Feed additive and preparation method thereof

A technology for feed additives and raw materials, applied in the field of feed additives and their preparation, can solve the problems of low protein utilization rate, resource waste, environmental pollution, etc., and achieve the effects of low preparation cost, increased spleen index, and simple and easy preparation method.

Active Publication Date: 2022-03-08
OCEAN UNIV OF CHINA
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The discarded shrimp heads and shells in the shrimp processing industry are called shrimp by-products, which are rich in nutrients such as chitin, protein, phospholipids and astaxanthin However, when it is directly used as feed, there are problems such as high price and low protein utilization rate, so it is difficult to use as bulk feed, and directly discarding it will cause environmental pollution, and it is a waste of resources

Method used

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  • Feed additive and preparation method thereof
  • Feed additive and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Example 1 Preparation of Feed Additives

[0027] (1) Mix 15 kg of shrimp by-products (shrimp head of Penaeus vannamei, 16-20 meshes), 8 kg of bran (wheat bran), add 23 kg of water, and use it as a solid-state fermentation substrate for later use;

[0028] (2) After the solid-state fermentation substrate was sterilized (sterilized at 115°C for 30 min), 4 kg (1×10 9 CFU / g), mixed evenly, and fermented at room temperature for 50 h to obtain fermented product (high water content);

[0029] Described Bacillus cereus is Bacillus cereus OKF01 ( Bacillus cereus OKF01), screened and preserved in the laboratory of the inventor of the present invention, screened from the deep sea mud of the East China Sea and can grow with Antarctic krill meal as the only carbon and nitrogen source, recorded in the following open documents: Jianan Sun, et al., Screening of Microorganisms from deep-sea mud for Antarctic krill ( Euphausia superba ) fermentation and evaluation of the bioactive ...

Embodiment 2

[0031] Example 2 Preparation of Feed Additives

[0032] (1) Mix 10 kg of shrimp shell powder (shrimp shell of Penaeus vannamei, below 8 mesh), 12 kg of bran (wheat bran), add 22 kg of water, and use it as a solid-state fermentation substrate for later use;

[0033] (2) After the solid-state fermentation substrate was sterilized (sterilized at 115 °C for 30 min), 3 kg (1×10 9 CFU / g), mixed evenly, and fermented at room temperature for 60 h to obtain fermented product (high water content);

[0034] (3) Add 2 kg of starch to the above fermented product, mix well, and dry (blast drying, drying temperature 50 °C, drying time 10 h) to obtain the feed additive.

Embodiment 3

[0035] Example 3 Preparation of Feed Additives

[0036] (1) Mix 12 kg of shrimp by-products (a mixture of shrimp heads and shells of Penaeus vannamei, 12-16 meshes), 10 kg of bran (wheat bran), and add 25 kg of water as a solid-state fermentation substrate ,spare;

[0037] (2) After the solid-state fermentation substrate was sterilized (sterilized at 115 °C for 30 min), 3 kg (1×10 9 CFU / g), mixed evenly, and fermented at room temperature for 55 h to obtain fermented product (high water content);

[0038] (3) Add 2 kg of starch to the above-mentioned fermented product, mix well, and dry (blast drying, drying temperature 55 ℃, drying time 12 h) to obtain the feed additive.

[0039] The content of crude protein and amino acid nitrogen after fermentation was determined by Kjeldahl method and formaldehyde titration. The results: the nitrogen content of crude protein after fermentation was 54.4 mg / g·N, and the amino acid nitrogen was 7.35 mg / g·N.

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Abstract

The invention discloses a feed additive which is prepared from the following raw materials: 10-15 parts of shrimp byproducts, 8-12 parts of bran and 1-2 parts of starch. The preparation method comprises the following steps: (1) mixing the shrimp by-product and bran, and adding water to serve as a solid-state fermentation substrate; (2) after sterilization, adding bacillus cereus, uniformly mixing, and fermenting at normal temperature to obtain a fermented product; and (3) adding starch, uniformly mixing, and drying to obtain the feed additive. The feed additive disclosed by the invention can be used for preparing a feed with the effects of reducing the body fat rate, increasing the spleen index and/or improving the proportion of probiotic groups in intestinal tracts. According to the invention, a developed enzyme system of bacillus cereus is utilized to convert the protein which is difficult to utilize of the shrimp by-product into the micromolecular protein which is easier to absorb, the shrimp by-product is converted into the green and pure natural fermented feed additive from a low-quality feed, and meanwhile, the fermented feed additive has life benefiting property. The preparation method is simple and easy to implement, low in preparation cost and suitable for large-scale industrial production.

Description

technical field [0001] The invention relates to a feed additive and a preparation method thereof, belonging to the technical field of feed additives. Background technique [0002] Feed additives refer to small or trace substances added during feed production, processing and use, which are used in small amounts but have significant effects in feed. Feed additive is an inevitable raw material used in the modern feed industry. It has obvious effects on strengthening the nutritional value of basic feed, improving animal production performance, ensuring animal health, saving feed cost, and improving animal product quality. [0003] At present, commercial feed containing growth-promoting drug feed additives (except traditional Chinese medicine) has been required to stop production and use in our country. , New feed additives that improve disease resistance are of great significance. [0004] The discarded shrimp heads and shells in the shrimp processing industry are called shrim...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23K10/26A23K10/22A23K10/37A23K20/163A23K10/12
CPCA23K10/26A23K10/22A23K10/37A23K20/163A23K10/12Y02P60/87
Inventor 毛相朝孙建安潘朝阳胡泽林
Owner OCEAN UNIV OF CHINA
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