| abstract |
The present invention relates to a livestock feed additive containing xanthophyll and a method for preparing the same, and more specifically, the livestock feed additive of the present invention is characterized in that it contains 100 to 1,000 ppm of xanthophyll. . In addition, the manufacturing method is characterized by extracting xanthophyll, which is present in xanthophyll-rich green-yellow plants such as kale, spinach, radish, turnip leaves, and the like by using fermentation alcohol to remove organic solvents such as methanol and hexanol. Compared with the method of extracting xanthophyll by using the extraction process can be simplified, in particular, the present invention does not require a process for recovering the organic solvent harmful to the human body. In addition, the livestock feed additive of the present invention is a low-cost functional feed additive, by using it to breed laying hens can produce lutein (lutein), zeaxanthin-rich functional eggs. |