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Composite immunostimulant and application of composite immunostimulant in scophthalmus maximus culture

An immune stimulant, turbot technology, applied in the field of compound immune stimulant and its application in turbot breeding, to achieve simple production process, increase weight gain rate, enhance phagocytosis index and superoxide dismutase activity Effect

Inactive Publication Date: 2012-04-11
OCEAN UNIV OF CHINA
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  • Description
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AI Technical Summary

Problems solved by technology

But so far, the complex immunostimulant composed of rare earth elements, chitosan oligosaccharides, glycyrrhizic acid and zeolite powder and its application in turbot culture have not been reported.

Method used

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Embodiment Construction

[0008] The composite immunostimulant for turbot breeding of the present invention is characterized in that it is composed of rare earth elements, chitosan oligosaccharides, glycyrrhizic acid and zeolite powder, and their weight percentage ranges are respectively 12-17, 13-20, 12- 17 and 43-63.

[0009] The rare earth elements are composed of lanthanum, terbium, dysprosium, thulium, holmium and lutetium, and their weight percent ranges are 36.04-55.64, 20.08-31.68, 9.88-13.88, 6.67-9.87, 6.56-7.96 and 0.77-0.97 . During implementation, weigh 47.13kg of lanthanum, 25.65kg of terbium, 12.11kg of dysprosium, 6.98kg of thulium, 7.22kg of holmium and 0.91kg of lutetium, and grind these six components into fine powders (over 200 meshes), and then Mix them uniformly (the coefficient of variation is required to be ≤5%, the same below), to obtain a mixture of rare earth elements. Take by weighing 14.26kg of rare earth element mixture, then weigh 17.14kg of chitosan oligosaccharides, 1...

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Abstract

The invention relates to a composite immunostimulant used for culturing scophthalmus maximus, which is composed of rare earth element, chitosan oligosaccharide, glycyrrhizic acid and zeolite powder. The scope of the weight percent are respectively: 12-17, 13-20, 12-17 and 43-63. The present invention has the advantages that (1) the composite immunostimulant is taken as a feed in scophthalmus maximus culture, the addition is only 0.025-0.045%; (2) the weight gain rate, specific growth rate, feed coefficient and survival rate of scophthalmus maximus juvenile can be substantially enhanced; (3) phagocytosis index of scophthalmus maximus and superoxide dismutase activity can be substantially increased; (4) the raw material of the invention has stable source and the production technology is simple.

Description

technical field [0001] The invention relates to a compound immune stimulant and its application in the culture of turbot (Scophthalmus maximus). Background technique [0002] Turbot is a cold-water flounder fish native to the coast of Europe. This fish is docile, grows fast, and has fresh and tender meat. It was introduced into my country in 1992. Turbot breeding has covered Shandong, Jiangsu, Zhejiang, Fujian and other provinces. It has become an important marine aquaculture fish in my country. However, with the increase of breeding density and the deterioration of the water environment, various bacterial diseases, viral diseases, and parasitic diseases occur from time to time. Antibiotics are often used in the diagnosis and treatment of diseases, but they directly lead to problems such as the increase of drug-resistant strains and drug residues. Adding immunostimulants to feed to prevent diseases by enhancing the immunity of farmed animals, such as β-glucan, mannan, etc.,...

Claims

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Application Information

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IPC IPC(8): A23K1/18A23K1/16
Inventor 徐玮崔丽卿艾庆辉汪东风麦康森刘付志国
Owner OCEAN UNIV OF CHINA
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