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Leonurus artemisia extract, application thereof to fish feed, fish feed and preparation method of fish feed

A kind of motherwort extract and technology of motherwort, applied in the field of fish feed, can solve the problems of insignificant growth-promoting effect, low utilization rate, and unclear active ingredients, so as to improve anti-superoxide anion activity, improve feed efficiency, and benefit fish The effect of class growth

Active Publication Date: 2019-08-06
NEIJIANG NORMAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is: the active ingredient of the existing motherwort used as a fish feed additive is unclear and the utilization rate is not high, and the growth-promoting effect in high-density culture of freshwater fish is not obvious, and it needs to be further improved according to the mechanism of action.

Method used

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  • Leonurus artemisia extract, application thereof to fish feed, fish feed and preparation method of fish feed
  • Leonurus artemisia extract, application thereof to fish feed, fish feed and preparation method of fish feed
  • Leonurus artemisia extract, application thereof to fish feed, fish feed and preparation method of fish feed

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Experimental program
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Effect test

Embodiment 1

[0059] Obtain 1000 g of the aerial part of Motherwort, dry it in a blast drying oven at 50° C. to constant weight, crush it through a 18-mesh sieve, and obtain Motherwort powder.

[0060] Take motherwort powder 400g, mix motherwort powder and petroleum ether according to the ratio of 1:7-9, rotate and stir at 800 rpm for 6 hours; filter the mixed solution to obtain a clear filtrate and residue, repeat the extraction of the residue 3 times and combine The filtrate was obtained to obtain residue I; the filtrate was distilled under reduced pressure to constant weight to remove petroleum ether, and the extract of motherwort petroleum ether was obtained. Mix the residue I after extraction of motherwort petroleum ether with ethyl acetate at a ratio of 1:7-9, and rotate and stir at 800 rpm for 6 hours; filter the mixture to obtain a clear filtrate and residue, and repeat the extraction of the residue 3 times The filtrates were combined to obtain residue II; the filtrate was distilled...

Embodiment 2

[0072] In order to explore the effect of motherwort extract as a fish feed additive on high-density culture of freshwater fish, the following experiments were carried out:

[0073] 1. To study the effects of stocking density changes on fish body weight, food intake and feed efficiency.

[0074] A number of crucian carp fry were purchased locally, and after being temporarily raised in the breeding room for a week, 720 crucian carp fry with a body weight of 8.0±0.2g were selected and randomly divided into 8 treatment groups, each with 4 fish tanks, and the number of fish tails in the 8 treatment groups were respectively : 5, 10, 15, 20, 25, 30, 35 and 40 tails / cylinder. Among them, the shape, size and color of each fish tank are the same, the size is 30cm×30cm×40cm, and a built-in 800L / h flow aerator. Tap water is used as the water source, and the water volume in the tank is 31L. The breeding room temperature is controlled at 22±2°C; the aerator continuously supplies oxygen; t...

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Abstract

The invention discloses a leonurus artemisia extract, an application thereof to a fish feed, the fish feed and a preparation method of the fish feed. The problems that effective components of an existing leonurus artemisia extract for a fish feed additive are not definite, the extraction rate is not high, and the growth promotion effect of the existing leonurus artemisia extract in high-density breeding of freshwater fish is inapparent and needs to be further increased according to the action mechanism are solved. The leonurus artemisia extract is applied to a fish feed for the high-density breeding of the freshwater fish to be used as a growth promoting agent, so that the activity of lipases and amylases in intestinal tracts can be improved. The optimal addition quantity of the leonurus artemisia extract is 0.35-0.4%. The leonurus artemisia extract has the advantages of being good in leonurus artemisia extraction effects, good in growth promotion effects on fish during the high-density breeding of the freshwater fish and the like.

Description

technical field [0001] The invention relates to the technical field of fish feed, in particular to motherwort extract and application thereof, fish feed and a preparation method thereof. Background technique [0002] Motherwort (Leonurus artemisia (Laur.) S.Y.Hu F) is an annual or biennial herb of the Lamiaceae genus Leonurus. It is distributed in most parts of the country, and grows in wild lands, fields, grasslands, etc. The dry aerial part of motherwort is a commonly used traditional Chinese medicine. Modern pharmaceutical research results show that motherwort is rich in alkaloids, diterpenes, flavonoids, polyphenols and polysaccharides, etc. Tonify blood, promote blood circulation and remove blood stasis, promote blood coagulation and increase the production of laying hens. [0003] Fish breeding requires a large amount of feed, and the growth of fish determines the output of fish. Therefore, in the existing aquaculture and feed processing, growth promoters are often ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23K50/80A23K10/30A23K10/22A23K10/37A23K20/142A23K20/158A23K20/174A23K20/20A23K20/22
CPCA23K50/80A23K10/30A23K10/22A23K10/37A23K20/142A23K20/158A23K20/174A23K20/30A23K20/22Y02A40/818Y02P60/87
Inventor 李华涛龙娇吴敏廖艺红袁萍周思顺敬晓琴罗朋
Owner NEIJIANG NORMAL UNIV
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