Abstract:
PURPOSE: An automatic continuous injection device for fishes is provided to minimize the waste of unnecessary vaccine and to efficiently perform vaccination of fishes. CONSTITUTION: An automatic continuous injection device for fishes comprises a gun type device body(1) with a handle, a syringe body(9) which is mounted on the top surface of the device body, and a pneumatic cylinder(14) which is mounted on the top surface of the device body in the rear side of the syringe body. A vaccine inflow port(12) is formed in the bottom of the syringe body. A container mounting port(11) is formed in the upper part of the syringe body. The vaccine inflow port is connected to the exit of a vaccine injection path. The entrance of the vaccine injection path is connected to a vaccine injection hose.
Abstract:
PURPOSE: A feed additive for fish using a hot water extract of complex herbal materials, and fish feed containing thereof are provided to offer an antimicrobial activity effect for the bacterial disease and a parasite insecticidal effect to cultured fish. CONSTITUTION: A feed additive for fish contains a hot water extract of complex herbal materials including sophora roots, tangerine skins, lonicera flowers, benincasa hispida cogniaux, perilla frutescens var. acuta kudo, and scutellaria baicalensis georgi. Fish feed contains 0.01wt% of hot water extract.
Abstract:
A method for controlling aquatic fungi and fish pathogenic bacteria of cultivated fish is provided to improve productivity of the cultivated fish by effectively controlling the aquatic fungi and fish pathogenic bacteria using a proper amount of an extract of Opuntia ficus-indica var. saboten Makino and provide safe aquatic products to consumers by using environment-friendly and harmless Opuntia ficus-indica var. saboten Makino extract. To exterminate aquatic fungi of fish eggs, the fish eggs are treated with 50-80 ppm of a hydrolysis fraction of Opuntia ficus-indica var. saboten Makino for 30 minutes every 3 days until the fish eggs become germinated egg. To exterminate aquatic fungi of fish, the fish is treated with 200 ppm of the hydrolysis fraction of Opuntia ficus-indica var. saboten Makino for 2 hours per day one or two times. To treat and prevent fish pathogenic bacteria of cultivated fish, 0.1% hydrolysis fraction of Opuntia ficus-indica var. saboten Makino is absorbed into an expansion pellet and the expansion pellet is administered into the cultivated fish for 4 weeks.