Preparation method and application of laying hen feed

Abstract

The invention discloses a preparation method of a laying hen feed. The preparation method comprises the following steps of (1) material pretreatment: separately crushing corns and soy meals, mixing the crushed corns and soy meals, and adding an obtained raw material A mixture in a Chinese medicinal material mixed solution for soaking to obtain a pretreated A material; (2) reactivation of a fermentation strain: mixing active dry yeast, glucoamylase, acidic protease, cellulose, xylanase, water and white sugar, and performing insulation and reactivation for 30min at 30-35 DEG C to obtain the fermentation strain; (3) fermentation: mixing the pretreated material A and the fermentation strain, performing fermentation for 36h at 40-45 DEG C, performing natural cooling to a room temperature, and performing drying to obtain a fermented material A; and (4) burdening: stirring and mixing the fermented material A, stone powder, an additive and vegetable oil. Meanwhile, the invention also disclosesapplication of the laying hen feed. By adopting the laying hen feed provided by the invention, the laying rate of the laying hen after being fed is high, and the feed-egg ratio is low.

Description

technical field [0001] The invention belongs to the technical field of animal feed, and in particular relates to a preparation method and application of laying hen feed. Background technique [0002] Chicken is a food commonly used by people, and it is also one of the important nutrients. In order to improve the production performance of laying hens and prevent bacterial diseases, the early method adopted was to add some antibiotics, such as aureomycin, oxytetracycline, bacitracin zinc, etc., to the feed of laying hens. This method is simple and can achieve the desired effect, but it has negative effects: first, the antibiotics that have not been metabolized accumulate in the chicken, causing the antibiotics in the chicken to exceed the standard, or even seriously exceed the standard, endangering the health of consumers; second, the long-term use of antibiotics Feed additives reduce the immune function of laying hens, leading to drug resistance of bacteria, increasing the r...

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Problems solved by technology

Among these additives, organic acids can lower the pH value of the intestinal tract, inhibit the growth of harmful bacteria, and promote the proliferation of beneficial bacteria. However, due to their high production costs and corrosiveness to production equipment and troughs, their application is limited. ;Enzyme preparations can improve feed utilization, reduce the side effects of non-starch polysaccharides and other anti-nutritional factors, and reduce the incidence of nutritional diarrhea, but there are problems such as unstable enzyme activity and inaccurate effects; oligosaccharides can enhance animal immunity , to promote the proliferation of beneficial bacteria in the intestinal tract of animals and to directly adhere to the multiple activities of harmful bacteria, but oligosaccharides have strict requirements on the physiological functions of animals, the stage of animals, and the physiological state of animals. The scope of use of sugars; the research on Chinese herbal medicine additives has a long history, but the effects of different prescriptions vary greatly, the amount of addition is large, and the cost is high; microecological preparations help the growth of probiotics in laying hens, antagonize the reproduction of pathogenic bacteria, and promote feed digestion Absorb, provide nutrition, enhance animal immune function, etc. However, the strains selected by most probiotics have poor heat resistance and cannot tolerate gastric acid and bile salts, which seriously affects the use of probiotics; antimicrobial peptides are biological A biologically active small molecular polypeptide induced by induction has broad-spectrum antibacterial activity and has a killing effect on bacteria, viruses, fungi, pathogens and cancer cells, but it will also destroy the normal flora of organisms

[0004] Chinese patent CN 106912742 A discloses a feed for promoting the growth of broiler chickens, which is to ferment corn, soybean meal, bone meal, etc., and then mix it with the remaining ingredients such as Chinese medicine extracts, mainly relying on the ingredients of Chinese medicinal materials to improve the digestion and absorption rate of broiler chickens for feed, and improve The anti-bacterial ability of broilers; Chinese patent CN 102028118 B discloses a traditional Chinese medicine additive for the production of pollution-free eggs. Corn starch and Chinese medicinal materials are fermented together, and the fermentation time is long

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