Hemorrhage of grass carp is the most serious disease of grass carp fingerlings during rearing stage. This disease was considered to be caused by a virus, as reported in the aetiological studies made by the researchers...Hemorrhage of grass carp is the most serious disease of grass carp fingerlings during rearing stage. This disease was considered to be caused by a virus, as reported in the aetiological studies made by the researchers of the Section of Virus Study, Laboratory of Fish Disease of this institute in 1978. In 1980, they reported the electron microscopic observations—a causative agent was found in the ultrathin展开更多
Silver carp, Hypophthalmichthys molitrix, and bighead carp, Aristichthys nobilis, habitually celebrated for their being cultured easily with fewer diseases and high-yield, have suffered from a new severe epidemic dise...Silver carp, Hypophthalmichthys molitrix, and bighead carp, Aristichthys nobilis, habitually celebrated for their being cultured easily with fewer diseases and high-yield, have suffered from a new severe epidemic disease recently. The spread of the epizootic has been far and wide, from several provinces in South China to the Beijing and Tianjin area. The affected fish suffered heavy mortafity in one week, and even died off.展开更多
文摘Hemorrhage of grass carp is the most serious disease of grass carp fingerlings during rearing stage. This disease was considered to be caused by a virus, as reported in the aetiological studies made by the researchers of the Section of Virus Study, Laboratory of Fish Disease of this institute in 1978. In 1980, they reported the electron microscopic observations—a causative agent was found in the ultrathin
文摘Silver carp, Hypophthalmichthys molitrix, and bighead carp, Aristichthys nobilis, habitually celebrated for their being cultured easily with fewer diseases and high-yield, have suffered from a new severe epidemic disease recently. The spread of the epizootic has been far and wide, from several provinces in South China to the Beijing and Tianjin area. The affected fish suffered heavy mortafity in one week, and even died off.
