Method for preparing flaky prawn seedling starter feed

Abstract

The invention discloses a method for preparing a flaky prawn seedling starter feed, which comprises the following steps: crushing a mixture of fish meal, chicken meal, beer yeast, squid powder, wheat flour and mineral elements into 120-300-mesh particles; uniformly stirring the particles so as to obtain a powdered material; uniformly homogenizing egg powder and artemia into a 200-300-mesh productby using a colloid mill, and adding a mixture of betaine, fish oil, soybean lecithin and vitamins into the obtained product to carry out emulsifying homogenization, thus obtaining emulsified liquid; and mixing the powdered material with the emulsified liquid, adding water into the obtained mixture, then carrying out drum drying and vacuum drying, and cooling to obtain the flaky prawn seedling starter feed, wherein the mass of the water accounts for 30-50% of the total mass of the raw materials, the temperature for drum drying is 100-200 DEG C, and the vacuum degree for vacuum drying is 60-90kPa. By using the method disclosed by the invention, the bioactivities of fresh raw materials and unstable nutrition elements such as fish oil and vitamins and the like in the feed formula can be effectively kept, and the food calling performance and utilization ratio of the feed can be improved. The prepared flaky prawn seedling starter feed is complete in nutrition, and can promote the metabolousdevelopment of prawn seedlings, improve the growth performance of prawn seedlings, enhance the disease resistance and anti-excitability capacities of prawn seedlings, improve the ambient water quality of aquaculture water bodies and enhance the survival rate of prawn seedlings.

Description

Technical field: [0001] The invention relates to a preparation method of prawn feed, in particular to a preparation method of sheet-shaped prawn seed opening feed. Background technique: [0002] At present, the main species of Penaeus cultured in my country include Penaeus vannamei Boone, Penaeus monodon, Penaeus chinensis and Metapenaeus ensis. Distributed in coastal areas from south to north, the annual output is nearly 4 million tons, and the output value is nearly 150 billion. A complete industrial chain of seed cultivation, breeding, processing and export has been formed. In view of the fact that shrimp farming has become the main shrimp farming species in my country, and its scale is also expanding, the cultivation of shrimp seedlings has also become a key issue in the development of the industry. High-quality shrimp seedlings that are safe and healthy, with neat specifications and fast growth speed are the necessary guarantee for the development of the industry. The ...

AI Technical Summary

Problems solved by technology

[0003] At present, domestic prawn seed cultivation mainly relies on natural bait such as Artemia, which is expensive, cumbersome to operate, and is easy to pollute water quality. The nurturing of openings brings inconvenience

Some other feeds manufactured by existing technology cannot be selected according to the growth and physiological digestion characteristics of prawn seedlings, and the production process is also very easy to destroy nutrients, resulting in these feeds are not suitable for feeding shrimp larvae, and the utilization rate is not high. It is easy to pollute the water quality, which is not conducive to the large-scale production and cultivation of shrimp fry