Compound enzyme feed additive capable of improving growth rate and non-specific immunity of prawns and application thereof

A feed additive and non-specific technology, applied in the field of feed additives and compound enzyme feed additives, can solve the problems of bacterial resistance, drug residues, disease outbreaks, etc., and achieve the effects of improving digestibility, low cost, and improving non-specific immunity

Active Publication Date: 2014-04-16
QINGDAO GENYUAN BIOLOGICAL TECH GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, with the rapid development of intensive farming of prawns, the deterioration of the water environment has led to disease outbreaks, and a large number of antibiotics and other prohibited drugs have been used for disease control, which has caused bacterial resistance and drug residues, etc.

Method used

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  • Compound enzyme feed additive capable of improving growth rate and non-specific immunity of prawns and application thereof
  • Compound enzyme feed additive capable of improving growth rate and non-specific immunity of prawns and application thereof
  • Compound enzyme feed additive capable of improving growth rate and non-specific immunity of prawns and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] The compound enzyme feed additive of the present invention comprises the following components: the content of mannanase is not less than 200 U / g; the content of xylanase is not less than 600 U / g; the content of cellulase is not less than 40 U / g; The content of glucoamylase is not less than 800 U / g; the content of lipase is not less than 20 U / g; the content of α-amylase is not less than 20 U / g; the content of β-amylase is not less than 600 U / g; neutral protease The content is not less than 1000 U / g; the carrier content is not less than 400 mg / g.

[0030] The specific content of the compound enzyme additive described in this example is that the content of mannanase is 200 U / gram; the content of xylanase is 600 U / gram; the content of cellulase is 40 U / gram; the content of glucoamylase is 800 U / gram The content of lipase is 20 U / gram; the content of α-amylase is 20 U / gram; the content of β-amylase is 600 U / gram; the content of neutral protease is 1000 U / gram; the content of...

Embodiment 2

[0036] Compound enzyme feed additive of the present invention is to the influence of prawn digestive enzyme activity, and test result is as follows: figure 1 and 2 As shown, within a certain range, with the increase of compound enzyme addition, the activity of amylase in the shrimp intestinal tract increased, and the average value of the 2‰ group was the highest. Statistical analysis showed that there was no significant difference between each group and the control group. The difference (P>0.05); the activity of hepatopancreatic lipase in the 5‰ group was significantly higher than that in the control group (P<0.05).

Embodiment 3

[0038] Compound enzyme feed additive of the present invention is to the influence of prawn serum immune index, and experimental result is as follows: image 3 As shown, the superoxide dismutase (SOD) activity in the shrimp serum was measured, and it was shown that adding different doses of enzyme preparations had a certain degree of influence on the SOD activity in the experimental shrimp serum. The activity was significantly higher than that of the control group (P<0.05).

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Abstract

The invention provides a compound enzyme feed additive capable of improving growth rate and non-specific immunity of prawns and application of the compound enzyme feed additive. The additive comprises mannase, xylanase, cellulase, a saccharifying enzyme, lipase, alpha-amylase, beta-amylase and neutral protease. The components are compounded and proportioned with a special carrier and are added into prawn feed by an additive amount of 0.2-0.3%. The product is environmentally friendly, can be used for industrialized production on a large scale, and a novel growth feed additive is provided for aquatic feed. The compound enzyme feed additive provided by the invention can remarkably improve growth of penaeus monodon, has the purposes of improving true nutritive value and reducing the food coefficient, and has promoting effects to different extents to activities of intestinal amylase, lipase of hepatopancreas and serum SOD (Superoxide Dismutase). Compared with additives with similar functions, the additive provided by the invention has the advantages of safety, specifity, no residues, no side effects and the like.

Description

technical field [0001] The invention belongs to the technical field of aquatic feed and relates to a feed additive, in particular to a compound enzyme feed additive for improving the growth rate and non-specific immunity of prawns and an application thereof. Background technique [0002] Shrimp is an important part of the international trade of aquatic products. In 2012, shrimp continued to rank first in the global aquatic product trade volume, accounting for 15%. However, with the rapid development of intensive farming of prawns, the deterioration of the water environment has led to disease outbreaks, and a large number of antibiotics and other prohibited drugs have been used for disease control, which has caused bacterial resistance and drug residues. In order to solve many contradictions such as breeding diseases, food safety and farming self-pollution, finding new green and environmentally friendly alternatives to antibiotics is a current research hotspot. [0003] The ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23K1/18A23K1/165
Inventor 梁晶晶周莉芬田相利谢金萍王娇蔡玉勇
Owner QINGDAO GENYUAN BIOLOGICAL TECH GRP
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