Spotted maigre young postlarva feeding promoting agent and method of preparing the same

A technology of larvae and juvenile fish attractants, which is applied in the field of croaker larvae and juvenile fish attractants and its preparation, can solve the problems of low nutritional level and bait utilization rate, general animal food intake, and food-attractive defects. Achieve the effects of improving survival rate and anti-stress ability, improving high temperature and hypoxia resistance, and reducing residual bait

Inactive Publication Date: 2009-04-08
ZHEJIANG OCEAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But there are also many disadvantages, such as the average food intake of animals, low nutritional level and bait utilization rate
A single L-amino acid or its mixture has also been used as a food-attracting additive for fish and shrimp, but its use is limited due to its high cost and high price of top-grade products. Problems to be solved and research and development hotspots
[0004] The existing artificial...

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Embodiment 1: a kind of food attractant for juvenile yellow croaker larvae, specific formula: take by weighing respectively 0.05kg of dimethyl-beta-thiatin propionate (DMPT), 0.13kg of trimethylamine oxide (TMAO), trimethylpropyl glycine 0.15kg fat, 21kg hypoxanthine nucleotide, 2.5kg betaine, 13kg alanine, 10kg glycine, 26kg cuttlefish viscera powder and 3kg tomato red, grind these 9 ingredients into a fine powder with a particle size of about 600 mesh , and then mix uniformly in a mixer, requiring a coefficient of variation ≤ 5%, then add 28kg clam worm extract, which is the food attractant for juvenile yellow croaker of the present invention. The nereis extract in it. The preparation method of the clam worm extract is as follows: take a certain amount of fresh clam worm, mash it, add 70% by weight ethanol aqueous solution at a weight ratio of 1:1, extract for 48 hours, and finally evaporate the ethanol completely by rotary evaporation, that is Nereis extract can be ...

Embodiment 2

[0020] Embodiment 2: a kind of food attractant for juvenile yellow croaker larvae, specific formula: take by weighing 0.1kg of dimethyl-beta-thiatin propionate (DMPT), 0.18kg of trimethylamine oxide (TMAO), trimethylpropyl glycine Fat 0.24kg, hypoxanthine nucleotide 25kg, betaine 3.2kg, alanine 12kg, glycine 4kg, squid viscera powder 28kg and tomato red 1kg, these 9 kinds of ingredients are ground into 600 mesh fine powder, then in the mixer Mix evenly in medium, require coefficient of variation≤5%, then add 30kg clam worm extract, be the food attractant of juvenile yellow croaker of the present invention.

[0021] In 2007, the same juvenile croaker (1.7 ± 0.13 mg) was cultured in Zhoushan, Zhejiang, and the results similar to those in Example 1 were obtained.

[0022] The present invention can not only enable animals to obtain feed and promote bait intake behavior in a short period of time, and reduce the consumption of bait, but also the food attractant can promote the secre...

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Abstract

The invention discloses a phagostimulant for fish larvae and juveniles of spotted maigre and a preparation method thereof. The phagostimulant comprises the following compositions in portion by weight: 0.05 to 0.1 portion of dimethyl-beta- propionic acid thetine, 0.1 to 0.2 portion of kanirin, 0.1 to 0.3 portion of glycine trimethylpropyl, 20 to 30 portions of inosinic acid, 25 to 35 portions of clamworm extracting solution, 1 to 5 portions of betaine, 10 to 15 portions of lactamine, 8 to 10 portions of glycin, 26 to 28 portions of internal organ powder of cuttlefish, and 1 to 3 portions of lycopene. The preparation method of the phagostimulant comprises the following steps: raw materials are weighed according to weight portions and are mixed, and then the clamworm extracting solution produced by the mixing extraction of alcohol is added into the mixture. The phagostimulant has the advantages that the phagostimulant has small using amount, apparent effect, steady sources, low price, and simple production technology, can effectively improve survival rate, reduce the waste of baits, can also improve the high temperature resistance and the anti-anoxia ability of fish, strengthen the endurance of the fish to the change of water environment, and can improve the meat quality of breed varieties.

Description

technical field [0001] The invention relates to a feed additive for yellow croaker, in particular to a food attractant for juvenile yellow croaker and a preparation method thereof. Background technique [0002] Yellow croaker has delicious meat and rich nutritional value, and is deeply loved by the masses. However, due to the unbalanced nutrition of fresh and live biological bait, it is easy to carry pathogenic microorganisms, which leads to the decline of seed quality and seriously affects the cultivation of adult fish. Therefore, it is imperative to develop high-efficiency and high-quality artificial pellet feed for yellow croaker. [0003] Food attractant belongs to a kind of non-nutritional additives. Adding appropriate amount in aquatic feed can improve the palatability of feed, improve the quality of bait, and stimulate the senses of smell, vision and taste of aquaculture animals, making them gather around the bait, thus Improve the appetite of aquatic animals, maint...

Claims

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Application Information

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IPC IPC(8): A23K1/18A23K1/16A23K1/00A23K10/26A23K20/10A23K20/105A23K50/80
Inventor 吴常文叶德峰徐佳晶迟长凤
Owner ZHEJIANG OCEAN UNIV
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