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Method for enhancing immunity of Fenneropenaeus chinensis

A Chinese shrimp, immunity technology, applied in the direction of animal feed, additional food elements, animal feed, etc., can solve the problems of decreased immune effect, immune fatigue, and high economic costs, and achieve the effect of saving economic costs

Inactive Publication Date: 2011-10-26
YELLOW SEA FISHERIES RES INST CHINESE ACAD OF FISHERIES SCI
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, in production practice, it has been shown that long-term use of a certain immune enhancer not only has high economic costs, but also causes immune fatigue to a certain immune enhancer, resulting in a decline in the immune effect.

Method used

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  • Method for enhancing immunity of Fenneropenaeus chinensis
  • Method for enhancing immunity of Fenneropenaeus chinensis
  • Method for enhancing immunity of Fenneropenaeus chinensis

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Embodiment Construction

[0017] The present invention will be further described below in conjunction with embodiment.

[0018] 1 Materials and methods

[0019] 1.1 Preparation of hydrolyzed fish protein powder and peptidoglycan

[0020] The preparation of hydrolyzed fish protein powder is the same as the invention patent: the preparation and application of Chinese prawn non-specific immune enhancer oligopeptide (application number: 20091022989.X); the peptidoglycan was donated by the Disease Research Office of the Yellow Sea Fisheries Research Institute.

[0021] 1.2 Experimental feed

[0022] With fish meal and soybean meal as the main protein source and fish oil as the main fat source, the basic feed is prepared. The ingredients are: 40% fish meal, 20% soybean meal, 23.5% high-gluten meal, 0.5% choline, 10% shrimp meal, 1% fish oil, Phospholipids 1.5%, multivitamins 1%, multiminerals 1%, calcium bicarbonate 1.5%; the ingredients of multivitamins (mg / kg or g / kg feed) are: thiamine, 25mg; riboflavin...

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Abstract

The invention relates to a method for enhancing immunity of Fenneropenaeus chinensis. The method is characterized in that Fenneropenaeus chinensis is fed with single Fenneropenaeus chinensis basal feed and Fenneropenaeus chinensis basal feed mixed with 1.4% (by weight) of hydrolyzed fish protein powder alternately, i.e. Fenneropenaeus chinensis is firstly fed with Fenneropenaeus chinensis basal feed mixed with 1.4% (by weight) of hydrolyzed fish protein powder for 7 days, and then fed with single Fenneropenaeus chinensis basal feed for 7 days, over and over again. The measured serum acid phosphatase activity, serum phenol oxidase activity, serum lysozyme activity, peroxidase activity change and serum superoxide dismutase activity of Fenneropenaeus chinensis fed by using the method provided by the invention are not significantly different from those of a Fenneropenaeus chinensis group continuously fed with hydrolyzed fish protein powder and a Fenneropenaeus chinensis group continuously fed with peptidoglycans; and the survival rate and weight increase rate are not significantly different from those of the Fenneropenaeus chinensis group continuously fed with hydrolyzed fish protein powder and the Fenneropenaeus chinensis group continuously fed with peptidoglycans. Therefore, compared with the method in which Fenneropenaeus chinensis is continuously fed with Fenneropenaeus chinensis basal feed mixed with 1.4% (by weight) of hydrolyzed fish protein powder, the method provided by the invention can obtain the same immunity effect but can reduce half of economic cost.

Description

Technical field: [0001] The invention belongs to the field of Chinese prawn cultivation, and specifically relates to a method for improving the immunity of Chinese prawns by alternately feeding the feed added with the immune enhancer and the feed without the immune enhancer. Background technique: [0002] The resistance of Chinese prawns is poor, and the aquaculture environment is large, so it is difficult to use targeted drugs. Therefore, once infected with diseases, almost the whole pond will be wiped out. The characteristics of the aquaculture industry determine that the focus is on prevention and control of aquaculture diseases. Therefore, how to improve the immunity of aquatic animals is the key to aquaculture. [0003] Immunopotentiators are a class of substances that can improve the immune ability of living organisms. Studies have found that microbial polysaccharides such as peptidoglycan, lipopolysaccharide, and dextran, as well as biologically active substances such...

Claims

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Application Information

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IPC IPC(8): A23K1/18A23K1/10A23K1/16A23K20/147A23K50/80
Inventor 梁萌青李素红滕玉清郑珂珂
Owner YELLOW SEA FISHERIES RES INST CHINESE ACAD OF FISHERIES SCI
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