Enzymolysis method of chicken intestinal canals, carp feed containing intestinal canals and feed preparation method
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A technology of carp feed and enzymolysis chicken, which is applied in the field of fish feed preparation, can solve the problems of low utilization rate and high price of fish feed raw materials, and achieve the effects of promoting intestinal development, improving intestinal immune function, and reducing costs
Inactive Publication Date: 2020-06-26
HEILONGJIANG RIVER FISHERY RES INST CHINESE ACADEMY OF FISHERIES SCI
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[0004] The purpose of the present invention is to solve the problems of high price and low utilization rate of existing fish feed raw materials, and provide a method for enzymatic hydrolysis of chicken intestines, carp feed containing chicken intestines and a feed preparation method. The enzymatic hydrolysis process optimized in the laboratory was used to prepare enzymatic hydrolyzed chicken intestines, and achieved very good results in carp test applications
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specific Embodiment approach 1
[0020] Specific Embodiment 1: This embodiment records a method for enzymatic hydrolysis of chicken intestines, the method is as follows: pretreat the raw materials, then mix chicken intestines, protease and water, and perform enzymolysis; The mass ratio of the chicken intestine and water is 1:2; the protease is one of alkaline protease, papain, trypsin or neutral protease;
[0021] When the protease is alkaline protease, the enzymolysis conditions are pH 8, temperature 55°C, enzyme addition 0.32%, time 4h, and enzymolysis degree 30.91%;
[0022] When the protease is papain, the enzymolysis conditions are pH 6.63, temperature 46.27°C, enzyme addition 0.20%, time 4h, and enzymolysis degree 29.78%;
[0023] When the protease is trypsin, the enzymolysis conditions are pH 8.00, temperature 55.00°C, enzyme addition 0.26%, time 4h, and enzymolysis degree 30.68%;
[0024] When the protease is neutral protease, the enzymolysis conditions are pH 6.56, temperature 48.41°C, enzyme additi...
specific Embodiment approach 2
[0026] Embodiment 2: the method for enzymatic hydrolysis of chicken intestines described in Embodiment 1, the pretreatment is to collect, clean and pulverize the raw materials of chicken intestines.
specific Embodiment approach 3
[0027] Embodiment 3: The method for enzymolysis of chicken intestinal tract described in Embodiment 1 or 2, the method further includes: mixing, drying and packaging the enzymolysis products.
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Abstract
The invention relates to an enzymolysis method of chicken intestinal canals, a carp feed containing intestinal canals and a feed preparation method, and belongs to the technical field of preparation of fish feeds. The invention aims at solving the problems of relatively high raw material prices and relatively low utilization rate of existing fish feeds. The enzymolysis method comprises the steps of: preprocessing the raw materials, mixing the intestinal canals, protease and water, and carrying out enzymolysis, wherein the protease is one of alkaline protease, papain, trypsin or neutral protease. The carp feed consists of the following raw materials in parts by mass: soybean meal, fish meal, enzymatically decomposed chicken intestinal canal protein, wheat middling, soybean oil, fish oil, phospholipid, choline chloride, calcium dihydrogen phosphate, sodium hydroxycellulose, a mineral element premix, multivitamins, methionine, threonine and lysine. A chicken intestinal canal protein feed,namely the carp feed contains trophic factors for promoting development of the intestinal tracts and is capable of improving activities of intestinal tract complements C3 and C4 and lysozyme, therebyimproving immunologic functions of the intestinal tracts.
Description
technical field [0001] The invention belongs to the technical field of fish feed preparation, and in particular relates to an enzymatic hydrolysis method of chicken intestines, carp feed containing chicken intestines and a feed preparation method. Background technique [0002] In 2018, the total output of aquatic products in the country was 64.5766 million tons, of which the aquaculture output reached 49.9105 million tons. With the development of my country's aquaculture industry, the amount of feed consumed by aquatic animals has also increased sharply. In 2019, my country's aquatic animal feed output reached 2202.9 10,000 tons, which in turn leads to a shortage of feed raw materials for aquatic animals, especially a serious shortage of protein feed raw materials. The raw material of protein feed for aquatic animals is mainly fish meal, which has the advantages of high protein content and balanced amino acid, so it is the best protein feed raw material for aquatic animals. ...
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