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Low-fish-meal compound feed for litopenaeus vannamei suitable for low-salinity culture conditions

A technology of compound feed and low fish meal, applied in the direction of animal feed, animal feed, application, etc., can solve the problems such as the resistance to salinity stress of Litopenaeus vannamei, and achieve improved absorption and utilization efficiency, good antioxidant performance, The effect of reducing the cost of feed

Active Publication Date: 2021-02-02
GUANGDONG OCEAN UNIVERSITY +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this invention does not relate to how to improve the salinity stress resistance of Litopenaeus vannamei when using low fishmeal feed, and the minimum content of fishmeal in the examples is 17wt%

Method used

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  • Low-fish-meal compound feed for litopenaeus vannamei suitable for low-salinity culture conditions
  • Low-fish-meal compound feed for litopenaeus vannamei suitable for low-salinity culture conditions
  • Low-fish-meal compound feed for litopenaeus vannamei suitable for low-salinity culture conditions

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046]Example 1 Compound feed for Litopenaeus vannamei with different fishmeal content

[0047]In this embodiment, it is divided into 4 groups, among which:

[0048](1) Comparative group 1: Prawn compound feed containing 25wt% fish meal, that is, high fish meal compound feed (the content of fish meal in common commercial fish meal feed is generally 25wt%);

[0049](2) Experimental group 1: Prawn compound feed containing 20wt% fish meal;

[0050](3) Experimental group 2: Prawn compound feed containing 15wt% fish meal;

[0051](4) Experimental group 3: Prawn compound feed containing 10wt% fish meal.

[0052]The experimental group adopts a comprehensive alternative scheme: by using multiple protein sources (plant protein sources, animal protein sources, microbial protein sources), and adding essential amino acids (methionine, lysine, threonine, arginine, valine) , Histidine, leucine and isoleucine) to replace part of the fish meal, while adding flour, fish oil, calcium dihydrogen phosphate and other sug...

Embodiment 2

[0070]Example 2 Adding different concentrations of immune enhancers to low fish meal feed

[0071]In this embodiment, there are 5 groups in total, among which:

[0072](1) Comparative group 1 in Example 1: Prawn compound feed containing 25wt% fish meal;

[0073](2) Experimental group 2 in Example 1: Prawn compound feed containing 15wt% fish meal;

[0074](3) Experimental group 4: Experimental group 2+0.1wt% mannose oligosaccharide (immune enhancer), that is, add 0.1wt% mannose oligosaccharide (immune enhancer) to the shrimp compound feed containing 15wt% fish meal;

[0075](4) Experimental group 5: Experimental group 2+0.2wt% mannose oligosaccharide (immune enhancer), that is, add 0.2wt% mannose oligosaccharide (immune enhancer) to the shrimp compound feed containing 15wt% fish meal;

[0076](5) Experimental group 6: Experimental group 2+0.3 wt% mannose oligosaccharide (immune enhancer), that is, 0.3 wt% of mannose oligosaccharide (immune enhancer) is added to the shrimp compound feed containing 15 w...

Embodiment 3

[0097]Example 3 Adding anti-salinity stressors and immune enhancers to low fish meal feed

[0098]In this embodiment, there are 5 groups in total, among which:

[0099](1) Comparative group 1 in Example 1: Prawn compound feed containing 25wt% fish meal;

[0100](2) Experimental group 5 in Example 2: Prawn compound feed containing 15 wt% fish meal + 0.2 wt% mannose oligosaccharide (immune enhancer);

[0101](3) Experimental group 7: Prawn compound feed containing 15wt% fish meal + salinity stress resistance;

[0102](4) Experimental group 8: Prawn compound feed containing 15 wt% fish meal + 0.2 wt% mannose oligosaccharide (immune enhancer) + salinity stress resistance.

[0103]In this experiment, the comparative group 1 in Example 1 and the experimental group 5 in Example 2 were used as the control group for reference.

[0104]The feed used in experimental groups 7 and 8 was prepared according to the formula shown in Table 7. The anti-salinity stressors added in experimental groups 7 and 8 were a mixture...

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Abstract

The invention discloses a low-fish-meal compound feed for litopenaeus vannamei suitable for low-salinity culture conditions. The feed is prepared from, by weight, 60-75 parts of protein-sourced raw material, 3-6 parts of fat-sourced raw material, 22-28 parts of sugar-sourced raw material, 0.3-1 part of anti-salinity stress substance, 0.05-0.3 part of immunopotentiator, 0.2-1 part of essential amino acid, 0.5-2 parts of compound vitamin, 0.25-0.45 part of monovitamin, 0.5-2 parts of compound mineral salt, 0.01-0.05 part of an enzyme preparation, 1-2 parts of a phosphorus raw material and 0.9-1.1 parts of a feed adhesive. According to the feed, the content of fish meal is reduced to 14-16 wt% by balancing the composition of amino acids, and the salinity-resistant stress substance and immunopotentiator are added to improve the culture effect under low salinity. The litopenaeus vannamei fed with the low-fish-meal compound feed is high in growth speed, can utilize the feed well, has high survival rate, good oxidation resistance and high salinity stress resistance under the low-salinity culture condition, and the culture effect basically the same as that of common high-fish-meal feed canbe achieved.

Description

Technical field[0001]The invention relates to a low-fish meal compound feed for Litopenaeus vannamei, in particular to a low-fish meal compound feed for Litopenaeus vannamei suitable for low-salinity breeding conditions.Background technique[0002]Litopenaeus vannamei has the characteristics of strong adaptability to the environment, fast growth rate and high meat yield. It is the most widely cultivated species in the world and the highest aquaculture production. Litopenaeus vannamei was introduced to my country in 1988, after which large-scale seawater and brackish water aquaculture has been carried out. Southern coastal provinces such as Guangdong, Fujian, Guangxi and Hainan are the main breeding areas, and inland freshwater areas are gradually promoting aquaculture. The most important species of shrimp farming in my country.[0003]Fish meal is made from ocean-harvested fish (anchovies, sardines, herring, mackerel, etc.). It is the main protein source in many aquaculture species, esp...

Claims

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Application Information

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IPC IPC(8): A23K10/18A23K10/20A23K10/22A23K10/24A23K10/30A23K10/37A23K20/105A23K20/142A23K20/147A23K20/158A23K20/163A23K20/174A23K20/189A23K20/20A23K20/22A23K20/24A23K20/26A23K50/80
CPCA23K50/80A23K10/22A23K10/24A23K10/20A23K10/37A23K20/147A23K10/18A23K20/158A23K20/163A23K10/30A23K20/142A23K20/174A23K20/105A23K20/22A23K20/24A23K20/30A23K20/26A23K20/189Y02P60/87Y02A40/818
Inventor 谢诗玮牛津刘永坚田丽霞谭北平
Owner GUANGDONG OCEAN UNIVERSITY
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