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Composite immunoenhancement feed additive for litopenaeus vannamei and application and feed thereof

A feed additive and immune enhancement technology, which is applied in the fields of application, animal feed, animal feed, etc., can solve the problems of immune fatigue, large dosage, and short immune stimulation time, and achieve reduced dosage, convenient use, and prolonged immune stimulation time Effect

Inactive Publication Date: 2012-10-24
广东省农业科学院畜牧研究所 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, with the deepening of the research, it was found that when β-glucan is added to the feed alone, the immunostimulatory effect is short, the dose is large, and the immune fatigue is prone to occur when it is used for a long time.

Method used

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  • Composite immunoenhancement feed additive for litopenaeus vannamei and application and feed thereof
  • Composite immunoenhancement feed additive for litopenaeus vannamei and application and feed thereof
  • Composite immunoenhancement feed additive for litopenaeus vannamei and application and feed thereof

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Experimental program
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Effect test

Embodiment 1

[0021] 1. Feeding experiment

[0022] Feed grouping:

[0023] G0 group feed: common Litopenaeus vannamei basal feed

[0024] G1 group feed: β-glucan was added to the basal feed of common Litopenaeus vannamei, and the added amount was 300 mg β-glucan per kilogram of basal diet of common Litopenaeus vannamei.

[0025] G2 group feed: β-glucan and selenium methionine were added to the basal diet of common Litopenaeus vannamei, and the addition amount was 300 mg β-glucan and 0.2 mg selenium per kilogram of basal diet of common Litopenaeus vannamei, in the form of selenium methionine Add to.

[0026] Feed for group G3: β-glucan and vitamin E were added to the basal feed of common Litopenaeus vannamei.

[0027] G4 group feed: β-glucan, selenium and vitamin E were added to the basal diet of common Litopenaeus vannamei. Added in the form of selenium, vitamin E 100mg.

[0028] G5 group feed: β-glucan, selenium and vitamin E were added to the basal diet of common Litopenaeus vanname...

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Abstract

The invention discloses a composite immunoenhancement feed additive for litopenaeus vannamei and an application and feed thereof. The composite immunoenhancement feed additive for litopenaeus vannamei comprises beta-dextran and selenium methionine; when selenium methionine is calculated on the basis of the selenium amount, the mass ratio of beta-dextran to selenium methionine is 150-300:0.2. According to the invention, experiments show that common basal feed for litopenaeus vannamei is added with the combination of beta-dextran and selenium methionine according to a certain mass ratio, or the combination of beta-dextran and vitamin E according to a certain mass ratio, or the combination of beta-dextran, selenium methionine and vitamin E according to a certain mass ratio; through the antioxidation approach of selenium methionine and vitamin E, the immune defense capability of litopenaeus vannamei bodies is improved; the immunostimulation time of beta-dextran is effectively prolonged; the using amount is decreased; and the immune fatigue problem generated when beta-dextran is used alone is solved. The additive of the invention can be added into basic ration of litopenaeus vannamei directly, and is convenient for use.

Description

Technical field: [0001] The invention belongs to the field of aquatic feed, and in particular relates to a compound immune-enhancing feed additive for Litopenaeus vannamei, an application thereof, and a feed containing the feed additive. Background technique: [0002] Litopenaeus vannamei, commonly known as Penaeus vannamei, is one of the three most productive shrimp species in the world today. It has the characteristics of strong disease resistance, fast growth, miscellaneous food habits, and low nutritional requirements. It is a high-quality variety of "Sea Shrimp Light Farming", and it is also the aquaculture variety with the highest aquaculture area and output in China. In recent years, with the continuous expansion of the scale of prawn farming and the continuous increase of the breeding density, prawn farming is facing a lot of problems, such as intense stress from factors such as crowding, nutrition, environment, and metabolism, resulting in poor stress resistance and...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23K1/16A23K1/18
Inventor 曹俊明黄燕华刘群芳王国霞
Owner 广东省农业科学院畜牧研究所
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