Asiatic pennywort herb extract feed additive and preparation method thereof

A technology of centella asiatica extract and feed additive, applied in animal feed, animal feed, application, etc., can solve the problems of difficult to distinguish pathogens, mixed infection, etc., reduce the incidence of disease, have strong palatability, restore and enhance animal immunity The effect of system function

Inactive Publication Date: 2011-08-10
SHANGHAI NONGHAO BIOTECH RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the current symptoms are generally mixed infections, and sometimes it is difficult to distinguish which pathogen is the main one.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0023] A kind of preparation method of centella asiatica extract feed additive, concrete steps are as follows:

[0024] Step 1, the whole herb of the raw material Centella asiatica is picked, shortened and cleaned respectively;

[0025] Step 2, put the raw materials into a multi-functional extraction tank, after 6 times the amount of water, boil for 1 hour, treat with a steam pressure of 1Mpa, filter to obtain the first filtrate and filter residue, and continue to concentrate the filtrate to obtain a concentrate;

[0026] Step 3, the filter residue is passed through 6 times the amount of water again, boiled for 1 hour, treated at a steam pressure of 1Mpa, and filtered to obtain the second filtrate and filter residue respectively; the filter residue is discarded;

[0027] Step 4, mixing the first filtrate and the second filtrate and concentrating to a specific gravity of D=1.19-1.2 to obtain Centella asiatica extract;

[0028] Step 5, put the extract into a container, and keep...

Embodiment 1

[0034] 2009.07.20----2009.08.20 at the Shanghai Baishu Fine Breed Demonstration Farm, the experimental animals were the late-growing Du Sanyuan pigs. The results of the control addition test were carried out as follows

[0035] Test index

test group

control group

significant

Daily weight gain (g)

855

784

P＜0.05

Daily feed intake (g)

2291

2384

-

Feed to meat ratio

2.98

3.01

-

Survival rate (%)

100

97

-

Diarrhea incidence

14％

25％

P＜0.01

respiratory morbidity

22％

34％

P＜0.05

Incidence of PRRS

13％

27％

P＜0.01

[0036] in conclusion:

[0037] 1. Improve the palatability of feed, increase the daily feed intake of animals, and increase the daily weight gain;

[0038] 2. Improve the feed-to-meat ratio and reduce production costs;

[0039] 3. Reduce the incidence of respiratory and digestive tract disease...

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PUM

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Abstract

The invention discloses an asiatic pennywort herb extract feed additive and a preparation method thereof, and a preparation is formed by performing multiple circulating extraction on whole herbs of asiatic pennywort herbs, and then uniformly mixing with a carrier. The preparation method comprises the following steps: step 1) performing preliminary extraction on the whole herbs of the asiatic pennywort herbs; and step 2) performing secondary circulating extraction on remains after the extraction in the step 1), performing spray-drying treatment on the obtained liquid extract, and the uniformly mixing with the carrier for forming the asiatic pennywort herb extract feed additive. The asiatic pennywort herb extract feed additive has the advantages of clearing heat, promoting diuresis, activating blood circulation, stopping bleeding, removing toxin, subsiding swelling, improving animal immunity and the like.

Description

technical field [0001] The invention relates to a feed additive of centella asiatica extract and a preparation method thereof, which has the functions of clearing away heat and promoting dampness, promoting blood circulation to stop bleeding, detoxifying and reducing swelling, and improving animal immunity. It belongs to the technical field of natural plant additives. Background technique [0002] With the continuous expansion of the scope of industrialized breeding in my country, pigs of various ages, especially piglets, are characterized by respiratory diseases and diarrhea due to various reasons, and have now become one of the main diseases in large-scale pig farms. Among them, the most important porcine respiratory disease syndrome (PRDC) and a series of pathogenic bacteria due to the application of antibiotics have developed drug resistance and caused a series of diarrhea caused by various reasons, such as growth rate reduction, feed utilization rate reduction, The dis...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23K1/17A23K1/14A23K1/18A23K10/30
Inventor 陈佳铭黄顺捷陈泽发陈伟真陈莎莎陈俊平
Owner SHANGHAI NONGHAO BIOTECH RES INST
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