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Phagostimulant of pseudosciaena crocea larvae

A technology of larvae and juvenile fish and feed attractant, which is applied in the field of feed additives, can solve problems such as feed-attraction defects, and achieve the effects of reducing residual bait, promoting feeding, and improving growth and survival rate.

Inactive Publication Date: 2007-11-28
OCEAN UNIV OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The existing artificial micro-particle feed has not achieved ideal results in the seedling cultivation process. This is mainly due to the fact that compared with fresh and live biological baits, the existing artificial micro-particle feeds have relatively large defects in the food-attracting properties, and the fresh and live biological baits have relatively large defects. Presence of chemical and visual stimulants such as free amino acids etc.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0007] Embodiment 1: Weigh respectively 21kg of hypoxanthine nucleotide, 19kg of betaine, 13kg of alanine, 10kg of glycine, 8kg of cuttlefish viscera powder and 3kg of tomato red, and grind these six components into fine powder (over 600 mesh) , and then mix uniformly in a mixer (required coefficient of variation≤5%), then add 26 kilograms of nereis extract, which is the large yellow croaker juvenile food attractant of the present invention. The preparation method of the clam worm extract is: take a certain amount of fresh clam worm, mash it, add 70% (weight percentage) ethanol aqueous solution to extract 48h by 1:1 (weight ratio), and finally remove the ethanol by rotary evaporation. After complete evaporation, the nereis extract can be obtained.

[0008] · From March 18th to April 18th, 2004, large yellow croaker juveniles (initial weight: 1.8±0.12mg) were cultured in Xiangshan, Zhejiang. Using low-temperature white fish meal, shrimp meal and mussel meal as the main protein...

Embodiment 2

[0009] Embodiment 2: Weigh 30kg of inosine nucleotide, 15kg of betaine, 10kg of alanine, 8kg of glycine, 6kg of cuttlefish viscera powder and 1kg of sunset yellow, and grind these six components into fine powder (over 600 mesh) , and then mix uniformly in a mixer (required coefficient of variation≤5%), then add 30kg clam worm extract, which is the large yellow croaker juvenile food attractant of the present invention.

[0010] In 2005, in Xiangshan, Zhejiang Province, a large yellow croaker juvenile (initial weight: 1.5 ± 0.10 mg) breeding experiment was carried out by adding the food attractant, and the results similar to those in Example 1 were obtained.

[0011] This medicine can not only enable animals to obtain feed in a short period of time and promote bait intake behavior, reduce feed consumption, but also can promote the secretion of digestive enzymes, improve the digestion and absorption function of juvenile large yellow croaker larvae, thereby promoting survival and ...

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Abstract

Disclosed is a phagostimulant of pseudosciaena crocea larvae, which comprises inosinic acid, clam worm extract, oxyneurine, alanine, glycine, cuttlefish internal organ powder and tomatine by the weight ratio of 20-30, 25-35, 15-20, 10-15, 8-10, 6-8 and 1-3.

Description

technical field [0001] The invention relates to a feed additive, in particular to a food attractant for large yellow croaker juveniles. Background technique [0002] Large yellow croaker is endemic to my country and is mainly distributed along the southeast coast of my country. It is delicious and delicious, so it is very popular among people. Historically, large yellow croaker was once one of the famous "four marine animals" in my country. However, due to overfishing, large yellow croaker could no longer form a fishing season under natural conditions in the 1970s. With the success of artificial breeding of large yellow croaker in the 1980s, its breeding industry has been promoted on a large scale. At present, large yellow croaker has become one of the most important marine cultured fish in my country, and more than 1 billion large yellow croaker fry are bred every year. During the breeding process of large yellow croaker juveniles, they mainly rely on fresh biological ba...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A23K1/16A23K10/20A23K20/142A23K20/153A23K20/179
Inventor 艾庆辉麦康森谭北平张文兵刘付志国刘峰
Owner OCEAN UNIV OF CHINA
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