Preparation method of feed for increasing fat utilization rate of tilapia

Abstract

The invention provides a preparation method of a feed for increasing the fat utilization rate of tilapia. The preparation method comprises the following steps of 1) taking corn, wheat, soybean meal, cottonseed meal, peanut cakes, rice bran and trehalose, mixing, and crushing so as to obtain a mixed material; 2) mixing tannic acid with ethyl maltol and glycerine, heating in a water bath, adding soybean phospholipid oil, and mixing so as to obtain a tannic acid compound; 3) adding the tannic acid compound, wheat germ fermentation powder, spirulina fermentation powder and chitosan oligosaccharide to the mixed material, and performing conditioning with steam so as to obtain a primary conditioning mixed material; 4) mixing fish oil with calcium hydrogen phosphate, fish multi-vitamins and multi-minerals and an emulsifying agent, adding the primary conditioning mixed material, and performing continuous stirring so as to obtain a premix; and 5) performing secondary conditioning on the premix, puffing, drying, and cooling so as to obtain the tilapia feed. According to the preparation method disclosed by the invention, the problems that the tilapia feed is poor in palatability and low in stability are solved, the fat utilization rate of the tilapia is increased, the digestive absorption of the feed is strengthened, the ingestion rate is increased, and the feed is suitable for growth and development of large-scale breeding of the tilapia.

Description

technical field [0001] The invention relates to the technical field of aquaculture feed, in particular to a method for preparing feed for improving the fat utilization rate of tilapia. Background technique [0002] Tilapia, also known as longevity fish, African crucian carp, South Sea crucian carp, etc., is native to Africa and is a tropical fish. It is the main aquaculture aquatic product in my country, and its output accounts for more than half of the world's total. With the rapid development of intensive tilapia farming and the popularization of compound feed, the demand for tilapia feed continues to increase. In order to meet the needs of large-scale tilapia farming , the fat content of existing tilapia feed formula is relatively high, but tilapia has low feed digestibility, often occurs tilapia liver syndrome, which is unfavorable for the health and growth of tilapia, and reduces the quality of aquatic products. [0003] At present, the burden on the liver is usually re...

AI Technical Summary

Problems solved by technology

It is the main aquaculture aquatic product in my country, and its output accounts for more than half of the world's total. With the rapid development of intensive tilapia farming and the popularization of compound feed, the demand for tilapia feed continues to increase. In order to meet the needs of large-scale tilapia farming , the fat content of the existing tilapia feed formula is relatively high, but the digestibility of the feed by tilapia is low, and tilapia liver syndrome often occurs, which is unfavorable for the health and growth of tilapia, and reduces the quality of aquatic products

[0003] At present, the burden on the liver is usually reduced by reducing the proportion of fat content in the feed, or adding traditional Chinese medicine extracts to the feed to improve intestinal digestion and absorption, so as to improve and enhance the intestinal digestion of tilapia, but the former It is often unable to meet the growth and nutritional needs of tilapia intensive farming, and the latter will easily lead to a great reduction in the palatability of tilapia feed, poor feed stability, low feeding rate, and affect the utilization rate of tilapia feed. slow growth

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