Application of algae extract as antibiotic substitute in feed

A technology of algae extract and antibiotics, applied in the direction of animal feed, animal feed, application, etc., to avoid drug resistance, enhance nutrition, and enhance animal immunity

Inactive Publication Date: 2010-12-08
湖北汇特生物医药技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, with the continuous improvement of people's awareness, it is found that there are i

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] The cultivated chlorella is centrifuged to obtain the algae, dried, and ultrafinely crushed, and the fatty acids are extracted by alkaline ether extraction, and the average content of ω-3 unsaturated fatty acids is detected by gas chromatography-mass spectrometry . Chlorella powder with an average content of omega-3 unsaturated fatty acids not less than 1% is selected as a raw material, sterilized by ultraviolet radiation, sealed and bagged to obtain a finished product.

[0027]Piglet feeding experiment

[0028] Sixty 45-day-old three-way hybrid piglets with no disease and similar body weight were selected and randomly divided into 3 groups, 20 pigs in each group: Group A experimental group, Group B control group, and Group C blank group. The experiment was carried out for 60 days, and the rats were fed three times a day in the morning, noon and evening, and had free access to water. After the feeding experiment, the animals were fasted for 5 hours under the condition...

Embodiment 2

[0048] The cultivated spirulina is centrifuged to obtain the algal body, dried, ultrafinely crushed, and the fatty acid is extracted by the alkaline ether extraction method, and the average content of the ω-3 unsaturated fatty acid is detected by the gas chromatography-mass spectrometry method. Chlorella powder with an average content of ω-3 unsaturated fatty acids not less than 1% is selected as raw material, and after supercritical carbon dioxide extraction, seaweed oil with an ω-3 unsaturated fatty acid content of more than 50% is obtained, which is sealed and packaged. finished product.

[0049] Broiler Feeding Experiment

[0050] Select 300 yellow-feathered broilers on the 3rd, randomly screen the ratio of female and male, and divide them into three groups, 100 in each group, the experimental group of group A (add the above-mentioned finished product in the daily feed according to the ratio of 1:2500), and the control group of group B. Group (using antibiotics Changyan L...

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Abstract

The invention discloses an application method of an algae extract as an antibiotic substitute in a feed and mainly relates to the field of agricultural biotechnology and feed additives. The components such as omega-3 unsaturated fatty acid and the like contained in the extract of the algae or other plants have relatively strong inhibition or killing effect on the common harmful microorganisms in livestock and poultry and marine lives, and the extract can substitute antibiotics or chemically synthesized antibacterial agents which are often used in the feed. The method can reduce or cancel the use of the antibiotics in the feed, ensure the production performance of animals under the condition of using little or not using the antibiotics, and solve the problems of medicament tolerance, antibiotic dependency, antibiotic residue, secondary infection of the animals and the like. The algae extract is added in the feed, so the health condition of the animals can be improved and the growth of the animals can be promoted. The method is suitable for large-scale industrial production.

Description

technical field [0001] The present invention relates to the discovery and application of antimicrobial activity of algae, specifically discovering antimicrobial active ingredients in algae and other plants, and applying it to antibiotics in feed instead of feed, mainly relating to the fields of agricultural biotechnology and feed additives . Background technique [0002] Since its birth, antibiotics have saved countless lives with their powerful ability to eliminate bacteria, and saved patients with mild or severe infections from suffering. However, excessive use of antibiotics can lead to a series of problems such as increased bacterial resistance. Currently, the overuse of antibiotics is a global medical, social and public health problem. Antibiotics have been used in the feed industry for about 50 years, which has greatly promoted the development of animal husbandry. In order to prevent diseases and improve economic benefits, it is common practice to add antibiotics and...

Claims

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Application Information

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IPC IPC(8): A23K1/17A23K1/14A23K20/195
Inventor 黄赤夫余波卢觉晓郭大波
Owner 湖北汇特生物医药技术有限公司
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