ന്യൂസ്‌ അപ്പ്‌ഡേറ്റ്

VHS: a vesceroptropic disease of young fishes An acute to chronic vesceroptropic disease of young (fingerling to yearling) rainbow trout at 10 0 C or lower. Also in adult trouts and salmonids, but not usual. Etiology: VHSV (Viral Haemorrhagic Septicemia Virus) Viral characteristics: Bullet-shaped rhabdovirus, enveloped. Length- 180 nm, width- 70-85 nm, apical end rounded, other end flat. ss RNA, replication in cytoplasm. Sensitive to lipid solvents, detergents and proteolytic enzymes. Distribution: Trouts farms in European countries: Denmark, Italy, Germany, Switzerland and Spain (not in UK and USA). Signs and pathology: Acute: Poor feeding. High mortality. Dark skin, exophthalmia. Pale gills, anaemia. Widespread internal haemorrhages in skeletal muscles and viscera. Hyperemic and swollen kidney and liver. Empty intestine. Hemorrhages in muscle and kidney. Focal necrosis in liver. Chronic: Low mortality. Dark skin. Exophthalmia.

During these many years many of friends have been asking me doubts on fish diseases and breeding tips and ways through chats and emails and iam finding less time to attend to everyones messages and chats, here i will put some of the info so as i can redirect my friends for the benefit of fishes.... for my friends on orkut please visit my community city ornamental fish lover for more info....   Fish pox, or carp pox , is one of the oldest known diseases of fish, recorded as early as 1563. Fish pox is a chronic skin disease that occurs among several species of propagated cyprinids. It is also called carp pox, epithelioma papillosum, and papillosum cyprini. Etiology: The etiological agent, of this disease is Herpesvirus cyprini which was first reported by B. Hofer in 1904. Character: Icosahedral DNA virus with a 110-113 nm capsid diameter. With it’s envelop, it measures 190 nm in diameter. Enveloped. Geographical range and species susceptibility: Fish pox has been r