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Compound feed additive and preparation method thereof

A compound feed and additive technology, applied in animal feed, animal feed, bacteria used in food preparation, etc., can solve the unknown problems of compound probiotics and Chinese herbal polysaccharides, etc., and achieve large-scale industrial production and strong operability , Improve the effect of intestinal morphology

Inactive Publication Date: 2019-02-15
FOSHAN UNIVERSITY
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, there are few reports on the effects of the combined use of compound probiotics and Chinese herbal polysaccharides on aquatic animals. It is not yet known whether the combined use of compound probiotics and Chinese herbal polysaccharides in feed additives will produce antagonistic effects or bring more complete beneficial effects

Method used

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  • Compound feed additive and preparation method thereof
  • Compound feed additive and preparation method thereof
  • Compound feed additive and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] A compound feed additive, comprising compound probiotics and Yupingfeng polysaccharide, the ratio of said compound probiotics and Yupingfeng polysaccharide is 1:1 based on the mass parts of raw materials, and the compound probiotics are composed of lactic acid bacteria, bifidobacteria and spores of subtilis. The ratio of bacilli according to the mass of raw materials is 1:1:1.

[0023] Preparation:

[0024] 1) Take the Yupingfeng medicinal residue and soak it in deionized water for 30 minutes at a material-to-liquid ratio of 1:14, then place it in a water bath at 100°C for reflux extraction for 1.2 hours, repeat twice and combine the filtrate. After the filtrate is cooled, repeat vacuum filtration twice Second, reheat and concentrate to 0.4 times the original volume, and cool to obtain a concentrated solution;

[0025] 2) Add 98% alcohol to the concentrated solution, stir, stand at 3°C ​​for 12 hours, filter to obtain the precipitate, and dry the precipitate to obtain powdery...

Embodiment 2

[0028] Example 2: Related tests

[0029] 1. Test materials

[0030] The control group was a 100% basal feed, and its composition and nutrients are shown in Table 1 below. In the test group, 0.8% of the finished product of Example 1 was added to the basic feed.

[0031] Table 1 Basic feed composition and nutrients (air-dried basis)

[0032]

[0033] 2. Test management

[0034] A total of 120 healthy snakehead snakeheads with an average weight of (23±0.15) g were randomly divided into two groups, namely the control group and the test group, with 3 replicates in each group and 20 fish in each replicate. The pre-test period is 7 days and the official period is 56 days. During the test period, oxygenation is maintained for 24 hours, the water temperature is 28±0.5℃, and the feeding is fixed (8:00 and 16:00). The daily feeding amount is 2 to 4% of the total body weight. Adjust the feeding amount appropriately for the feeding situation.

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Abstract

The invention discloses a compound feed additive and a preparation method thereof. The compound feed additive comprises the following raw materials in parts by mass: compound probiotics and Yupingfeng(composed of divaricate saposhnikovia root, milkvetch root and largehead atractylodes rhizome) polysaccharides, with a ratio of 1: 1. The compound probiotics is prepared by mixing the following raw materials in parts by mass: lactic acid bacteria, Bacillus bifidus and Bacillus subtilis, with a ratio of 1: 1: 1. By compounding the Yupingfeng polysaccharides with the specific compound probiotics with limited compounding ratios, the compound feed additive has an effect of balancing the intestinal flora in aquatic animals, thereby effectively enhancing the digestion and absorption of nutrient components of the aquatic animals, improving the intestinal morphological structure of the aquatic animals and promoting the growth and development of the aquatic animals while effectively improving theactivity of immune cells of the aquatic animals, thus further improving the immunity and resistance of the aquatic animals. The preparation method is simple in process, strong in operability and conducive to large-scale industrial production.

Description

Technical field [0001] The invention relates to the field of feed, in particular to a feed additive and a preparation method thereof. Background technique [0002] Probiotics are a type of active microorganisms that are beneficial to the host, and can produce definite health effects to improve the host's microecological balance and play a beneficial role in general. The types of probiotics used in aquaculture at home and abroad mainly include Lactobacillus, Bacillus, Bifidobacterium, Yeast and Enterococcus. Probiotics have high stability in the acidic environment of animal intestines. They can inhibit the growth of harmful bacteria and improve the body's immunity. At the same time, they participate in the body's metabolism, provide nutrients, and promote animal growth and development. They have been widely used in aquaculture. use. [0003] As one of the main components of Chinese herbal medicine active substances, Chinese herbal medicine polysaccharides have also received extens...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23K20/163A23K10/18A23K50/80
CPCA23K10/18A23K20/163A23K50/80A23V2400/51
Inventor 谢佳芳刘华杨映于辉韦金兑柯文杰
Owner FOSHAN UNIVERSITY
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