Method for breeding rice crayfishes with high astaxanthin content

Abstract

The invention discloses a method for breeding rice crayfishes with a high astaxanthin content. The method comprises the following steps of 1) breeding field selection; 2) rice field treatment; 3) water quality improvement; 4) crayfish seed stocking; 5) crayfish feed feeding; 6) water quality regulation and control; and 7) breeding management. The invention belongs to the technical field of agricultural breeding, and particularly provides the method for breeding rice crayfishes with a high astaxanthin content with the advantages of no pollution, low investment, fast effect taking, capability ofimproving the astaxanthin content, crayfish disease infection difficulty, high survival rate of crayfishes and high growth speed of crayfishes.

Description

technical field [0001] The invention belongs to the technical field of agricultural breeding, and specifically refers to a rice and shrimp breeding method with high astaxanthin content. Background technique [0002] In recent years, the crayfish market is freshwater economical shrimp, which is widely welcomed by people because of its delicious meat. Because of its omnivorous nature, fast growth rate and strong adaptability, it forms an absolute competitive advantage in the local ecological environment. Its food range includes aquatic plants, algae, aquatic insects, animal carcasses, etc. It also kills each other when food is scarce. Crayfish has become an important economically farmed species in China in recent years. With the continuous improvement of people's living standards, people's requirements for quality of life are getting higher and higher, and people's requirements for diet quality are also very high. People's demand for crayfish with rich nutritional value is a...

AI Technical Summary

Problems solved by technology

During artificial breeding, the feedstuffs are mainly wheat bran, fish meal, peanut cake and clam shell powder. Fish meal and clam shell contain more calcium components, but the content of astaxanthin is very small, which cannot meet the needs of crayfish in the breeding process. Demand

In the paddy field farming mode, transplanting water plants such as water hyacinth and water peanuts in rice fields is conducive to increasing the content of astaxanthin in crayfish, but the content of astaxanthin in water plants such as water hyacinth and water peanuts and feeding feed is also difficult to increase. To meet the needs of crayfish; moreover, the rice field planting soil, the organic components in the soil and the organic components of the feed dispersed in the water are decomposed into ammonia, which increases the ammonia nitrogen content in the water, and the water body is prone to eutrophication, which is harmful to the crayfish. The quality of the water body is polluted to varying degrees, which makes the living environment of crayfish continue to deteriorate, making crayfish very susceptible to diseases, which needs to be improved urgently