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Feed additive for strengthening immunity of tilapia

A technology of feed additive and immunity, which is applied in the field of feed additive to enhance the immunity of tilapia, and can solve the problems of loss of liver function, lack of disease resistance, and difficulty in finding treatment measures for sick fish

Inactive Publication Date: 2019-05-03
合肥市大邵生态农业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Diseased tilapias generally have deep damage to the liver, and the apparent symptoms of flowery liver, pale color, green liver, and swelling indicate that the liver function of the diseased fish is seriously lost, and the disease resistance is seriously lacking. It is irreversible, and it also leads to the fact that once streptococcal disease breaks out, it is difficult to find effective treatment measures. Therefore, for streptococcal disease, prevention is more important than cure. Through daily health care work, the liver function of tilapia can be enhanced to improve the health of tilapia. Resistance to streptococcal disease is important

Method used

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  • Feed additive for strengthening immunity of tilapia

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] The preparation method of the enzyme extract of fish scale and horsefly powder is:

[0022] 1) Mix fish scales and horsefly powder to obtain a mixture, then add water for beating to obtain a slurry; the mass ratio of fish scales to horsefly powder is 3:1.

[0023] 2) After the temperature of the slurry is raised to 50° C., the pH is adjusted to 7.2, and then the compound enzyme I of papain and neutral protease is added, and the enzymatic hydrolysis reaction is carried out for 8 hours; the amount of the compound enzyme I added is 4% of the weight of the mixture;

[0024] 3) After cooling the enzymolysis solution in step 2) to 40°C, adjust the pH to 5.2, then add the complex enzyme II of acid protease and nuclease, carry out the enzymolysis reaction for 6 hours, and then centrifuge to obtain the supernatant, supernatant It can be concentrated and dried. The compound enzyme II is added in an amount of 10% by weight of the mixture.

[0025] The pretreatment method of the ...

Embodiment 2

[0028] The preparation method of the enzyme extract of fish scale and horsefly powder is:

[0029] 1) Mix fish scales and horsefly powder to obtain a mixture, then add water for beating to obtain a slurry; the mass ratio of fish scales to horsefly powder is 5:1.

[0030] 2) After the temperature of the slurry is raised to 60° C., the pH is adjusted to 6.5, and then compound enzyme I of papain and neutral protease is added to carry out enzymatic hydrolysis reaction for 12 hours; the amount of compound enzyme I added is 6% of the weight of the mixture;

[0031] 3) After cooling the enzymolysis solution in step 2) to 46°C, adjust the pH to 4.5, then add the complex enzyme II of acid protease and nuclease, carry out the enzymolysis reaction for 10 hours, and then centrifuge to obtain the supernatant, the supernatant It can be concentrated and dried. The amount of compound enzyme II added is 5% of the weight of the mixture.

[0032] The pretreatment method of the pretreated fly a...

Embodiment 3

[0035] A feed additive for enhancing the immunity of tilapia, calculated by weight percentage, comprising the following raw materials:

[0036] 30 parts of enzyme extracts of fish scale and horsefly powder of embodiment 1, 6 parts of poria cocos, 10 parts of yam, 2 parts of pomegranate peel, 10 parts of chili oil and 12 parts of pretreated fly ash of embodiment 2.

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Abstract

The invention provides a feed additive for strengthening immunity of tilapia. The feed additive comprises the following raw materials in parts by weight of 26-35 parts of a scale and gadfly powder enzyme extract, 4-8 parts of poria cocos, 6-12 parts of yams, 1-3 parts of pomegranate bark, 7-14 parts of chili oil and 10-14 parts of pretreated coal ash. The additive can be directly added to feeds, so that the immunity of the tilapia can be improved, and the liver functions can be strengthened.

Description

technical field [0001] The invention belongs to the technical field of feed additives, in particular to a feed additive for enhancing the immunity of tilapia. Background technique [0002] Tilapia, commonly known as: African crucian carp, non-crucian carp, Vietnamese fish, Nanyang crucian carp, etc. Originally refers to the species of Oreochromis mossambicus with Mozambique as the model place of origin: Mozambique Oreochromis mossambicus (scientific name: Oreochromis mossambicus), now it is the genera of Oreochromis and Oreochromis in the family Cichlidae. The common common name; in English, it is collectively called Tilapia. Now it is a freshwater farmed fish cultivated by key scientific research in the world's aquaculture industry, and it is known as one of the main sources of animal protein in the future. Usually live in fresh water, can also live in salt water with different salinity, and can also survive in shallow water of lakes, rivers, and ponds. It has strong ada...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23K50/80A23K10/26A23K10/20A23K10/30A23K10/14A23K20/20A23K20/121A23K10/37A23K20/158
CPCY02P60/87
Inventor 齐德龙
Owner 合肥市大邵生态农业有限公司