, an increase in the diameter of the renal tubules, hyperemia, shrinkage and congestion of the glomeruli, and tubular necrosis. This analysis indicates that Bighead carp are highly susceptible to changes in environmental temperature, and rapid intervention is required in response to temperature fluctuations in aquaculture. This study should encourage aquaculturists to monitor culture temperatures for this economically important species of fish.