Ecological breeding method for eriocheir sinensis

Abstract

The present invention relates to a method for ecological breeding of Chinese mitten crabs, comprising the following steps: firstly, determining a pond for the cultivation of Chinese mitten crabs; secondly, planting aquatic plants in the breeding ponds every January-February; thirdly, 2-2 In March, stock Chinese mitten crab species in the breeding pond; fourth, in late March, feed animal bait into the breeding pond; fifth, in early April, start to put snails in the breeding pond; sixth, 4 In the second ten days of the month, set up insecticidal lamps in the breeding ponds; seventh, in May-September, apply EM bacteria to the breeding ponds; eighth, in the first ten days of August, start to add plant bait to the breeding ponds; ninth, in August In the second half of the year, the animal bait was added to the breeding ponds. The invention greatly reduces the input of compound pellet feed and other baits, significantly reduces the cost of production input, supplements EM bacteria to eliminate toxic and harmful substances, realizes only water intake without changing water, and does not apply any drugs, basically realizing The breeding of pollution-free high-quality Chinese mitten crabs.

Description

technical field [0001] The invention relates to a method for cultivating Chinese mitten crabs, in particular to a method for ecologically cultivating Chinese mitten crabs. Background technique [0002] Chinese velvet crabs, commonly known as river crabs and hairy crabs, are mainly distributed in the three major freshwater water systems of the Yangtze River, Liaohe, and Oujiang rivers in my country. One of the main ways. As a treasure among aquatic products, Chinese mitten crab is deeply loved by people because of its delicious taste, tender meat and rich nutrition. At present, the artificial breeding area of ​​Chinese mitten crab is about 15 million mu, the annual output is about 600,000 tons, and the annual output value is about 50 billion yuan. The two main baits for Chinese mitten crabs in the middle of the feeding, the remaining bait spoilage will easily lead to the deterioration of the water quality of the culture pond, and frequent water changes during the period will...

AI Technical Summary

Problems solved by technology

At present, the artificial breeding area of ​​Chinese mitten crab is about 15 million mu, the annual output is about 600,000 tons, and the annual output value is about 50 billion yuan. The two main baits for Chinese mitten crabs in the middle of the feeding, the remaining bait spoilage will easily lead to the deterioration of the water quality of the culture pond, and frequent water changes during the period will also pollute the surrounding water, and in addition, the fertilizers and various drugs in the culture pond Disorderly abuse will also pollute the surrounding land and water sources. The penetration of various drugs into the ground will aggravate the pollution of ground water sources. The remaining drugs in the crab body are also a food safety hazard. These conditions are directly or indirectly affecting the ecological environment and human health.