Feed enzyme preparation is a type of feed additive that can improve the digestion, utilization, or metabolic efficiency of animals by adding enzyme substances to feed. It is a common feed additive used in the animal husbandry industry for various beneficial purposes.

This standard specifies the terms and definitions, product classifications, requirements, testing methods, inspection regulations, as well as icons, packaging, transportation, and storage of Protease preparations.

Enzyme preparation mixed with feed or fed directly to pigs can greatly improve the conversion, digestion and utilization of nutrients in the feed, significantly reduce or eliminate the side effects of toxic substances and anti-nutrient substances in the feed, and has high economic and environmental benefits.