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Preparation method of expanded compound feed for micropterus salmoides and snakehead fishes

A technology of extruded compound feed and snakehead, applied in animal feed, animal feed, application, etc., can solve problems such as liver enlargement, anorexia, slow growth, etc., achieve high water stability, reduce feed cost, and high feed conversion rate Effect

Active Publication Date: 2014-07-23
ZHEJIANG DONGYU BIOTECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this feed is only suitable for juvenile fish. When the fish grows to 3 to 4 taels, they will experience anorexia, slow growth, and some symptoms such as fatty liver and liver enlargement.

Method used

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  • Preparation method of expanded compound feed for micropterus salmoides and snakehead fishes

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0054] A preparation method for extruded compound feed for California perch and snakehead, comprising the following steps:

[0055] ⑴ Weigh raw materials and conventional auxiliary materials according to the formula, mix, pulverize, and pass through 8-10 mesh sieves to obtain coarse materials;

[0056] ⑵ The coarse material is crushed for the second time and passed through a 60-80 mesh sieve, and mixed with other auxiliary materials in the formula to obtain a mixed material;

[0057] ⑶ Pass the mixed material through a 80-100 mesh sieve after superfine pulverization to obtain superfine powder;

[0058] ⑷ Move the ultrafine powder into the modulator, pass 14-15% of the mass of the ultrafine powder into the water vapor at 90-100°C for modulation, and then enter the extrusion extruder granulator to make feed pellets;

[0059] ⑸ Dry the feed pellets at a temperature of 95-103°C to obtain the product;

[0060] Described formula comprises raw material, conventional auxiliary mater...

Embodiment 2

[0081] A preparation method for extruded compound feed for California perch and snakehead, comprising the following steps:

[0082] ⑴ Weigh raw materials and conventional auxiliary materials according to the formula, mix, pulverize, and pass through 8-10 mesh sieves to obtain coarse materials;

[0083] ⑵ The coarse material is crushed for the second time and passed through a 60-80 mesh sieve, and mixed with other auxiliary materials in the formula to obtain a mixed material;

[0084] ⑶ Pass the mixed material through a 80-100 mesh sieve after superfine pulverization to obtain superfine powder;

[0085] ⑷ Move the ultrafine powder into the modulator, pass 14-15% of the mass of the ultrafine powder into the water vapor at 90-100°C for modulation, and then enter the extrusion extruder granulator to make feed pellets;

[0086] ⑸ Dry the feed pellets at a temperature of 95-103°C to obtain the product;

[0087] Described formula comprises raw material, conventional auxiliary mater...

Embodiment 3

[0108] A preparation method for extruded compound feed for California perch and snakehead, comprising the following steps:

[0109] ⑴ Weigh raw materials and conventional auxiliary materials according to the formula, mix, pulverize, and pass through 8-10 mesh sieves to obtain coarse materials;

[0110] ⑵ The coarse material is crushed for the second time and passed through a 60-80 mesh sieve, and mixed with other auxiliary materials in the formula to obtain a mixed material;

[0111] ⑶ Pass the mixed material through a 80-100 mesh sieve after superfine pulverization to obtain superfine powder;

[0112] ⑷ Move the ultrafine powder into the modulator, pass 14-15% of the mass of the ultrafine powder into the water vapor at 90-100°C for modulation, and then enter the extrusion extruder granulator to make feed pellets;

[0113] ⑸ Dry the feed pellets at a temperature of 95-103°C to obtain the product;

[0114] Described formula comprises raw material, conventional auxiliary mater...

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Abstract

The invention relates to a preparation method of an expanded compound feed for micropterus salmoides and snakehead fishes. The method comprises the following steps: weighing raw materials and conventional auxiliary materials according to a formula, mixing, grinding, and screening by an 8-10-mesh sieve to obtain roughage; performing secondary grinding on the roughage, screening by a 60-80-mesh sieve, and uniformly mixing with a formula amount of other auxiliary materials to obtain a mixture; performing superfine grinding on the mixture, and screening by an 80-100-mesh sieve to obtain superfine powder; moving the superfine powder into a blender, adding steam, with temperature of 90-100 DEG C, accounting for 14%-15% by mass of the superfine powder for blending, and processing in an extrusion and expansion granulator to form feed granules; and drying the feed granules at 95-103 DEG C to obtain the expanded compound feed. According to the method, primary nutrient indexes are optimized, the prepared compound feed is good in palatability, high in water body stability, reasonable in cost and high in feed conversion rate through popularization and application, the fed fishes are normal in growth speed, body shape and quality, and the water body pollution is effectively alleviated.

Description

technical field [0001] The invention relates to the field of fish feed, in particular to a method for preparing extruded compound feed for California perch and snakehead. Background technique [0002] In the past, the California perch and snakehead aquaculture industry generally used chilled fish as bait for breeding. This feeding method is costly, and at the same time, a large amount of chilled fish is likely to cause water pollution. Ordinary feed is made of natural materials such as soybeans, deep-sea fish meal and wheat husk powder. However, ordinary feed has poor stability in water, is not strong in attracting food, and has low digestion and absorption. Aiming at this problem, the Chinese invention patent with the application number 201110338903.7 discloses a kind of extruded snakehead compound feed, which is composed of various raw material components according to the extruded [0003] A mixture made by pellet feed processing method, the components and content of eac...

Claims

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Application Information

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IPC IPC(8): A23K1/10A23K1/14A23K1/16A23K1/18A23K10/22A23K10/30A23K20/10A23K20/105A23K20/147A23K20/158A23K20/26A23K20/28A23K50/80
CPCY02A40/818
Inventor 吴华东
Owner ZHEJIANG DONGYU BIOTECH CO LTD
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