A kind of pond catfish and tilapia polyculture method

Abstract

The invention relates to a method for polyculture of yellow catfish and tilapia in a pond. The method comprises the following steps: after the pond is disinfected with quicklime every year, large-sized yellow catfish fingerlings are stocked in March, and when the water temperature of the pond is stable above 18° C. , stocking large-sized overwintering masculinized tilapia fry. Through domestication and feeding, the yellow catfish and tilapia are fed separately in different feeding areas, and the tilapia is fed first and then the yellow catfish is fed. Oxygenation is increased by microporous oxygenation and waterwheel aerator, and compound microecological preparations are regularly sprinkled to adjust water quality. Tilapia are raised and caught in advance until August-September, which reduces the breeding density in ponds and provides more space for the growth of yellow catfish in the later period. The invention utilizes the different biological characteristics and feeding characteristics of yellow catfish and tilapia, adopts the separate feeding and feeding technology in the same pond, and through reasonable collocation, fully utilizes the water body space of the cultivating pond, improves the feed utilization rate, increases production and efficiency, and improves the The role of breeding benefits and reducing breeding risks.

Description

technical field [0001] The invention belongs to the field of aquaculture and relates to a polyculture technology of aquatic products, in particular to a method for polyculture of peltago catfish and tilapia in ponds. Background technique [0002] Peeled catfish and tilapia are the main characteristic species of freshwater pond farming in my country. Among them, the market price of peltago catfish has been relatively strong, and the economic benefits of farming have been relatively high, and gradually formed a nationwide "small variety, large market, high benefit" Farmed species; Tilapia is known as "the fish of the 21st century" and "the fish of the future". It is a global aquaculture species and one of the pillar industries for exporting aquatic products in southern my country. [0003] Yellow catfish ( Pelteobagrus fulvidraco ), Siluriformes (Siluriformes), Bagridae (Bagridae), Peeled catfish ( Pelteobagrus ), commonly known as yellow wax ding, Ang stickleback, yellow-bo...

AI Technical Summary

Problems solved by technology

[0004] At present, the polyculture species of yellow catfish in ponds are mainly the "four major fish", such as silver carp and bighead carp, and there are also a few other farming methods, such as yellow catfish and soft-shelled turtle, and Penaeus vannamei, and river crab, and California perch, red bream, green shrimp, and crayfish are mixed or rotated. However, in these farming models, yellow catfish is mainly a nested species. The risk is high, and the space for application and promotion is small. It is difficult for ordinary farmers to control this farming model, and there are certain limitations.

The main culture mode of peltago and tilapia is still single culture, intensive culture or rotation of the two species. The culture density is high and the yield is high, which is prone to disadvantages such as deterioration of water quality, increase of diseases, high feed coefficient, and decline in breeding efficiency.

So far, there have been no research reports on the polyculture of peltago catfish and tilapia in ponds. The main reason is to solve the stocking specifications, density and order of the two, the feeding methods of feed and related farming management measures.