Microecological feed additive and preparation method thereof
A micro-ecological feed and feed additive technology, which is applied in the molding or processing of animal feed, animal feed, animal feed, etc., can solve the problems of product quality that is difficult to meet standards, low content of effective metabolites, and poor control of various conditions. , to achieve the effect of good quality, reducing the degree of bacterial contamination and improving animal production performance
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Embodiment 1
[0039] A micro-ecological feed additive is obtained by compounding spray-dried yeast metabolites and plantaractobacillus metabolites in a mass ratio of 1:1.
[0040] A preparation method of micro-ecological feed additive, comprising the following steps
[0041] A, preparation of yeast metabolites: (1) Inoculate the preserved Saccharomyces cerevisiae strains into YPD slant medium, and culture them statically at 28~30°C for 48 hours to obtain revived strains; (2) Inoculate the revived yeast strains into liquid YPD (3) Inoculate the first-grade seed liquid into the screened aerobic fermentation medium in an amount of 4-10%, and ferment aerobically at 28-30°C for 24-48 hours to obtain the second-grade seed liquid (4) liquid anaerobic fermentation: inoculate the secondary seed liquid into the liquid anaerobic fermentation medium with an inoculum size of 20%, and anaerobic fermentation at 20° C. for 24 hours to obtain anaerobic fermentation products; (5) cell autolysis: papaya The ...
Embodiment 2
[0045] A micro-ecological feed additive is obtained by compounding spray-dried yeast metabolites and plantaractobacillus metabolites in a mass ratio of 1:2.
[0046] A preparation method of a micro-ecological feed additive, the preparation method comprises the following steps
[0047] A: Preparation of yeast metabolites: same as in Example 1
[0048] B: Preparation of lactic acid bacteria metabolites: same as Example 1
[0049] C: Preparation of complex metabolites: compound the spray-dried yeast metabolites and lactic acid bacteria metabolites in a mass ratio of 1:2.
Embodiment 3
[0051] A micro-ecological feed additive, which is composed of yeast metabolites and plant
[0052] The metabolites of Lactobacillus are compounded according to the mass ratio of 2:1.
[0053] A preparation method of a micro-ecological feed additive, the preparation method comprises the following steps
[0054] A: Preparation of yeast metabolites: same as in Example 1
[0055] B: Preparation of lactic acid bacteria metabolites: same as Example 1
[0056] C: Preparation of compound metabolites: the yeast metabolites and lactic acid bacteria metabolites were combined by spray drying
[0057] 2:1 mass ratio for compounding.
[0058] Product efficacy verification
[0059] 1. Broiler chicken feeding experiment program
[0060] 180 1-day-old AA broiler chickens were selected, and the test was randomly divided into 6 groups, with 3 repetitions in each group, and 10 chickens in each repetition. Dried different metabolite products were fed to broilers in an amount of 0.6% (mass ra...
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