Tor-brevifilis and procambarus-clarkii rice field mixed aquaculture method

Abstract

The invention discloses a tor-brevifilis and procambarus-clarkii rice field mixed aquaculture method. The tor-brevifilis and procambarus-clarkii rice field mixed aquaculture method includes the steps of arranging a rice field, digging annular furrows and field furrows, building field ridges, and arranging protective devices; in February, planting water plants in a layered mode, and putting snails; carrying out disinfection and fertilizing after the mixed aquaculture rice field is cleared, and breeding young procambarus clarkiis at the time one week after fertilizing, wherein the breeding density ranges from 15,000 per mu to 20,000 per mu, and the breeding time is early May; in late-May, breeding tor brevifilises, wherein the density ranges from 1,300 per mu to 1,700 per mu; respectively feeding the tor brevifilises and the procambarus clarkiis, wherein the feeding time of the procambarus clarkiis is sixteen o'clock to eighteen o'clock, the everyday feeding amount is 2% to 3% of the weight of all the procambarus clarkiis, and the everyday feeding amount of the tor brevifilises is 4% to 7% of the weight of all the tor brevifilises; managing the water quality. The tor-brevifilis and procambarus-clarkii rice field mixed aquaculture method is easy to operate and control, the attack rate of the tor brevifilises and the attack rate of the procambarus clarkiis are reduced, the survival rate of the tor brevifilises and the survival rate of the procambarus clarkiis are increased, growing is rapid, and the economic benefits of farmers are high.

Description

technical field [0001] The invention relates to the field of culture technology, in particular to a method for polyculture of clamfish and Procambarus clarkii in rice fields. Background technique [0002] Osteophytes belong to Osteostichthyes, Cyprinidae, Cyprinidae, Subfamily Cyprinidae, Osteophytes, and Osteophytes subgenus. They are widely distributed in the Lancang River, Yuan River, Yangtze River, Pearl River and other water systems in my country. They are only seen in Vietnam abroad. of the Red River system. The growth rate of the petaled fish is average. The body length of 1 winter age fish is 19-19.5 cm; the body length of 2 winter age fish is 27.6 cm; the body length of 3 winter age fish is 33.8-34.6 cm; 0.5-1 kg, up to 8 kg, is a large and medium-sized freshwater economic fish in the production area. [0003] Different types of fish in different waters have different feeding methods and feeding habits, and even the same fish have different feeding methods and feed...

AI Technical Summary

Problems solved by technology

At present, there are relatively few studies on the polyculture of crayfish and Procambarus clarkii, and the polyculture technology is immature. In the process of polyculture, there are disadvantages of low survival rate and slow growth of crayfish and procambarus clarkii, and the economic benefits Low