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...

Examples

Embodiment 1

[0034] A high-efficiency compound feed for tilapia, including protein source raw materials, fat source raw materials, sugar source raw materials and auxiliary materials, the feed also includes seaweed nutrients, and the homogenizer for the preparation of the above seaweed nutrients contains sodium benzoate and sodium dehydroacetate . Seaweed nutrients are added to the feed, which contains amino acids, polypeptides, polysaccharides, alginate, algae oligosaccharides and other components, retaining all the active ingredients of seaweed, and these seaweed nutrients are water-soluble, fish are easy to absorb, digestibility and utilization rate High, can promote the growth performance of fish and improve muscle quality.

[0035] The homogenizer for the preparation of seaweed nutrients contains sodium benzoate and sodium dehydroacetate. The homogenizer is added in the process of ultrasonic vibration pulping. Molecules function to inhibit the absorption of amino acids by the cell mem...

Embodiment 2

[0053] A high-efficiency compound feed for tilapia, wherein the components and parts by weight of protein source raw materials, fat source raw materials, and sugar source raw materials are as follows: 7 parts of fish meal, 17 parts of insect meal, 5 parts of corn gluten meal, and 5 parts of rapeseed meal parts, soybean oil 4 parts, phospholipids 7 parts, α-starch 10 parts.

[0054] The components and parts by weight of the auxiliary materials in the above-mentioned feed are as follows: 2.5 parts of multivitamins, 2.5 parts of compound mineral salts, 4.5 parts of β-glucan, 5 parts of taurine, 2.5 parts of calcium dihydrogen phosphate, 3.5 parts of betaine, 3 parts of chromium nicotinate and 2.5 parts of ethoxyquinoline.

[0055] Among the coating materials of the above-mentioned feed, the film forming agent is sodium hydroxymethyl cellulose, and the enzyme coating material is an equal mixture of α-amylase, protease and lipase.

[0056] A method for preparing high-efficiency co...

Embodiment 3

[0068] This example is further optimized on the basis of Example 2. In the process of preparing high-efficiency compound feed, Step 4 is optimized. The specific optimization steps are as follows: After adding water to the enzyme-coated raw material to make a solution or dispersion, Add solid carrier and film forming agent and stir to make coating agent again, the amount of above-mentioned enzyme coating raw material is 18.7% of puffed granule weight, the amount of film forming agent is 8.6% of puffed granule weight, enzyme solution or suspension Concentration is 18.3%, the addition amount of solid carrier is 0.77% of enzyme coating raw material, and the weight ratio of tert-butyl methacrylate and methyl p-hydroxycinnamate in the solid carrier is 1:1.5, and the solid carrier can reduce The solid-liquid and liquid-liquid surface tension among enzymes, water, and film forming agents in the system promotes the rapid and uniform dispersion of biological enzymes in the system, and th...

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...

Examples

Embodiment 1

[0034] A high-efficiency compound feed for tilapia, including protein source raw materials, fat source raw materials, sugar source raw materials and auxiliary materials, the feed also includes seaweed nutrients, and the homogenizer for the preparation of the above seaweed nutrients contains sodium benzoate and sodium dehydroacetate . Seaweed nutrients are added to the feed, which contains amino acids, polypeptides, polysaccharides, alginate, algae oligosaccharides and other components, retaining all the active ingredients of seaweed, and these seaweed nutrients are water-soluble, fish are easy to absorb, digestibility and utilization rate High, can promote the growth performance of fish and improve muscle quality.

[0035] The homogenizer for the preparation of seaweed nutrients contains sodium benzoate and sodium dehydroacetate. The homogenizer is added in the process of ultrasonic vibration pulping. Molecules function to inhibit the absorption of amino acids by the cell mem...

Embodiment 2

[0053] A high-efficiency compound feed for tilapia, wherein the components and parts by weight of protein source raw materials, fat source raw materials, and sugar source raw materials are as follows: 7 parts of fish meal, 17 parts of insect meal, 5 parts of corn gluten meal, and 5 parts of rapeseed meal parts, soybean oil 4 parts, phospholipids 7 parts, α-starch 10 parts.

[0054] The components and parts by weight of the auxiliary materials in the above-mentioned feed are as follows: 2.5 parts of multivitamins, 2.5 parts of compound mineral salts, 4.5 parts of β-glucan, 5 parts of taurine, 2.5 parts of calcium dihydrogen phosphate, 3.5 parts of betaine, 3 parts of chromium nicotinate and 2.5 parts of ethoxyquinoline.

[0055] Among the coating materials of the above-mentioned feed, the film forming agent is sodium hydroxymethyl cellulose, and the enzyme coating material is an equal mixture of α-amylase, protease and lipase.

[0056] A method for preparing high-efficiency co...

Embodiment 3

[0068] This example is further optimized on the basis of Example 2. In the process of preparing high-efficiency compound feed, Step 4 is optimized. The specific optimization steps are as follows: After adding water to the enzyme-coated raw material to make a solution or dispersion, Add solid carrier and film forming agent and stir to make coating agent again, the amount of above-mentioned enzyme coating raw material is 18.7% of puffed granule weight, the amount of film forming agent is 8.6% of puffed granule weight, enzyme solution or suspension Concentration is 18.3%, the addition amount of solid carrier is 0.77% of enzyme coating raw material, and the weight ratio of tert-butyl methacrylate and methyl p-hydroxycinnamate in the solid carrier is 1:1.5, and the solid carrier can reduce The solid-liquid and liquid-liquid surface tension among enzymes, water, and film forming agents in the system promotes the rapid and uniform dispersion of biological enzymes in the system, and th...