High-astaxanthin rice shrimp breeding method

Abstract

The invention discloses a high-astaxanthin rice shrimp breeding method. The method is characterized by comprising the following steps that (1) soil is managed, farmyard manure is applied, and avermectins is adopted for soil treatment; (2) a rice shrimp field is divided into a breeding protecting dam, a rice shrimp breeding ditch and a paddy rice planting area, and protected with two layers of nylon nets so as to reduce rice shrimp escaping; (3) water plants are transplanted at a water surface area ratio of 25-30%; (4) young shrimps of 2-4 cm long are put into the field at the amount of 2400-2800 per mu, water in the rice field is changed through a water pump regularly, and the oxygen content in the water are increased; (5) for breeding management, rice shrimp feed is prepared, the adding amount of the rice shrimp feed is changed according to the growth phase, and the rice field is sprayed with a multi-bacterium biological agent. Through the preparation of the rice shrimp feed and the feeding method, the high-astaxanthin rice shrimp breeding method can improve the water quality environment of the rice field, promote the content improvement of astaxanthin in the rice shrimp, and meanwhile improve the yields of the bred rice shrimp and the rice. The high-astaxanthin rice shrimp breeding method has the advantages of being simple, practical and obvious in effect.

Description

technical field [0001] The invention belongs to the technical field of agricultural breeding, and in particular relates to a rice and shrimp breeding method with high astaxanthin content. Background technique [0002] Crayfish, also known as Procambarus clarkii, red crayfish and freshwater crayfish, feed on aquatic plants, algae, aquatic insects, animal carcasses, etc. Shrimp meat is also rich in magnesium, zinc, iodine, selenium, etc. Magnesium is beneficial to the heart Activity has an important regulatory effect, can protect the cardiovascular system, and can also expand the coronary arteries, which is beneficial to the prevention of hypertension and myocardial infarction; crayfish contains astaxanthin, which is a strong antioxidant with antioxidant properties. The effects of anti-tumor, cancer prevention, immunity enhancement, and vision improvement have promoted the third wave of preventive drugs. Crayfish itself does not produce astaxanthin, but mainly obtains astaxan...

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. 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, causing poisonous effects on crayfish

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