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Compounded feed for Micropterus salmoides and preparation method therefor

A technology for compound feed and sea bass, applied in the field of California sea bass compound feed and its preparation, can solve the problems of low floating water rate, excessive powder, broken powder, etc., achieve moderate starch content, meet nutritional needs, and promote rapid growth.

Inactive Publication Date: 2020-03-20
广州观星农业科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the starch content in the feed formula is not as low as possible. When the starch content is less than 12%, the quality of the feed will be greatly affected, and problems such as broken powder, excessive powder, and low floating rate will easily occur, and California perch itself The desire to eat the feed that sinks to the bottom is not strong, and the feed with low starch content is bound to have a negative impact on the growth of California perch

Method used

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  • Compounded feed for Micropterus salmoides and preparation method therefor
  • Compounded feed for Micropterus salmoides and preparation method therefor

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0057] The specific steps of the preparation method of the California perch compound feed of described embodiment 1-3 are as follows:

[0058] 1) First, weigh the feed nutrition factor and tapioca starch according to the weight of the raw materials, mix them evenly, and process them through ultrafine grinding to 500 mesh to obtain the first mixture. The temperature during the ultrafine grinding process is 10° C.;

[0059] 2) Then weigh fish meal, cottonseed protein, wheat starch, calcium dihydrogen phosphate and bile acid feed additives according to the weight of the raw materials, mix them evenly, and grind them to 100 mesh to obtain the second mixture;

[0060] 3) After the first mixture and the second mixture are mixed evenly, they are sent to an extrusion granulator for granulation. During the extrusion granulation, the temperature is 100°C and the humidity is 50%. The pelleted feed obtained is dried at a temperature of 80-90°C;

[0061] 4) After the temperature of the gr...

Embodiment 1

[0070] In this test, the feed prepared in Examples 1-3 and the feed prepared in Comparative Example 3 are soaked and observed. Each test group takes 10 g of feed respectively, puts it into a glass container and soaks it in water for 30 minutes, and observes and records the shape and ups and downs of the feed. The specific results are as follows in Table 2:

[0071]

[0072] From the results in Table 2, it can be seen that the California perch compound feed prepared in Examples 1-3 is stable in shape, and is not prone to crushing and bottom sinking.

[0073] Relative to the feed prepared in Examples 1-3, the feed prepared in Comparative Example 3 appears pulverized and partly sinks to the bottom, indicating that the feed nutritional factor and tapioca starch of the present invention are processed to a specific particle size through ultrafine pulverization, and then mixed with fish meal, Cottonseed protein and wheat starch are prepared in a specific ratio, and the feed is not...

Embodiment 2

[0075] In this experiment, the feed prepared in Examples 1-3 and the feed prepared in Comparative Examples 1-3 were used to feed California sea bass cultured in a farm. During the experiment, the same feeding conditions were adopted except for the different feed components, and 270 California perch were cultured in each test group, and the experiment lasted for 90 days. Before the test, the initial body weight of the California perch was recorded, and the number and final body weight of the California perch were recorded after the test, and the survival rate and average weight gain rate of the California perch were counted. Wherein, the determination of body weight data is the result obtained by randomly picking 50 California perch in each cage and taking the average value. Table 3 is the result of survival rate; Table 4 is the result of average weight gain rate.

[0076] table 3

[0077] Feed test group mantissa before test mantissa at the end of the test Sur...

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Abstract

The invention discloses a compounded feed for Micropterus salmoides and a preparation method therefor. The feed comprises the following raw materials in parts by weight: 40-60 parts of fish meal, 10-30 parts of mixed protein, 10-15 parts of mixed starch, 5-10 parts of mixed fat, 0.9-1.1 parts of calcium dihydrogen phosphate and 1.8-2.2 parts of bile acid feed additive, wherein the mixed protein isprepared through mixing a feed trophic factor and cottonseed protein which are in a weight ratio of (1 to 3): (1 to 2); the mixed starch is prepared through mixing cassava starch and wheat starch which are in a weight ratio of 1: (1 to 2); and the mixed fat is prepared through mixing fish fat and soy oil which are in a weight ratio of (4 to 6): 1. According to the compounded feed for the Micropterus salmoides, prepared by the method, the content of starch in the feed is moderate and cannot affect liver metabolism of the Micropterus salmoides, and meanwhile, the rapid growth of the Micropterussalmoides can be effectively promoted.

Description

technical field [0001] The invention belongs to the field of feed, and in particular relates to a California perch compound feed and a preparation method thereof. Background technique [0002] California perch, also known as largemouth bass, belongs to the order Perciformes, the family Sunfish, and the genus Perch, native to the Mississippi River system in California, USA. Because of the advantages of rapid growth, less thorns, delicious taste, and rich nutrition, many countries and regions currently have artificial breeding. [0003] The Guangdong region of my country introduced California perch fry in 1983, and succeeded in artificial breeding in 1985. The fry were introduced to Jiangsu, Zhejiang, Shanghai, Shandong and other places for breeding, and all achieved good economic benefits. According to different feed sources, California perch farming can be divided into three modes: whole-process chilled feeding, full-process compound feed feeding and mixed feeding. Traditi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23K50/80A23K10/22A23K10/37A23K10/16A23K20/158A23K20/163A23K20/26A23K20/147A23K20/105A23K40/10A23K40/30
CPCA23K50/80A23K10/22A23K10/37A23K10/16A23K20/158A23K20/163A23K20/26A23K20/147A23K20/105A23K40/10A23K40/30Y02A40/818Y02P60/87
Inventor 舒锐尹立鹏黄江
Owner 广州观星农业科技有限公司
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