Microparticle feed, preparation method, compound food attractant for juvenile large yellow croaker and application

A technology of micro-granule feed and large yellow croaker, which is applied in the field of compound bait attractant for juvenile large yellow croaker, micro-granule feed and preparation, can solve the problems of unstable supply, uneven quality, high cost and the like, and achieves improved growth and survival. , The effect of uniform distribution of components and high sphericity

Active Publication Date: 2022-02-08
OCEAN UNIV OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In summary, the existing problems in the prior art are: the biological bait currently used in large yellow croaker fry is expensive, uneven in quality, unstable in supply, and may carry pathogenic microorganisms; Low enthusiasm, low survival rate

Method used

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  • Microparticle feed, preparation method, compound food attractant for juvenile large yellow croaker and application
  • Microparticle feed, preparation method, compound food attractant for juvenile large yellow croaker and application
  • Microparticle feed, preparation method, compound food attractant for juvenile large yellow croaker and application

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preparation example Construction

[0032] Such as figure 1 Shown, the preparation method of the microparticle feed that the embodiment of the present invention provides comprises the following steps:

[0033] S101: Mix and stir crushed squid powder, 5-guanosine monophosphate disodium salt, 5-adenosine monophosphate disodium salt, and microcrystalline cellulose in proportion to obtain a compound food attractant for large yellow croaker juveniles.

[0034] S102: Grinding and proportioning other raw materials in the juvenile large yellow croaker feed formula, stirring and mixing with the compound food attractant, adding sodium alginate liquid and mixing until a uniform and sticky block is formed.

[0035] S103: Use an axial single-screw spherical extruder to extrude the feed into slender strips, then use a spheronizer to make the feed into micro pellets with a particle size of up to 1 mm, and finally dry to obtain micro pellets.

[0036] In a preferred embodiment of the present invention, the temperature of mixin...

Embodiment 1

[0042] The compound food attractant for large yellow croaker larvae and juveniles according to the embodiment of the present invention has the following components in terms of mass percentage: 66.67% of squid powder and 33.33% of microcrystalline cellulose. The application of the above-mentioned compound food attractant is added in the basal feed of large yellow croaker larvae juveniles according to the ratio of 6%.

Embodiment 2

[0045] The compound food attractant for large yellow croaker larvae juveniles according to the embodiment of the present invention has the following components by mass percentage: 4.17% of 5-guanosine monophosphate disodium salt, 4.17% of 5-adenosine monophosphate disodium salt, squid Powder 66.67%, microcrystalline cellulose 24.99%. The application of the above-mentioned compound food attractant is added in the basal feed of large yellow croaker larvae juveniles according to the ratio of 6%.

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Abstract

The invention belongs to the technical field of juvenile fish breeding feed, and discloses a microparticle feed, a preparation method, a compound food attractant for juvenile large yellow croaker and its application. The compound food attractant is composed of 5-guanosine monophosphate disodium salt 0 %-25%, 5-adenosine monophosphate disodium salt 0%-25%, microcrystalline cellulose 0%-35% and squid powder 60-75%. The micro-granule feed of the invention has high true sphericity, smooth surface and uniform distribution of components in the pellets. The new process of compound feed attractant and micro-granule feed is used to produce high-efficiency artificial micro-particle feed for large yellow croaker juveniles, which can effectively promote the early adaptation of large yellow croaker juveniles to artificial micro-particle feed, and reduce the digestive system of juveniles caused by poor physical properties of micro-particle feed. damage, improve the growth and survival of juvenile fish, and lay the foundation for the improvement of the quality of large yellow croaker fry; promote the sustainable development of the large yellow croaker fry industry and create good economic benefits.

Description

technical field [0001] The invention belongs to the technical field of juvenile fish breeding feed, and in particular relates to a microparticle feed, a preparation method, a compound food attractant for juvenile large yellow croaker and its application. Background technique [0002] At present, the closest existing technology: large yellow croaker (Larimichthys crocea) belongs to Perciformes (Perciformes), Sciaenidae (Sciaenidae), yellow croaker (Larimichthys), is a warm-temperate offshore fish, and is a unique seawater species in my country. Farmed fish has attracted much attention because of its delicious taste and huge commercial value. [0003] In recent decades, large yellow croaker has been overfished, and wild large yellow croaker resources are facing depletion. In order to meet the market demand for large yellow croaker, the farming of large yellow croaker has now become industrialized. According to the statistics of the 2019 China Fishery Yearbook, the annual output...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A23K50/80A23K20/26A23K10/22
CPCA23K50/80A23K20/26A23K10/22Y02A40/818
Inventor 艾庆辉黄文兴姚传伟刘勇涛尹兆阳许宁麦康森徐玮
Owner OCEAN UNIV OF CHINA
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