Litopenaeus vannamei culture feed and culture method

Abstract

The invention discloses a litopenaeus vannamei culture feed and culture method. The culture feed comprises a basic feed and an auxiliary feed, the basic feed reduces the content of fish meal, corresponding vegetable proteins are used for replacement, and a plurality of components (sugar source, fat source, vitamin, mineral substance and the like) are compounded, so that the production cost is reduced; and the auxiliary feed is added in different stages of vannamei culture, so that the adaptability of the feed to vannamei growth and development is improved. According to the litopenaeus vannameiculture method, according to the characteristics of the litopenaeus vannamei in different growth periods, different feeds are matched, oxygenation of different degrees is carried out, meanwhile, a water quality improver is periodically added to regulate and control a culture water body, so that the growth speed of the litopenaeus vannamei is remarkably increased, and the survival rate and the disease resistance are improved.

Description

technical field [0001] The invention belongs to the technical field of aquaculture, and in particular relates to a culture feed and a culture method of Litopenaeus vannamei. Background technique [0002] Litopenaeus vannamei, also known as Penaeus vannamei, Penaeus vannamei, Penaeus whiteleg, etc., is one of the world's three major economically farmed prawns. It can adopt various farming modes such as pure fresh water, brackish water, and sea water. China is Vanname The countries with the highest cultured area and output of Litopenaeus shrimp are mainly distributed in the southern coastal areas. [0003] Fish meal has the advantages of high protein content, rich in essential amino acids for animals, and can be digested and absorbed by animals. It has always been an indispensable high-quality protein source in aquatic feed, especially carnivorous aquatic animal feed. With the rapid development of the aquaculture industry, the demand for fishmeal has risen sharply, and the pr...

AI Technical Summary

Problems solved by technology

With the rapid development of the aquaculture industry, the demand for fishmeal has risen sharply, and the price of fishmeal has continued to soar, which has increased the cost of feed manufacturers and aquaculture producers, seriously restricting the development of Litopenaeus vannamei aquaculture

[0004] In addition, due to the high nutritional requirements and low absorption capacity, only 70% of the fed protein can be absorbed in the culture process of Litopenaeus vannamei, and the rest that cannot be used exists in the culture water, resulting in excessive ammonia nitrogen discharge. Environmental pollution problems, therefore, low fishmeal feed is a major trend in the development of today's feed

[0005] In the existing low-fishmeal feed, plant-based protein raw materials are often used to replace fishmeal, which significantly reduces production costs. However, there are problems such as poor palatability, low feed utilization rate, slow growth rate of fed prawns, and poor disease resistance.

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