Laying hen feed capable of increasing yolk chroma and realizing accurate proportioning

Abstract

The invention discloses a laying hen feed capable of increasing yolk chromaticity and realizing accurate proportioning, and belongs to the technical field of biological fermentation feed production. Amonascus pigment material in the laying hen feed is produced from monascus through a liquid fermentation method, the chemical structure and the content stability of monascus yellow pigment and monascus orange pigment in the monascus are protected through a series of key technologies and measures. The monascus pigment material can be added into the feed according to a certain proportion after color value measurement, wherein the color value of the monascus yellow pigment in the feed is 0.4-10 KU / Kg, the color value of the monascus orange pigment is 0.4-12 KU / Kg, and the color value of monascusred pigment is 1-15 KU / Kg. The feed provided by the invention can improve the chromaticity value of egg yolk (raw yolk and cooked yolk) of eggs of laying hens fed at a certain growth stage. The invention discloses the effect of the types and the adding amounts of the monascus pigment on improving quality of eggs, accurate ingredient proportioning of the laying hen feed can be realized, and the effect of stably and effectively improving the yolk chromaticity of laying hens is achieved.

Description

technical field [0001] The invention relates to a laying hen feed capable of increasing egg yolk and capable of realizing precise ingredients, and belongs to the technical field of biological fermentation feed production. Background technique [0002] Eggs are the most common nutritious food rich in protein, and there is a huge demand at home and abroad. The color depth of egg shells and yolks is one of the key points that consumers pay attention to. The yolk color is formed by the deposition of fat-soluble pigments into the yolk during egg formation. Since modern chicken farms adopt a centralized feeding mode, the sources of natural pigments in laying hen feed mainly come from two aspects, one is from the feed raw materials themselves, such as corn; the other is from the added pigments. Sometimes considering cost and other aspects, there may be insufficient natural pigments in the feed of laying hens, and the laying hens cannot obtain enough natural pigments, which will c...

AI Technical Summary

Problems solved by technology

The additive type is that the red yeast rice produced or purchased by the researcher is added to the feed; the fermented feed type is that the red yeast rice seeds are inserted into the fermentation raw materials for solid-state fermentation, but due to the way of feed fermentation and the feed raw materials characteristics, not very suitable for solid-state fermentation to produce pigments

[0008] (2) None of them clearly mentioned the types of pigments in red yeast rice products in feed:

[0009] In the existing reports, whether it is self-made or purchased red yeast rice products, most of them only mentioned the use of red yeast rice or red yeast rice pigments in general, and did not explicitly mention the type of pigment in the red yeast rice products in the feed.

[0010] (3) Lack of qualitative and quantitative methods for pigments:

[0016] (5) Some red yeast pigments are not stable and changeable:

[0018] (6) Improper control of monascus pigment in feed will affect feed users' judgment on feed quality

[0021] For example, when using homemade or purchased red yeast rice in feed, the problem is that the red yeast rice produced by solid-state fermentation method, due to the strain, production raw materials, production process and other reasons, the pigment ratio of the three shades in the red yeast rice product It is not stable, and the molecular structure of the pigment may change in an unfavorable environment; the pigment content will also decay with the storage time, that is, the pigment content of the same red yeast rice product will decrease after being stored for different times, resulting in poor use effect

[0022] The above problems will eventually lead to the following: at present, it is impossible to accurately and stably control the type, content, and dosage of red yeast rice pigments in the feed, and it is impossible to obtain layer feeds with precise ingredients, so that it is impossible to stably and effectively improve egg production. chicken egg yolk

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