摘要:
本文报道南海鱼虱[Caligus nanhaiensis Wu & Pan],引起的石斑鱼鱼虱病病理变化的研究结果。南海鱼虱对青石斑鱼[Epinephelus awoara(Temminck et Schlegel)]的危害主要是由于桡足幼体或对寄主组织的大量摄食,导致鳃部组织的完整性受到破坏,使寄主的生理功能受损害而引起病变。患病鱼的红细胞数、血清钠、钾、钙、血糖、尿素氛、胆固醇、白蛋白和总蛋白的含量与健康鱼比较,仅见红细胞数减少和血清钙的增加变化明显。
关键词:
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青石斑鱼
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鱼虱病
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病理学
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南海鱼虱
Abstract:
Pathological changes of tissues and blood of the banded grouper, Epinephelus awoara, infected with the copepod, Caligus nanhaiensis, were reported. The copepod is harmful to the host as it feeds on the tissue of the gills, resulting in the breaking of the gills. The hssue proliferation was not observed in the damaged gills, but the increase of mucus secretion observed. Blold vessels were broken resulting in hemorrhage, and the end of gill filaments became pale. As the blood indices of diseased fish, the quantity of erythrocytes per unit volume became less than the health fish, but the level of serum calcium content was higher than the health. Significant changes in contents of potassium, sodium, urea nitrogen, glucose, cholesterin, albumen,total protein in serum were not observed.
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