Compound immunoenhancer for larvae and juvenile of tilapia

An immune enhancer, the technology of one tilapia, applied in the application, animal feed, additional food elements, etc., can solve the problems of poor stress resistance, low degree of feed absorption and utilization, and low survival rate of larvae and juveniles, so as to improve the The effect of activity and growth rate, enhancement of immunity, and simple production process

Inactive Publication Date: 2010-01-20
GUANGDONG OCEAN UNIVERSITY
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Problems solved by technology

[0003]Tilapia is an oral brooding fish, and natural hatching has the following disadvantages: long hatching time, hindered growth of broodstock, decreased fecundity; low, poor uniformity
Artificial hatching will inevitably involve the cultivation of fry. In the cultivation, only relying on feeding biological bait cannot guarantee the growth and development of larvae. It is necessary to have a full-p

Method used

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  • Compound immunoenhancer for larvae and juvenile of tilapia

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[0007] Weigh 30kg β-glucan, 5kg ginsenoside, 10kg seaweed polysaccharide, 10kg phospholipid, 20kg vitamin C-2-polyphosphate, 15kg vitamin E, 5kg digestive enzyme, 5kg citric acid, and mix these 8 substances evenly. It is the compound immune enhancer for the larvae and juveniles of Onilopagus of the invention. It enhances the immunity of tilapia larvae and juveniles, and enhances the resistance to diseases caused by bacteria and viruses.

[0008] From 2007 to 2008, experiments in Zhanjiang City and Maoming City, Guangdong Province showed that the use of the compound immune enhancer during the whole breeding cycle of artificially hatched Ani tilapia fry can increase the growth rate of larvae and juveniles by 17.76-20.59, respectively. %, the survival rate was increased by 18.78-20.71%.

[0009] Experimental results of larval and juvenile tilapia breeding in Zhanjiang and Maoming

[0010]

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Abstract

A compound immunoenhancer for larvae and juvenile of tilapia comprises the following components by weight percent: beta-glucan 20-30, ginsenoside 5-10, seaweed polysaccharides 10-20, phospholipids 5-10, vitamin C-2-polyphosphate ester 20-30, vitamin E 10-15, digestive enzyme 5-10 and citric acid 5-10. The compound immunoenhancer obviously strengthens the immunity of the larvae and juvenile of the tilapia and increases the survival rate, the activities and growth speed of the larvae and juvenile of the tilapia; the compound immunoenhancer is used as a feed additive in the feed of the larvae and juvenile of the tilapia, with additive dosage of only 0.2-0.3%, which has no adverse effect on the feed palatability. The used raw materials enjoy stable sources, low price and simple production technology.

Description

technical field [0001] The invention relates to a composite immune enhancer for tilapia larvae and juveniles. Background technique [0002] Tilapia belongs to the genus Tilapia of the family Cichlidae of the order Perciformes. It is a tropical fish with more than 100 species, most of which are produced in Africa. Tilapia has the characteristics of fast growth, wide feeding habits, strong fecundity, few diseases, good meat quality and high yield. At present, the main breeds are: Oni tilapia, Jifu tilapia, Gio tilapia and more than 10 varieties. Oni tilapia is the hybrid offspring of Oria tilapia and Nile tilapia, and is currently the main species of tilapia cultured in China. There is a vast area suitable for tilapia farming in the southern coastal areas of my country, and tilapia farming has huge development potential and favorable conditions. [0003] Tilapia is an oral hatching fish, and natural hatching has the following disadvantages: long hatching time, growth of bro...

Claims

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Application Information

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IPC IPC(8): A23K1/18A23K1/16A23K1/165A23K20/105A23K20/121A23K20/158A23K20/163A23K20/174A23K20/189A23K50/80
Inventor 董晓慧杨原志杨奇慧谭北平陈刚迟淑艳耿旭郭云学
Owner GUANGDONG OCEAN UNIVERSITY
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