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Process for producing high-energy feed of aquatic product

A manufacturing process and high-energy technology, applied in the field of aquatic feed manufacturing process, can solve the problems of high crude fat content, unable to meet the production needs of compound feed, and unable to meet the production process.

Inactive Publication Date: 2009-05-20
福建大昌生物科技实业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Because these breeds have higher requirements on the crude fat content of the feed (the crude fat content requires 12-25%), the existing feed production technology cannot meet the production needs of this type of compound feed.
In the process of feed production, the addition of oil can only be realized in two processes, the addition of the second mixing and the post-spraying of the granules after drying, but when the proportion of added oil in the second mixing exceeds 3%, it is easy to cause puffed granules If it is not formed, and the proportion of sprayed oil exceeds 5%, the feed particles cannot be completely absorbed, which will cause oil dripping
Therefore, when the crude fat content in the compound feed is required to exceed 10%, the existing feed production process cannot meet the needs of production

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] Taking the floating material with 10% crude fat in the finished product as an example, set the mold size to 4.0mm, and the processing steps are as follows:

[0014] Prepare materials according to the requirements of compound feed formula, and grind all raw materials except flour, fish oil and additives, pass through 60 to 100 mesh screens, and then mix until the coefficient of variation of mixing uniformity C.V.<10%, ready for use: in this step, The raw materials can also be mixed first, crushed, and then sieved.

[0015] For secondary mixing, use general mixing equipment to put the mixture, flour and additives of the above-mentioned part of the raw materials into mixing, and spray 1% of the total weight of fish oil, and mix until the coefficient of variation of mixing uniformity C.V.<7.5%.

[0016] For puffing treatment, single-screw or twin-screw puffing machines can be used, and the mold size is set to 4.0mm. Put the above mixed material into the extruder, control t...

Embodiment 2

[0022] When the crude fat content of the finished product is higher than more than 18%, the feed produced can only be sinking feed. Taking the processing of sinking material with a finished crude fat content of 25% as an example, the processing steps are the same as the above example, and the processing parameters are adjusted as follows:

[0023] 3% of the total weight of fish oil is added during the secondary mixing, and the inherent crude fat content in the raw material is 5%, and the expanded material is then sprayed with 17% of the total weight of fish oil. During production, the extruder adopts a double-tooth structure Twin-screw extruder, the extruding tempering temperature is 90-100°C, the moisture content of the material after conditioning is 24-26%, the expansion coefficient of feed pellets is 1.3-1.4, and the bulk density of feed pellets is controlled between 520-580g / L During the period, the drying temperature is set at 95-105°C, and the drying time is controlled a...

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PUM

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Abstract

The invention relates to a process for preparing aquatic high-energy feed. The process sequentially comprises the steps of material treatment, secondary mixing, swelling and drying treatment, oil spraying treatment, sieving and packaging; the process utilizes the technical advantages of combining an extrusion swelling process and a vacuum post oil spraying process, carries out research on key process parameters and produces the aquatic high-energy feed swelling compound feed with the coarse fat content of between 12 and 25 percent so as to meet the breeding requirement of various brand-name and high-quality sea and freshwater fishes.

Description

Technical field: [0001] The invention belongs to the field of aquatic feed processing, and in particular relates to a manufacturing process of aquatic feed with high crude fat content. Background technique: [0002] In recent years, aquaculture in my country has developed vigorously, especially the promotion of rare fish such as rainbow trout, yellowtail, flounder, and turbot, and the requirements for the quality of aquaculture feed are getting higher and higher. Because these breeds have higher requirements on the crude fat content of the feed (crude fat content requires 12-25%), the existing feed production technology cannot meet the production needs of this type of compound feed. In the process of feed production, the addition of oil can only be realized in two processes, the addition of the second mixing and the post-spraying of the granules after drying, but when the proportion of added oil in the second mixing exceeds 3%, it is easy to cause puffed granules If it is n...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23K1/18A23K10/30A23K20/158A23K40/00A23K40/10A23K40/30A23K50/80
Inventor 吴云通季文娟黄贞胜黄晶晶
Owner 福建大昌生物科技实业有限公司
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