Enzymes are proteins that assist chemical reactions in the body. Although livestock's gut microflora produce some enzymes, they do not all the enzymes in sufficient quantities to hydrolyze NSP, proteins or phytates to enable absorption of all nutrients. Enzyme supplementation improves the quality of feedstuffs and livestock, resulting in higher profit margins. Enzyme addition helps to produce more meat per animal at a much lower cost while improving the overall long-term health of the herd. Vet costs and mortality rates also decline with the use of enzyme supplements in animal feed. Enzymes come from a variety of natural sources, including plant extracts, animals, and microorganisms. Enzymes are widely used by the agricultural, brewing, biofuel, dairy, and rubber industries to boost production and minimize costs.

The cost of providing animal feed to livestock and poultry accounts for 60-70 percent of the total outlay of running a livestock or poultry business. Reducing this expense has been the goal for generations of farmers. Use of enzymes in animal feed make this goal a reality, and modern farmers have achieved phenomenal gains in the efficient and economical production of livestock. The use of enzymes in farm animal nutrition has been an important part of achieving this success while maximizing the health of the animals and minimizing the impact on the environment.

Market pressures and a growing interest in sustainability are driving interest in the use of alternative (local) raw materials in swine diets. Alternatives, especially processed raw materials and co-products, tend to be higher in phytate, fibre and indigestible protein, than the parent grain or oil-seed. This reduces feed efficiency. Therefore, the use of enzymes in swine diets containing alternative raw materials can also deliver benefits for sustainability, as losses are minimized and reduced.

This article summarizes the current application status, mechanism of action, influencing factors, and future development trends of alkaline protease in animal husbandry, aiming to provide scientific basis and technical support for animal husbandry production.

With the rapid development of animal husbandry, the improvement of feed utilization and animal production performance has become a focus of industry attention. Alkaline protease, as an important feed additive, has shown broad application prospects in animal husbandry.

Protease is the general term for a class of enzymes that hydrolyze protein peptide bonds. According to the way it hydrolyzes peptides, it can be divided into two categories and multiple sub-categories.

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.