Phagostimulant for sole larvae

A food attractant and juvenile fish technology, applied in the field of feed additives, can solve the problems of poor food attractant, achieve the effects of promoting food intake, improving survival rate, and stabilizing the source

Inactive Publication Date: 2006-02-22
OCEAN UNIV OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

And compared with the fresh biological bait, the artificial micro-particle feed is poor in attracting food. Therefore, it is necessary to develop an effective food attractant for juvenile soles.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0008] Embodiment 1: Take by weighing hypoxanthine nucleotide 25kg, betaine 15kg, alanine 15kg, arginine 10kg and sunset yellow 1 kilogram respectively, these five kinds of compositions are ground into fine powder (over 500 orders), then Mix evenly in a mixer (required coefficient of variation ≤ 5%), then add 34 kg of clam worm extract, which is the food attractant for juvenile soles of the present invention. The preparation method of the clam worm extract is as follows: take a certain amount of fresh clam worm, mash it, add 70% (weight percent) ethanol aqueous solution at a ratio of 1:1 and extract it for 48 hours, and finally completely dissolve the ethanol and water by rotary evaporation. After evaporating, the nereis extract can be obtained.

[0009] From November 18th to December 18th, 2004, half smooth tongue sole juveniles (initial weight: 0.82 ± 0.02g) were cultured in Jiaonan, Qingdao, Shandong. No food attractant of the present invention was added in the feed of the ...

Embodiment 2

[0010] Embodiment 2: Take by weighing hypoxanthine nucleotide 35kg, betaine 20kg, alanine 9kg, arginine 8kg and sunset yellow 3 kilograms respectively, these five kinds of compositions are ground into fine powder (over 500 orders), then Mix evenly in a mixer (required coefficient of variation ≤ 5%), then add 25 kg of clam worm extract, which is the food attractant for juvenile soles of the present invention.

[0011] In 2004, in Jiaonan, Qingdao, Shandong Province, a breeding experiment of juvenile tongue sole (initial weight: 0.82±0.02g) was carried out by adding the food attractant, and the results similar to those in Example 1 were obtained.

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PUM

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Abstract

Disclosed is a phagostimulant for sole larvae which comprises inosinic acid, clam worm extract, oxyneurine, alanine, arginine and Sunset yellow by the weight ratio of 25-35, 25-35, 15-20, 10-15, 8-10 and 1-3.

Description

technical field [0001] The invention relates to a feed additive, in particular to a food attractant for juvenile soles. Background technique [0002] At present, soles have become a new type of species in my country's aquaculture industry, such as half-smooth tongue sole and wide-body tongue sole are rare species in my country. Because of its large size, rapid growth and delicious meat, it is known as the "noble fish". In recent years, the artificial breeding of tongue sole and other soles has been successful, and its aquaculture industry has also been rapidly promoted. However, in the cultivation process of soles, fresh baits such as rotifers and artemias are still relied on, which not only greatly increases the cost of raising seedlings, but also has the disadvantages of unbalanced nutrition and carrying germs, which leads to the emergence of seedlings. The quality of the species has declined, seriously affecting the farming of adult fish. Under such circumstances, it i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23K1/16A23K10/20A23K20/142A23K20/153A23K20/179A23K50/80
Inventor 艾庆辉麦康森谭北平张文兵徐玮刘付志国马洪明刘峰
Owner OCEAN UNIV OF CHINA
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