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Silver carp breeding method

A culture method and silver carp technology are applied in the field of fishery aquaculture, which can solve the problems affecting the survival rate and growth rate of fish, and achieve the effect of improving the growth rate and survival rate.

Inactive Publication Date: 2014-07-16
娄志
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  • Application Information

AI Technical Summary

Problems solved by technology

When silver carp is cultured, it is easy to produce diseases, which will affect the survival rate and growth rate of fish

Method used

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Embodiment Construction

[0007] A method for cultivating silver carp, comprising the following steps: (1) Disinfect with quicklime clear pond for four weeks before stocking fish species, drain and expose to the sun for three weeks after disinfection, then inject water, and use a grid to filter at the water inlet to prevent wild weeds when injecting water. When fish enter the pond, the water source should be lake water or river water with sufficient water volume and clean water quality; (2) Stocking of fish species: in mid-to-late May, when the water temperature in the pool is stable above 18°C, it is a suitable time for stocking. Put silver carp fry at a density of 3-5 per square meter. Before the fry and fingerlings enter the pond, immerse them in 2.0% salt water for 5-10 minutes for disinfection; (3). Filter-feeding mainly phytoplankton and feed debris, feeding 2-2.5% of fish weight bait each time; (4) Overwintering ponds should be relatively clean, with good water retention, and the water depth unde...

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Abstract

The invention belongs to the field of fish culture, and particularly relates to a silver carp breeding method. The silver carp breeding method comprises the following steps that (1) fishponds are cleaned; (2) fingerlings are bred; (3) feed is put in the fishponds to feed the fingerlings, after the fingerlings are put in the fishponds, the fingerlings mainly feed on plankton in a filter-feeding mode and also feed on feed scraps, and the fingerlings are fed with the feed which accounts for 2 percent to 2.5 percent of the weight of the fingerlings every time; (4) the overwintering fishponds should be clean and good in water-retaining property, the water depth underneath ice is kept to be about 1.5 meters, the fishponds are combined according to the size, 1.5-3.0 kilograms, per hectare, of 90-percent crystal trichlorfon is scattered all over each fishpond before ice blockage, the number of planktonic plants in pond water should be kept within the range from 25 mg / l to 50 mg / l, and therefore the light transmission of a water surface is maintained. According to the silver carp breeding method, the growth rate and the survival rate of silver carp breeding are increased.

Description

technical field [0001] The invention belongs to the field of fish farming, and in particular relates to a method for cultivating silver carp. Background technique [0002] Silver carp belongs to Cyprinidae of Cyprinidae and is one of the four famous big fishes. The body is flat on the sides, slightly taller, fusiform, blue-gray on the back, white on both sides and abdomen. The head is large. The eyes are set low. The scales are tiny. Pectoral fins do not extend beyond base of pelvic fins. Silver carp are impatient and good at jumping. Silver carp is a large-scale freshwater fish raised artificially. It grows fast, has few diseases, and has a high yield. It is mostly mixed with grass carp and carp. It is one of the main freshwater farmed fishes in China. When silver carp is cultured, it is easy to produce diseases, which affects the survival rate and growth rate of fish. Contents of the invention [0003] In order to solve the above-mentioned defects of the prior ar...

Claims

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Application Information

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IPC IPC(8): A01K61/00A01K61/10
CPCY02A40/81
Inventor 娄志
Owner 娄志
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