Migration type adult Salmo salar mixed feed and preparation method thereof

Abstract

The invention relates to migration type adult Salmo salar mixed feed, and also relates to a preparation method of the migration type adult Salmo salar mixed feed. The migration type adult Salmo salar mixed feed is prepared from the following components in parts by mass: 15 to 25 parts of fish meal, 8 to 18 parts of euphausia superba meal, 8 to 14 parts of dry water earthworm powder, 8 to 12 parts of sargassum thunbergii powder, 8 to 12 parts of Enteromorpha powder, 6 to 10 parts of sunflower seed kernel meal, 6 to 10 parts of cottonseed meal, 4 to 8 parts of Chinese yam powder, 4 to 6 parts of houttuynia cordata, 4 to 6 parts of Malva crispa Linn., 3 to 5 parts of nightshade, 3 to 5 parts of almond powder, 2 to 4 parts of carrot powder, 2 to 4 parts of fish oil, 2 to 4 parts of soya-bean oil, 1 to 3 parts of fresh ginger, 1 to 3 parts of dandelion, 1 to 3 parts of hawthorn, 1 to 3 parts of shell powder and 2 to 4 parts of xanthan gum. The mixed feed is lower in feed coefficient, and can improve the immunity and survival rate of Salmo salar.

Description

technical field [0001] The invention relates to a fish feed, in particular to a compound feed for adult migratory Atlantic salmon; the invention also relates to a preparation method for the compound feed for adult migratory Atlantic salmon. Background technique [0002] Atlantic salmon (Salmosalar), also known as "salmon", is a fish of Salmoniformes, Salmonidea, and Salmonidae. It is divided into two types: migratory type and land-sealing type. It is native to the Pacific coast of North America. It is a cold-water fish. Under natural conditions It mostly grows in water bodies where the water temperature does not exceed 20°C all year round and the water quality is oligotrophic. It is a worldwide farmed fish with relatively stable genetic variability and high nutritional value. Atlantic salmon is rich in protein and polyunsaturated fatty acids, and has a good therapeutic effect. It is a representative of rare cold-water fish. [0003] Land-enclosed Atlantic salmon live in fre...

AI Technical Summary

Problems solved by technology

Although our country has invested tens of millions and spent more than ten years in research on salmon, it is still in the state of exploration and basic application research, and the progress is slow, which has led to the inability to carry out large-scale high-density farming of Atlantic salmon

At this stage, one of the main problems in the large-scale artificial breeding of Atlantic salmon is that there are few researches on its nutrition and physiology and it is at the basic stage. Other freshwater fish, which are more different from other livestock species, prepare an artificial compound feed that meets the growth, metabolism and nutritional needs of Atlantic salmon adults to improve the immunity of Atlantic salmon and improve the survival of migratory Atlantic salmon adults It is an urgent problem to be solved in the farming of Atlantic salmon to reduce the incidence rate of Atlantic salmon, to reduce the incidence of Atlantic salmon, to be conducive to the growth of Atlantic salmon, to be stable in the water, not to pollute the water quality, to settle and decompose slowly, and not to cause long-term turbidity in the cultured water.

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