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Soft granular feed special for female sturgeon and preparation method of soft granular feed

A soft pellet and sturgeon technology is applied to the field of special soft pellet feed for sturgeon females and its preparation, which can solve the problems of sturgeon spawning quantity, low egg quality, etc. Environmentally friendly effects of the preparation method

Active Publication Date: 2015-11-11
HANGZHOU QIANDAOHU XUNLONG SCI TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a method to ensure that the sturgeons get the most sufficient nutrition in the gonad development stage in order to solve the defects of the low egg production and egg quality of the existing sturgeon feed, so as to better promote the development of the gonads. , increase the amount of fecundity and the content of golden yellow eggs of rare egg color Special soft pellet feed for female sturgeon

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] A preparation method of special soft pellet feed for female sturgeon, said preparation method comprising the steps of:

[0028] a) Raw material processing: The preparation method of the algae extract includes: washing the dinoflagellates and Dunaliella salina and grinding them until gelatinized to form a slurry, adding ethanol 5 times the weight of the dinoflagellates and Dunaliella salina to the slurry, at 60Mpa, At 75°C, use carbon dioxide as a solvent for supercritical extraction. After concentration, put it into an aqueous ethanol solution with a mass fraction of 85% for ultrasonic extraction for 30 minutes and then filter to collect the filtrate. Add propolis with a mass of 2% of the filtrate to the filtrate and stir evenly. Concentrating the filtrate to a water content of 5% to obtain an algae extract; the power of the ultrasonic extraction in the preparation method of the algae extract is 75kw;

[0029] The plant leaves are soaked in 2.5% sodium alginate solution...

Embodiment 2

[0034] A preparation method of special soft pellet feed for female sturgeon, said preparation method comprising the steps of:

[0035]a) Raw material processing: The preparation method of the algae extract includes: washing the dinoflagellates and Dunaliella salina and then grinding them until gelatinized to form a slurry, adding ethanol 7 times the weight of the dinoflagellates and Dunaliella salina to the slurry, at 65Mpa, At 78°C, use carbon dioxide as a solvent for supercritical extraction. After concentration, put it into an aqueous ethanol solution with a mass fraction of 90% for ultrasonic extraction for 40 minutes and then filter to collect the filtrate. Add propolis with a mass of 3.5% of the filtrate to the filtrate and stir evenly. Concentrating the filtrate to a water content of 6.5% to obtain an algae extract; the power of the ultrasonic extraction in the preparation method of the algae extract is 80kw;

[0036] The plant leaves are soaked in 3.2% sodium alginate ...

Embodiment 3

[0041] A preparation method of special soft pellet feed for female sturgeon, said preparation method comprising the steps of:

[0042] a) Raw material processing: The preparation method of the algae extract includes: washing the dinoflagellates and Dunaliella salina and grinding them until gelatinized to form a slurry, adding ethanol with 10 times the weight of the dinoflagellates and Dunaliella salina to the slurry, at 70Mpa, At 80°C, use carbon dioxide as a solvent for supercritical extraction, concentrate, put it into an aqueous ethanol solution with a mass fraction of 95% for ultrasonic extraction for 45 minutes, and then filter to collect the filtrate. Add propolis with a mass of 5% of the filtrate to the filtrate and stir evenly Concentrating the filtrate to a water content of 8% to obtain an algae extract; the power of the ultrasonic extraction in the preparation method of the algae extract is 95kw;

[0043] The plant leaves are soaked in 4.2% sodium alginate solution f...

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Abstract

The invention relates to a soft granular feed special for female sturgeon and a preparation method of the soft granular feed. The feed comprises parent sturgeon expanded feed, and is prepared from the parent sturgeon expanded feed, adult eel formula feed, fish oil, algae extract, vegetable leaves, carrot, frozen trash fish and water. The feed is rich in nutrition, reasonable in formula, high in bait coefficient and high in survival rate, and can be used for promoting metabolism of fish bodies, reinforcing immunity of the fish bodies, promoting development of sexual glands of sturgeon and increasing the diameter of sturgeon roe, wherein carotenoid which is enriched in the vegetable leaves and carrot can be used for promoting pigmentation of sturgeon roe and is harmless to human bodies, so that the color of sturgeon roe is shallowed, even turned into golden yellow; meanwhile, the feed can be used for reinforcing the disease resistance of sturgeon, increasing the survival rate and increasing the size of roe by serving as an antioxidant. The preparation method is environmentally friendly, does not pollute the environment, and can be used for reducing cost and improving the feed utilization.

Description

technical field [0001] The invention belongs to the field of aquaculture, and in particular relates to a breeding soft granular feed formula for female sturgeon reserve broodstock, which ensures the most sufficient nutrition in the gonad development stage, better promotes the development of gonads, and improves the amount of pregnant eggs and the color of scarce eggs. The invention discloses a special soft granular feed for female sturgeon with the content of golden-yellow fish roe and a preparation method thereof. Background technique [0002] With the rapid development of the aquaculture industry, the large-scale breeding of sturgeon and the rapid development of the breeding industry have driven the development of the sturgeon feed industry objectively. [0003] The greatest economic value of sturgeon lies in the caviar known as "black soft gold". How to ensure that sturgeon get the most adequate nutrition during the gonad development stage, better promote the development ...

Claims

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Application Information

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IPC IPC(8): A23K1/18A23K1/14A23K1/10
CPCY02A40/818
Inventor 夏永涛孟祥龙韩磊王斌王宪策邵辉
Owner HANGZHOU QIANDAOHU XUNLONG SCI TECH
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