Application of active novel neoagaro-oligosaccharides as immunopotentiator for aquiculture

An immunopotentiator, a technology of new agar oligosaccharide, which is applied in the application field of active new agar oligosaccharide as an immunopotentiator in aquaculture, can solve the problems of complex processing process and affect the performance of Chinese herbal medicine, achieve wide efficacy, improve non-specific Heterosexual defense mechanism, the effect of enhancing resistance

Inactive Publication Date: 2008-05-21
SOUTH CHINA UNIV OF TECH
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The quality of processing technology directly affects the performance

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  • Application of active novel neoagaro-oligosaccharides as immunopotentiator for aquiculture

Examples

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[0017] Example 1

[0018] The method and effect of using the active new agar oligosaccharide of the invention as an oral immune enhancer for abalone.

[0019] 1. Configuration of active new agar oligosaccharides and feed

[0020] Biotechnologically treat the agar to prepare agar oligomeric agarose with an average molecular weight of 200-1800Da, with β-D-galactose as the reducing end and 3,6-internal ether α-L galactose as the non-reducing end. The active new agar oligosaccharide of the sugar series refers to the active new agar oligosaccharide with an average molecular weight in the range of 200-1800Da, and the added amount is any concentration within the range of 0.05-10% of the total weight of the feed. Significantly improve the non-specific immunity of fish, shrimp, shellfish and crab, enhance the body's cellular immunity, enhance the activity of resisting bacteria, and can also significantly accelerate its growth and weight gain. In the examples, only the different concen...

Example Embodiment

[0031] Example 2

[0032] The method and effect of using the active new agar oligosaccharide of the invention as an oral immune enhancer for tilapia, Penaeus vannamei and Eriocheir sinensis.

[0033] The preparation method of the active new agar oligosaccharide feed is the same as in Example 1.

[0034] Different levels of active new agar-oligosaccharides were added to the diets of tilapia, Penaeus vannamei and Chinese mitten crab. Select healthy and uniform tilapia, vannamei, and mitten crabs and randomly divide them into 9 groups. The average molecular weight is selected in order of 200Da, 400Da, 700Da, 900Da, 1100Da, 1200Da, 1500Da, 1800Da, and the weight of active new agar oligosaccharide For the feeds whose percentages are 0.05%, 0.4%, 0.6%, 0.8%, 3%, 5%, 8%, and 10%, different feeds are used respectively, and the normal feeding and management procedures are used. Group 9 is the control group, which is fed with basal diets. Groups 1 to 8 of tilapia are the experimental gr...

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Abstract

The invention relates to an immunopotentiator for acquiculture animals, in particular to the application which adopts active Neoagaro-oligosaccharides as an immunopotentiator in acquicuture industry. The application chooses active Neoagaro-oligosaccharides of agar oligomers series which have average molecule weight ranging from 200 to 1800Da, and take Beta-D-galactose as a reductive end and 3, 6-innerether-Alpha-L galactose as a non-reductive end, and the adding quantity of the immunopotentiator is 0.05 to 10 percent of the total foodstuff weight. The application has very remarkable functions on enhancing the non-specific immunity of fishes, shrimps and cramps, shellfish and crabs and improving the immunity of body cells, and also has very high activity in resisting bacteria infection, and can obviously accelerate the growth and weight growing. After cultivation experiments, the immunity, disease resistance, growth speed and survival rate of fishes such as tilipia, shrimps and cramps such as South America white shrimp, shellfhish and crabs are all dramatically enhanced. The invention is characterized by simple use and various using means, and is suitable for the cultivation of various acquicultrue animals.

Description

technical field [0001] The invention relates to an immune enhancer for aquaculture animals, which belongs to the immune enhancer and feed nutrients for aquaculture animals, and specifically refers to the application of an active new agar oligosaccharide as an immune enhancer in aquaculture. Background technique [0002] With the increasing development of fishery production, my country's aquaculture has made great achievements. The aquaculture output has continued to grow steadily and has become the world's largest aquaculture country. However, with the continuous strengthening of the degree of intensification and the increase of aquaculture density, With the deterioration of the breeding environment, the diseases are becoming more and more serious, and the breeding diseases occur frequently on a large scale, causing huge losses to the breeding industry. Therefore, disease prevention and healthy breeding of aquatic animals have attracted more and more attention. At present, t...

Claims

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Application Information

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IPC IPC(8): A23K1/18A23K1/17A23K20/163A23K50/80
Inventor 蔡俊鹏马小花
Owner SOUTH CHINA UNIV OF TECH
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