Cold water fish feed and preparation method thereof

Abstract

The invention relates to the technical field of aquaculture, in particular to a cold water fish feed. The cold water fish feed comprises the following raw materials in parts by mass: 20-40 parts of red fish meal, 15-25 parts of blood powder, 8-12 parts of soybean meal, 15-25 parts of corn protein powder, 8-12 parts of tapioca, 3-8 parts of conch meal, 8-12 parts of distillers' grain powder, 1-3 parts of table salt, 12-18 parts of Chinese herbal medicines, 3-8 parts of composite amino acids, 3-8 parts of composite vitamins and 4-6 parts of composite microbes. The feed disclosed by the inventioncan effectively promote growth of cold water fish, the safety of the feed is guaranteed, and besides, the utilization rate of the feed is also increased. Through the adoption of the feed disclosed bythe invention, the composition structure of nutrient components is regulated, the organism immunity of the cold water fish is strengthened, the growth and the development of the immune system and thedigestive system of organisms of the cold water fish can be guaranteed, the risk that the cold water fish is infected with a disease is reduced, the survival rate of the cold water fish is increased,and guarantee is provided for increasing the yield of adult fish.

Description

technical field [0001] The invention relates to the technical field of aquaculture, in particular to a cold water fish feed and a preparation method thereof. Background technique [0002] Cold water fish refers to fish that are adapted to living and growing in lower water temperature. Its characteristics are: high protein, low fat, delicious meat, and rich nutrition. Cold water fish farming requires very high water quality and is slightly polluted, that is, no survival. , is regarded as a natural green food by the industry, and because of this, cold-water fish has become a fashionable aquatic product pursued by modern people, with extremely high breeding value. [0003] Cold-water fish is a kind of fish that is easy to be infected with various diseases, and the incidence of infectious diseases is relatively high. It will cause cross-infection, eventually cause very serious economic losses, and will also cause immeasurable damage to the ecological environment; China's cold-w...

AI Technical Summary

Problems solved by technology

[0003] Cold-water fish is a kind of fish that is easily infected with various diseases, and the incidence of infectious diseases is relatively high. In the process of large-scale farming, due to the continuous increase of the breeding density and the continuous expansion of the breeding area, once infected with diseases, it is often Cause cross-infection, eventually cause very serious economic losses, and will also cause immeasurable damage to the ecological environment; China's cold-water fish farming is still in its infancy. After several years of farming, it has been found that cold-water fish have high mortality and relatively slow growth. However, the breeding efficiency of the breeder is greatly damaged. Although the breeder has made some improvements or updates in fish feed, feed additives or breeding methods, the survival rate or mortality rate and disease resistance of the fish have not been significantly improved. At the same time , cold-water fish farming has very high requirements on water quality, slightly polluted, that is, no survival, but cold-water fish is a carnivorous fish, and its growth and development require high-energy feed with comprehensive nutrition. Therefore, when breeding cold-water fish, some Breeders add high-quality fishmeal, bean cake, and wheat flour to the compound feed as basic raw materials, add a variety of vitamins, minerals, oils, etc., and increase the amount of input to further promote the growth of cold-water fish and achieve the purpose of rapid economic growth. However, such This method not only leads to unreasonable formula, which leads to the inability of cold-water fish to digest the feed to the maximum extent, and slow growth. At the same time, the residual feed residue may further pollute the water source, which accelerates the disease and even death of cold-water fish. Therefore, for The nutritional requirements of cold-water fish and the characteristics of the living environment require that it is of great practical and economic significance to prepare feed suitable for the survival and growth of cold-water fish. At the same time, it also provides a new way of thinking for cold-water fish farming.