Additive for reducing visceral fat deposition of weever and application thereof

A visceral fat and compound additive technology, applied in application, animal feed, animal feed, etc., can solve the problems of excessive fat deposition, difficult absorption and utilization of fat, liver metabolism disorder, etc. The effect of liver fat content

Active Publication Date: 2015-04-22
YELLOW SEA FISHERIES RES INST CHINESE ACAD OF FISHERIES SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide an additive and its application for reducing visceral fat deposition of perch, so as to solve the problem that fish are difficult to absorb and utilize fat in feed, which causes liver metabolic disorder and causes excessive fat deposition

Method used

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  • Additive for reducing visceral fat deposition of weever and application thereof
  • Additive for reducing visceral fat deposition of weever and application thereof
  • Additive for reducing visceral fat deposition of weever and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] The preparation of embodiment 1 hydrolyzed fish protein powder:

[0024] Preparation of hydrolyzed fish protein powder: use Pacific pollock fillets, wash them, grind them with a meat grinder, put them into an enzyme reactor to heat and sterilize them, heat them up to 90°C to keep them warm, and sterilize them in a constant temperature water bath for 20 minutes, then add water and spores Bacillus complex protease mixed, enzymolysis temperature: 50℃~60℃, initial pH=7.5, material-water ratio: 1:1 (kg:L), Bacillus complex protease dosage E / S=90AU, enzymolysis 30min. Then the enzymolysis solution is heated to 100°C to inactivate the Bacillus complex protease, and the bone spurs are separated by filtration. The enzymolysis solution is further centrifuged in three phases to obtain soluble fish protein water phase, insoluble protein precipitate and fish oil respectively. The soluble fish protein water phase is ultrafiltered at 100kDa Purified by membrane ultrafiltration and spr...

Embodiment 2

[0026] Example 2 Application of hydrolyzed fish protein powder and taurine to reduce fat content in sea bass liver

[0027] Add 0.5%, 1.0% taurine, add 2% hydrolyzed fish protein powder, 5% hydrolyzed fish protein powder, add 2% hydrolyzed fish protein powder+0.5% taurine, add 5% hydrolyzed fish protein powder in the basic feed +0.5% taurine, and the control group was 7 groups of isonitrogen and isoenergy feeds made from the basic feed without hydrolyzed fish protein powder and taurine. The feed formula is shown in Table 1. Feed raw materials are ultrafinely pulverized and passed through 80-mesh sieve, each raw material is mixed evenly according to the ratio, and then an appropriate amount of binder is added to knead evenly, and two feeds with diameters of 1.5mm are extruded by a twin-screw extruder. . After drying, cut into 3mm long particles and store in -20°C refrigerator until use. Three replicates per treatment, 30 fish per replicate. The data were expressed as the mea...

Embodiment 3

[0064] A kind of application of said hydrolyzed fish protein powder in perch feed, its addition amount is 2%.

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Abstract

The invention relates to an additive for reducing visceral fat deposition of weever and application of the additive, belonging to the technical field of feed additives for aquaculture. The additive is prepared by the following steps of cleaning pacific pollack steaks, mincing the pacific pollack steaks by utilizing a mincing machine, putting the minced pacific pollack steaks into an enzyme reactor to be heated and sterilized, maintaining the temperature after the minced pacific pollack steaks are heated to 90 DEG C, carrying out constant-temperature water bath for 20min to sterilize the minced pacific pollack steaks, and adding water and bacillus compound protease to mix, wherein the enzymolysis temperature is 50-60 DEG C, the initial pH is 7.5, the material-water ratio is 1:1, and the enzymolysis time is 30 minutes; heating an enzymolysis liquid to inactivate the protease, filtering and separating spurs, further carrying out three-phase centrifuge on the enzymolysis liquid so as to obtain a soluble fish protein water phase, carrying out ultrafiltration and purification on the soluble fish protein water phase by utilizing a 100kDa ultrafiltration membrane, and carrying out spray drying to obtain hydrolyzed fish protein powder. After being added in the feeds of the weever, the hydrolyzed fish protein powder can promote the growth of the weever and reduce the deposition of the fat in internal organs to a certain degree and has a particularly obvious effect when being compounded with taurine.

Description

technical field [0001] The invention belongs to the technical field of aquaculture feed additives, and in particular relates to an additive for reducing visceral fat deposition of perch and its application. Background technique [0002] The current aquaculture is limited by the water environment, land and other aquaculture resources, high-density farming has become a trend, fish swimming movement is limited, and the current research on the nutrient composition of artificial compound feed is still not accurate enough, resulting in fish body fat excessive deposition. Excessive deposition of fish body fat will seriously damage the health of fish body, not only cause pathological changes such as fatty liver, but also seriously damage the immune function and disease resistance of fish. In addition, the excessive deposition of fat in the abdomen of the fish will also cause the phenomenon of "big belly" in farmed fish, which greatly reduces the market value. Moreover, the excessiv...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A23K1/18A23K1/16A23K1/14A23K1/10A23K1/175
Inventor 徐后国梁萌青郑珂珂
Owner YELLOW SEA FISHERIES RES INST CHINESE ACAD OF FISHERIES SCI
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