Preparation method of feed capable of promoting growth of fish bred in fresh water

Abstract

The invention discloses a preparation method of a feed capable of promoting the growth of fish bred in fresh water. The preparation method comprises the following steps of preparing liposome, compounding a traditional Chinese medicine preparation, modifying bran, fermenting soybean meal and performing compounding. The preparation method has the beneficial effects that through modification and fermentation, the anti-nutritional factors of urease activity restraining factors, trypsin restraining factors, stachyose, raffinose and the like in the feed can be significantly reduced, and the contentof flavacin is also effectively controlled, so that indigestion and anaphylaxis after the fish eat the soybean meal can be reduced, the utilization rate of the feed is increased, and the breeding efficiency is improved; the feed is comprehensive and balanced in nutrients, not only is rich in nutrient elements of protein, amino acids, fatty acids, vitamins, minerals and the like necessary for growth and development of freshwater fish, but also is good in palatability; the food intake is increased, the endocrine system of the fish can be stimulated, the metabolism can be regulated, and the utilization rate of the feed can be increased; and the feed is comprehensive, efficient and safe and can promote the growth of the fish bred in the fresh water.

Description

technical field [0001] The invention relates to the field of preparation of freshwater fish feed, in particular to a preparation method of a feed for promoting the growth of freshwater cultured fish. technical background [0002] Broadly speaking, freshwater fish refers to fish that can live in fresh water with a salinity of three thousandths. There are more than 26,000 known species of fish in the world, which is the most diverse group of vertebrates, accounting for about 48.1% of the total number of vertebrates. Most of them live in the ocean, and there are about 8,600 species of freshwater fish. There are nearly 3,000 species of fish in my country, including more than 1,000 species of freshwater fish. Most freshwater fish have special colors and markings, or body colors consistent with the surrounding environment, which can hide themselves, or confuse enemies and prey, so as to protect themselves or sneak attack prey. In shallow water, the body color of fish is usually...

AI Technical Summary

Problems solved by technology

[0004] The Chinese invention patent of CN 103340334 B discloses a freshwater fish feed and its preparation method. The invention method uses imported fish meal, peanut meal, rapeseed cake, flour, potato starch, brewer's yeast, soybean meal, corn flour, cooked Freshwater fish feed is prepared by pulverizing and mixing egg whites, which can meet the nutritional needs of freshwater fish, improve the immunity of freshwater fish, promote intestinal absorption, and improve the production performance of freshwater fish. However, the imported fish meal in the inventive method is expensive. Moreover, soybean meal and peanut meal are added to the feed without fermentation. Anti-nutritional factors such as urease, trypsin inhibitor, stachyose, and raffinose in soybean meal and peanut meal will reduce the nutritional content of raw materials. Toxins will cause pollution, and even cause indigestion and allergic reactions in fish, so its promotion value is not great