Microparticle feed for sturgeon fry and processing method of same

Abstract

The invention relates to a microparticle feed for sturgeon fry and a processing method of same. The microparticle feed for the sturgeon fry comprises the following components by weight percet: 50-60 percent of fish meal, 10-15 percent of hydrolyzed fish protein, 10-15 percent of yeast powder, 5-10 percent of wheat flour, 3-5 percent of amylose, 5-6 percent of fish oil, 0.1-0.2 percent of choline chloride, 0.1-0.7 percent of lysine, 0.1-0.6 percent of methionine, 1-2 percent of betaine, 0.1-0 .3 percent of protease, 0.2-0.4 percent of lipases and 1-3 percent of compound vitamin and 1-3 percentof compound mineral substance. The processing method of the microparticle feed comprises the following steps: 1), weighing the components; 2), mixing the weighed raw materials primarily; 3), performing ultrafine grinding; 4), mixing the weighed raw materials primarily secondarily and stirring; 5), heating and curing by using a processing device; 6), extruding and granulating; 7), drying; 8), cooling by using a cooler; 9), crushing by using a roller-type crusher; 10), spraying; 11), screening; and 12), packaging. The microparticle feed for the sturgeon fry has the advantages of comprehensive nutrition, good phagostimulant performance, low settling speed, stability of the microparticle feed for the sturgeon fry in water as long as 24 hours without collapsibility, and the like.

Description

technical field [0001] The invention relates to a feed for aquaculture, in particular to microparticle feed for sturgeon seedlings and a processing method thereof. Background technique [0002] In taxonomy, sturgeon fishes belong to Osteophytes, Actinopterygii, Sclerophyta, and Sturgeoniformes. They are a kind of ancient creatures with a history of 140 million years. It is a "living fossil" with high nutritional value. The medicinal value of sturgeon is also recorded in detail in "Compendium of Materia Medica": "(Sturgeon) liver is mainly used to treat malignant sores; Deficiency lowers the qi; the seed is like a small bean, eats it for bodybuilding, and kills abdominal worms." [0003] Sturgeon is favored by consumers because of its rich nutritional value. With the continuous extension of the deep processing industry chain of sturgeon, the market demand for sturgeon has increased significantly, especially the supply of large-scale commercial fish is far from meeting marke...

AI Technical Summary

Problems solved by technology

[0004] When people were cultivating sturgeon seedlings in the early days, the open bait they fed was mainly biological bait (such as nematodes) caught in rivers and lakes. Because these baits are not nutritious enough and easy to carry germs, sturgeon fry will appear during production. Insufficient nutrition and infection by germs greatly reduce the survival rate of seedlings

At the same time, if the sturgeon seedlings eat this kind of live bait for a long time, they will become dependent on biological bait, and it will be difficult to domesticate with artificial compound feed in the later stage. The value of artificial breeding is lost because it cannot be used for factory farming

In addition, the acquisition of live bait is greatly affected by the environment, there is a large randomness, and sufficient supply cannot be guaranteed, which makes the nursery work face potential risks. Therefore, it is more urgent to provide special compound feed for sturgeon fry

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