| 摘要 |
The present invention relates to a method for preparing a feed additive using an animal by-product comprising: a step (a) for inserting a pigskin into hot water; a step (b) for adding a softening agent to a liquid in which the pigskin is inserted into hot water to be reacted so as to prepare a softening agent reaction solution; a step (c) for adding an enzyme to the softening agent reaction solution to prepare an enzyme reaction solution; a step (d) for separating and refining the enzyme reaction solution to prepare a separation and refinement liquid; a step (e) for drying and granular powdering the separation and refinement liquid; and a step (f) for mixing a granular powdered and dried object to prepare an additive for livestock feed. Therefore, complex amino acid and unsaturated fatty acid granular powder feed prepared by swelling, softening, enzyme reaction, and granular powdering of a pigskin has excellent effects of fattening livestock and strengthening immunity. |
