Puffed feed for cold water fishes

Abstract

The invention discloses a puffed feed for cold water fishes. The puffed feed for the cold water fishes is characterized by being composed of the following raw materials in parts by weight: 30-50 parts of fishmeal, 5-15 parts of bean meal, 10-15 parts of corn protein powder, 4-9 parts of spirulina powder, 6-10 parts of fish oil, 2-6 parts of beer yeast, 0.05-0.12 part of phosphate, 15-25 parts of flour, 0.8-1.1 parts of minerals, 0.9-1.5 parts of calcium dihydrogen phosphate, 0.08-0.11 part of trimethylamine oxide, 15-20 parts of oligosaccharides and 0.2-0.4 part of probiotics. The puffed feed for the cold water fishes is rational in proportion, as well as comprehensive and balanced in nutrition. By adding the oligosaccharides into the puffed feed, the prepared puffed feed has the effects of regulating gastrointestinal functions, increasing vitamin synthesis and enhancing immunity. The added probiotics are beneficial for improving the micro-flora in the intestinal tracts of the cold water fishes so as to promote digestion and absorption of the cold water fishes to the puffed feed, and thereby improve the immunity of the cold water fishes as well as effectively reduce the mortality rates.

Description

technical field [0001] The invention relates to the technical field of aquatic animal feed, in particular to an extruded feed for cold-water fish. Background technique [0002] The optimum growth water temperature for cold-water fish is 12-18°C, and the upper limit for normal growth is 20°C. Due to temperature changes in different seasons, it is very easy to cause a decline in the immunity of cold-water fish. At present, the extruded feed for cold-water fish generally suffers from insufficient nutrition. Balanced, the immunity of cold-water fish decreases and the mortality rate increases. At the same time, cold-water fish generally grow faster during the breeding process, so the nutritional balance and quality of the feed must be ensured during the feeding process. Contents of the invention [0003] The invention aims to solve the deficiencies of the prior art and provide an extruded feed for cold-water fish. [0004] In order to achieve the above object, the present inve...

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Problems solved by technology

[0002] The optimum growth water temperature for cold-water fish is 12-18°C, and the upper limit for normal growth is 20°C. Due to temperature changes in different seasons, it is very easy to cause a decline in the immunity of cold-water fish. At present, the extruded feed for cold-water fish generally suffers from insufficient nutrition. Balanced, the immunity of cold-water fish decreases, and the mortality rate increases. At the same time, cold-water fish generally grow faster during the breeding process, so the nutritional balance and quality of the feed must be ensured during the feeding process.

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