PURPOSE: To obtain a feed containing vinegar, etc., containing slightly volatile vinegar, etc., capable of making domestic animals uniformly take vinegar, etc., slightly causing decomposition of feed even in a half wet state, by adding vinegar or acetic acid and a retaining material thereof to a feed raw material.

CONSTITUTION: An ordinary dried feed is blended with vinegar and/or acetic acid and one or more retaining materials for vinegar and/or acetic acid selected from cyclodextrin, maltosylcyclodextrin, sodium acetate, calcium acetate, dextrin and vinegar lees and a product is adjusted to 0.1W6.7wt.% acetic acid content and ≤45wt.% water content.