Premix is a feed intermediate made by uniformly mixing a variety of trace components (including various trace mineral elements, various vitamins, synthetic amino acids, certain drugs and other additives) with diluents or carriers as required. The product is the core part of full-price compound feed.

Premix feed refers to a mixture that is uniformly stirred by one or more additive raw materials (or monomers) and a carrier or diluent (diluent, thinner), also known as additive premix. The purpose is to facilitate trace amounts of raw materials. Evenly dispersed in a large number of compound feeds. Premixed feeds cannot be fed directly to animals.