Fermentation brewer grains for partially replacing bean pulp in broiler geese feed

The invention relates to fermentation brewer grains for partially replacing bean pulp in a broiler geese feed. The fermentation medium is prepared from the following raw materials in parts by weight: 2.5-3.5 parts of brewer grains, 0.8-1.2 parts of corn flour, 0.8-1.2 parts of bran, 1.6-2.4 parts of distilled water, 0.016-0.024 part of brown sugar, 0.016-0.024 part of beef extract and 0.008-0.012 part of ammonium sulfate. The fermentation is wide in raw material variety source, sufficient in nutrition and high in digestion utilization, can be used for improving the palatability of the feed, degrading anti-nutrition factors and harmful components in the raw materials and regulating the microecological balance of animal intestines, so that the application range of the brewer grains is enlarged, the culturing cost is reduced, and the foundation is laid for improving the resource utilization of the brewer grains.