CN101828640A

CN101828640A - Compound immunopotentiator for post larvae of litopenaeus vannamei

Info

Publication number: CN101828640A
Application number: CN 201010148886
Authority: CN
Inventors: 董晓慧; 杨原志; 杨奇慧; 谭北平; 迟淑艳; 耿旭; 吴业阳; 石桂城
Original assignee: Guangdong Ocean University
Current assignee: Guangdong Ocean University
Priority date: 2010-04-09
Filing date: 2010-04-09
Publication date: 2010-09-15

Abstract

The invention relates to a compound immunopotentiator for post larvae of litopenaeus vannamei, which comprises the following components in percentage by weight: 20-30 percent of beta-glucan, 20-30 percent of chitosan, 5-10 percent of ginsenoside, 10-20 percent of astragalus polysaccharides, 5-10 percent of phospholipid, 40-60 percent of vitamin C-2-polyphosphate ester, 10-15 percent of vitamin E, 5-10 percent of vitamin A, 10-20 percent of bacillus subtilis and 1-5 percent of clamworm powder. The invention has the following advantages that: (1) the problem of feedback inhibition of the post larvae of litopenaeus vannamei is overcome effectively; (2) the immunity of the post larvae of litopenaeus vannamei is enhanced obviously, and the survival rate is increased; (3) the activity and the growth speed of the post larvae of litopenaeus vannamei are increased obviously; (4) the compound immunopotentiator has the addition amount of only 0.2-0.3% when used as a feed additive for a particle feed of the post larvae of litopenaeus vannamei; (5) no adverse effect on the palatability of the feed exists; and (6) the source of the raw materials is stable, the cost is low, and the production process is simple.

Description

The young shrimp of a kind of Environment of Litopenaeus vannamei Low is used composite immune reinforcing agent

Technical field

The present invention relates to a kind of feed addictive, particularly relate to the young shrimp of a kind of Environment of Litopenaeus vannamei Low and use composite immune reinforcing agent.

Background technology

The kind that Environment of Litopenaeus vannamei Low (Litopenaeus vannamei) is an area maximum in China's prawn culturing, output is the highest also is the shrimps product of China's export volume maximum.For improving survival rate, grow seedlings and use heavy dose of antibacterials often; Simultaneously, the way that also generally adopts high temperature to grow seedlings during prawn seed-rearing is accelerated the development by metamorphosis of the young, to shorten seedling raise period, reduces seedling cost.But the raiser generally believe " high temperature seedling " and heavy dose of use that antibiotic shrimp seedling is relatively slow in the forming stage speed of growth, a little less than the premunition, easily ill.Because problems such as medicament residue and bacillary drug resistance, restriction uses antibiotic cry more and more higher in the world, if between nursery stage, in young shrimp feed, improve its body disease-resistant power by adding immunopotentiator, just can reduce or even stop to use in the seedling raising process antibiotic, the action effect of the immunopotentiator of single component is limited, and the long-term problem that is prone to feedback inhibition of using.

Summary of the invention

The object of the invention provides the young shrimp of a kind of Environment of Litopenaeus vannamei Low and uses composite immune reinforcing agent, and it can overcome above-mentioned defective.

A kind of Environment of Litopenaeus vannamei Low is young uses composite immune reinforcing agent, and its component and percetage by weight scope are respectively: beta glucan 20-30; Shitosan 20-30; Ginsenoside 5-10; Astragalus polyose 10-20; Phosphatide, 5-10; Vitamin C-2-polyphosphate 40-60; Vitamin E 10-15; Vitamin A 5-10; Bacillus subtilis 10-20; Clam worm powder 1-5.

The present invention has following advantage: (1) has effectively overcome the problem of the young shrimp body of Environment of Litopenaeus vannamei Low feedback inhibition; (2) obviously strengthen the immunity of organisms of the young shrimp of Environment of Litopenaeus vannamei Low, improved survival rate; (3) obviously improve the young shrimp activity of Environment of Litopenaeus vannamei Low and the speed of growth; (4) use in the young shrimp particulate of Environment of Litopenaeus vannamei Low feed as feed addictive, additive capacity only is 0.2-0.3%; (5) the present invention does not have any harmful effect to the feed palatability; (6) its raw material source of the present invention is stable, cheap, and production technology is simple.

The specific embodiment

Take by weighing 30kg beta glucan, 20kg shitosan, 5kg ginsenoside, 10kg astragalus polyose, 10kg phosphatide, 40kg vitamin C-2-polyphosphate, 15kg vitamin E, 5kg vitamin A, 10kg bacillus subtilis, 2kg clam worm powder.The even mixing of these 10 kinds of materials is the young shrimp of Environment of Litopenaeus vannamei Low of the present invention uses composite immune reinforcing agent.It strengthens the resistance of the disease that bacterium and virus etc. is caused by improving the immunity of organisms of the young shrimp of Environment of Litopenaeus vannamei Low.

Embodiment 1

2008-2009, experiment at Zhanjiang City, Guangdong Province and Maoming City shows, use this composite immune reinforcing agent can make the speed of growth of young shrimp improve 21.34%-29.17% respectively in the young shrimp of Environment of Litopenaeus vannamei Low is cultivated, survival rate improves 19.27%-22.72% respectively.

Zhanjiang, the young shrimp aquaculture experimental result of Maoming Environment of Litopenaeus vannamei Low

Claims

1. the young shrimp of Environment of Litopenaeus vannamei Low is used composite immune reinforcing agent, it is characterized in that its component and percetage by weight scope are respectively: beta glucan 20-30; Shitosan 20-30; Ginsenoside 5-10; Astragalus polyose 10-20; Phosphatide, 5-10; Vitamin C-2-polyphosphate 40-60; Vitamin e1 0-15; Vitamin A 5-10; Bacillus subtilis 10-20; Clam worm powder 1-5.