Complete extruded formula feed for Hucho taimen and preparation method thereof

Abstract

The invention discloses a complete extruded formula feed for Hucho taimen and a preparation method thereof. The complete extruded formula feed is made from the following raw materials: fish meal, cottonseed protein powders, fermented bean cake, bread flour, beer yeast, a cotton cake / rape cake mixture, calcium dihydrogen phosphate, a vitamin-mineral salt mixture, choline chloride, and dimethylpropiothetin (DMPT), wherein the cotton cake / rape cake mixture is composed of cotton cake and rape cake at a weight ratio of 1:1. The preparation method of the complete extruded formula feed for Hucho taimen comprises the steps as follows: roughly grinding large-sized raw materials to coarse powders, mixing all materials, micronizing to powders which can pass through a 100-mesh sieve, compounding, extruding to make pellets, and oven-drying. The preparation method is simple and practical and is favorable to industrial production. The complete extruded formula feed for Hucho taimen has the advantages of good palatability, high domestication speed, lower feed coefficient and good stability.

Description

technical field [0001] The invention relates to an artificial feed for fish, in particular to a full-price puffed compound feed for salmon and a preparation method thereof. Background technique [0002] Jero salmon is a cold-water freshwater carnivorous fish, mainly distributed in northern Asia. Zheluo salmon are ferocious and large in size. They prey on fish and frogs, snakes, rodents and birds that live in water. Zheluo salmon is delicious, tender and nutritious. It is a high-quality cold-water fish with high protein and low fat. It is also a special product in alpine regions and is a precious food in the production area. At present, most of the artificial cultured salmon are fed with fresh miscellaneous fish or chilled fish, but natural bait is generally difficult to meet the supply. When the supply of chilled fish or fresh miscellaneous fish is insufficient in actual production, some farmers use The feeding of other fish species has become the biggest limiting factor f...

AI Technical Summary

Problems solved by technology

At present, most of the artificial cultured salmon are fed with fresh miscellaneous fish or chilled fish, but natural bait is generally difficult to meet the supply. When the supply of chilled fish or fresh miscellaneous fish is insufficient in actual production, some farmers use The feed feeding of other fish species has become the biggest limiting factor for the expansion of salmon production and the promotion of large-scale farming

However, the use of chilled fish or fresh miscellaneous fish for breeding can easily pollute the water quality and cause diseases, and the use of other fish species for feeding cannot fully meet the nutritional needs of salmon. At the same time, the palatability is poor, the growth of salmon is slow, and fatty liver is caused. A series of metabolic problems, so the lack of suitable artificial full-price compound feed has become a bottleneck problem restricting the healthy development of salmon farming