Fish feed for mixed culture and preparation method of fish feed

Abstract

The invention discloses fish feed for mixed culture and a preparation method of the fish feed. The feed comprises one or more of the following ingredients: soya bean meal, rapeseed cakes, rice bran meal, salt, liquid vitamin C, betaine and traditional Chinese medicine additives, and the preparation method comprises the steps of smashing, blending and pelletizing. The fish feed and the preparationmethod have the benefits that on the premise that the yield of grass carps is slightly increased, the yields of breams, crucian carps, variegated carps and silver carps are significantly increased; the utilization efficiency of the feed is effectively improved; the cost of the feed is saved; and the economic benefits of feeding freshwater fish are improved.

Description

technical field [0001] The invention relates to an animal breeding feed containing raw materials derived from plants, animals or minerals, in particular to a mixed fish feed of grass carp mixed breeding mode and a preparation method thereof. Background technique [0002] As the scale of grass carp farming in my country expands year by year and the unit output increases, the total supply of grass carp continues to increase. In particular, the supply of grass carp in central China has been in a state of oversupply, resulting in a very low price of grass carp at the end of each year when it is on the market. However, The listed prices of other cultured species such as bream, crucian carp and silver carp are higher than that of grass carp. [0003] At present, the pond culture mode in Central China is mainly a polyculture mode of grass carp, supplemented by bream, crucian carp, silver carp and silver carp. Since freshwater fish have their own habitat water layers and feeding hab...

AI Technical Summary

Problems solved by technology

However, due to the influence of traditional feed formulations, for a long time, feed formulations were only designed based on the nutritional requirements of the main species of fish (such as grass carp). Although the feed of this formula can fully meet the nutritional needs of grass carp, it often ignores the nutritional needs of the aquaculture water. The demand for nutrition of other cultured species results in a high yield of grass carp, while the yield of other cultured species is very low. In the market where the market price of grass carp is low, but the prices of bream, crucian carp and silver carp are rising, the economic benefits of farming are not optimal. optimization

[0004] In addition, different species of fish in polyculture live together in a freshwater environment. When a certain type of fish (such as grass carp) suffers from hemorrhagic disease or enteritis disease, it will affect the water quality of the pond, and other types of fish are easily infected by the disease, resulting in Poor economics across the pond

At present, the disease resistance of freshwater fish is improved by adding feed additives. However, the current additives are multi-dimensional antibiotics, compounds, trace elements or hormones. Good health, feed additives play an important role in freshwater aquaculture, so seeking efficient and harmless feed is the key to improving the growth performance and disease resistance of freshwater fish in polyculture mode

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