Efficient compound feed for tilapia nilotica and preparation method thereof

Abstract

The invention provides an efficient compound feed for tilapia nilotica and belongs to the technical field of processing of aquatic feeds. The feed comprises a protein source raw material, a fat sourceraw material, a sugar source raw material, an auxiliary material and a coated raw material, and further comprises an algae nutrient; a homogenizing agent for preparing the abovementioned algae nutrient contains sodium benzoate and sodium dehydroacetate. The invention further provides a preparation method of the efficient compound feed for tilapia nilotica. The preparation method mainly comprisesthe steps of performing acid pickling, enzymolysis and ultrasonic vibration on algae to extract the algae nutrient, mixing the algae nutrient with the protein source raw material, the sugar source rawmaterial and the auxiliary material, and then puffing the mixture, and finally coating the puffed mixture by using the fat source raw material and the coated raw material. The efficient compound feedfor tilapia nilotica provided by the invention contains the water-soluble algae nutrient, is low in disintegration rate and dissolution loss rate in water, is rapidly disintegrated in succus gastricus, and has high stability and high digestibility; the preparation method of the efficient compound feed has the advantages of high extraction efficiency, short production cycle, high raw material utilization rate and yield and high bio-enzyme immobilizing amount.

Description

technical field [0001] The invention belongs to the technical field of aquatic feed processing, and in particular relates to a high-efficiency compound feed for tilapia and a preparation method thereof. Background technique [0002] Tilapia has the characteristics of fast growth, strong fecundity, miscellaneous food habits, and strong disease resistance. It is suitable for high-density intensive farming in ponds, cages, and running pools in fresh or brackish water, and the tilapia has a high meat yield. The product is moderately priced and welcomed by consumers at home and abroad. Therefore, it has become a high-quality fish recommended by the Food and Agriculture Organization of the United Nations (FAO) to promote farming around the world. It is also one of the leading aquaculture species in my country. At the same time, my country is also the largest tilapia in the world. export country. In 2014, the global tilapia production reached 5.45 million tons, of which China's tila...

AI Technical Summary

Problems solved by technology

Seaweed is rich in protein, dietary fiber, seaweed polysaccharides, mannitol, high unsaturated fatty acids, amino acids, vitamins, polyhalogenated polyterpenoids, sterols, and trace elements such as potassium, iron, calcium, phosphorus, iodine, selenium, and cobalt As well as a variety of natural active ingredients, it is a raw material for natural ideal nutritional foods with high protein, low calorific value, and high physiological activity. However, the main nutritional ingredients of seaweed are combined with seaweed ingredients in an insoluble form, so the nutritional ingredients are usually difficult to obtain. Digestion and absorption

[0004] Prior art such as Chinese invention patent CN102701866B discloses a fermented seaweed liquid fertilizer synergist and its production method and application, wherein natural seaweed is used as raw material, fermented by microorganisms, and then prepared by alkali extraction, press filtration and other processes to obtain seaweed extract liquid, and then add chelated trace elements to obtain a fermented seaweed fertilizer synergist. The organic molecular weight in the seaweed extract is smaller, the solid content is higher, and it can maintain low viscosity and good fluidity, and the extraction of active ingredients is easier. Completely, but through multiple physical and chemical extractions, alginate, mannitol, water-soluble vitamins, minerals, etc. in seaweed are dissolved and lost, causing a significant loss of active substances in seaweed cells