Method for culturing bighead carps in fresh water

Abstract

The invention discloses a method for culturing bighead carps in fresh water. The method comprises the following steps of: preparing a pond, namely selecting a pond with sufficient water resources and good water quality, trimming the pond, clearing weeds and impurities at the bottom of the pond, and flatting the pond; 2) disinfecting the pond, namely clearing and disinfecting the pond by use of a quick lime dry method; 3) stocking fingerlings, wherein the proportion of bighead carps is less than 20 percent or greater than 80 percent; 4) preparing and feeding a bait, namely mixing, processing and grinding poor-quality flour, dregs of fat and bran, adding water into flour, and stirring into dough for feeding, wherein granules are used as auxiliary materials, bait feeding is based on a four-setting principle, concentrated feed and green fodder can be fed according to a common practice, photosynthetic bacteria culturation is sprayed into the pond every 15-20 days during the period from April to September; 5) regulating and controlling water quality, namely after the temperature of water is increased, starting an aerator so as to ensure that dissolved oxygen is at 4mg/L or above, and detecting the water quality by use of colorimetric method; and 6) fishing adult fish, namely when bighead carps have weight not less than 2kg, fishing the bighead carps for selling.

Description

Technical field [0001] The invention belongs to the technical field of aquaculture, and specifically relates to a freshwater bighead carp breeding method. Background technique [0002] In recent years, my country’s aquaculture industry has achieved rapid development. In particular, the output of traditional freshwater aquaculture has continued to increase. However, the fish farming technology has indeed stalled. Bighead carp is also called silver carp and fat head because of the taste of its head. Delicious and nutritious, it has become a favorite and economical edible fish. But for a long time, it has only been used as a small number of collocation breeding species, and its output is low. It has not exerted its due advantages. With the continuous increase of market demand and the improvement of breeding technology, especially the emergence of biological organic fertilizers for fish, bighead carp Matching varieties have become the main breeding varieties, the yield and economic b...

AI Technical Summary

Problems solved by technology

But for a long time, it has only been used as a small number of breeding species with low output and has not exerted its due advantages. With the continuous increase of market demand and the improvement of breeding technology, especially the emergen