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在江苏扬州的罗氏沼虾(Macrobrachium rosenbergii)养殖区,选取具“白体病”典型症状的活体仔虾和幼虾,对其腹部肌肉的病变部位进行显微和超微结构观察,未见病原生物;光镜下未见明显病理变化;其超微病理变化主要在病程中后期可见,病变部位肌丝断解、形成肌溶灶;线粒体变性、并呈空泡化;特别是肌原纤维间脂滴明显增多,呈串珠状排列。分析该病可能是一种线粒体肌病,属脂质沉积性肌病。
In the culture area of Macrobrachium rosenbergii in Yangzhou, Jiangsu Province, the live larvae and juveniles with the typical symptoms of “somatic diseases” were selected to observe the microscopic and ultrastructural changes of the diseased parts of their abdominal muscles without pathogen Biological; no obvious pathological changes under the light microscope; the ultrastructural pathological changes are mainly seen in the late course of the disease, the diseased part of the myofilament disruption, the formation of muscle lesions; mitochondria degeneration and vacuolization; especially myofibril Lipid significantly increased, was beaded arrangement. Analysis of the disease may be a mitochondrial myopathy, is a lipid deposition myopathy.