Cultivation method of polyculture of California weever and yellow-head catfish

Abstract

The invention discloses a cultivation method of polyculture of California weever and yellow-head catfish, which belongs to the technical field of aquaculture, and relates to biological and ecological habits of California weever, yellow-head catfish, silver carp and spotted silver carp, in particular to a 5-30-mu and 1.8-2.8-meter deep pond chosen for the polyculture of the California weevers and the yellow-head catfish and technologies and methods such as a strict preliminary processing, reasonable fish seeds stocking time and density, the mixed feeding of iced fresh fish and extruded feeds, the water quality management, the disease control, the fishing and harvest and the like. The California weevers do not have strong feeding desire for fish blocks and fish mince sink to the bottom of the pond so that the rot of residues of the iced fresh fish is caused with water quality rotten and bacteria breeding. In the California weevers cultivation pond, the yellow-head catfish are polycultured for feeding food residues, the silver carps are polycultured for controlling the generation of blue algae, and the spotted silver carps are polycultured for controlling the generation of plankton, thereby the balance and stability of cultivation eco-system is maintained in the pond, substance and energy flow smoothly in the system, the water quality environment is good, the constitution of cultivated aquatic animals is healthy, the possibility of disease occurring is reduced, the feed coefficient is lowered, and the culture benefit is increased. The method is feasible in technology, which is pioneering in the domestic California weever cultivation field, and is convenient to be applied for cultivation enterprises and aquatic farmers, thereby owning broad prospects.

Description

technical field [0001] The invention relates to a scientific breeding method for California perch, in particular to pond selection, pre-treatment, stocking of fish fingerlings, feed feeding, water quality management, disease prevention and control, fishing and harvesting and other methods for polycultured yellow catfish in California perch. Background technique [0002] The scientific name of California perch is largemouth bass (Micopterus salmoides), which is native to North America. It belongs to the order Perciformes, Sunfish family, and Perch genus in taxonomy. It is a typical carnivorous freshwater fish. It was introduced from abroad in the 1980s. It has achieved success in breeding and breeding, and is now an important economically farmed freshwater fish in my country. The breeding area covers the main aquaculture provinces such as the Pearl River Delta and the Yangtze River Delta; Commonly known as yellow wax ding, thorny fish, yellow bone fish, etc., it is an important...

AI Technical Summary

Problems solved by technology

[0008] California perch and yellow catfish, the current main breeding technology is still in monoculture and intensive culture, and the level of high yield is constantly pursued, and the water quality is deteriorating, the disease is increasing, the feed coefficient is increasing, and the breeding efficiency is declining.