Jerusalem artichoke feed additive capable of comprehensively improving production performance of laying hens and egg quality

The invention belongs to the technical field of poultry feed, and discloses a jerusalem artichoke feed additive capable of comprehensively improving the production performance of laying hens and the quality of eggs, and the jerusalem artichoke feed additive is prepared from inulin, fermented jerusalem artichoke leaves and fresh jerusalem artichoke leaves according to a certain proportion. The preparation method comprises the following steps: drying jerusalem artichoke tubers in the sun, crushing the dried jerusalem artichoke tubers by a superfine crushing technology, fermenting jerusalem artichoke leaves by a leavening agent, airing and crushing, crushing fresh jerusalem The jerusalem artichoke feed additive can improve the intestinal environment of chickens and intestinal probiotics, and the main component of the jerusalem artichoke leaves has anti-inflammatory and antibacterial effects, so that the jerusalem artichoke feed additive not only can directly improve the immunity of laying hens, but also can impr