A manufacturing method of yolk particles used for aquatic feed, the yolk particles, and the aquatic feed

Abstract

A manufacturing method of yolk particles used for aquatic feed, the yolk particles, and the aquatic feed are provided. The method includes freezing fresh egg yolks to a solid state, cooking the frozen yolks in water until the yolks are cooked and a solid state is formed, and processing the cooked yolks into particles. The cooked yolk particles prepared by the method, when being compared with unprocessed cooked yolk particles, are at least advantageous in that 1) hardness and elasticity are better, and the cooked yolk particles are not liable to be broken by water flow shock or movements of aquatic organisms such as fish and shrimp, so that stability in water is better; 2) the cooked yolk particles are suitable for digestion and absorption by aquatic organisms such as fish and shrimp; and 3) food ingestion of fish and shrimp is facilitated.

Description

technical field [0001] The invention relates to the technical field of aquatic feed, in particular to a method for manufacturing egg yolk granules used as aquatic feed, egg yolk granules used as aquatic feed, and aquatic feed. Background technique [0002] my country is a big country of aquatic products in the world. In 2016 alone, the output of aquatic products in my country was 69 million tons. Because in my country, the annual output of eggs is high, and the nutritional value of egg yolks is high, my country has a tradition of using boiled egg yolks as aquatic feed, especially in occasions such as cultivating fish fry. However, boiled egg yolks are easy to lose or collapse when soaked in water, which is not convenient for aquatic organisms such as fish and shrimp to eat. This not only causes sediment waste, but also makes the water quality eutrophic, which in turn causes bacterial growth, resulting in muddy and bad water, which is not conducive to fish Aquatic organisms ...

AI Technical Summary

Problems solved by technology

However, boiled egg yolks are easy to lose or collapse when soaked in water, which is not convenient for aquatic organisms such as fish and shrimp to eat. This not only causes sediment waste, but also makes the water quality eutrophic, which in turn causes bacterial growth, resulting in mudd

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