Feed enzyme has no harmful effect against environment as it is protein safely without any side effects. That’s why it is also widely called “green feed additives” and its application has been favored more and more in the world.

Amylase and protease are two of the enzymes popularly used to improve animal’s digestive towards solid feed and crude protein. It to some extent increases the use of ammonia and reduces production of feces, therefore the pollution from NH3 and H2S is reduced.

What’s more, people may reverse some waste proteins, such as feathers, into feed protein with the application of protease. Enzymes, especially those go against antinutritional factors, like phytase and beta-glucanase, are very important for environmental protection.

For example, most of phosphorus in feed from vegetable resource come in phytic acid or phytic salt, which takes about 60% to 80% of total phosphorus. And the phosphorus radical from phytic acid could be hydrolyzed by phytase.

For phytic salt, this is a substance very difficult to absorb and it is also one kind of antinutritional factors. Phytase can resolve the phytic salt into inorganic phosphorus and carbon hydrates which animal can make use for living.

This procedure could increase the use of feed to about 10%, and reduce the adding of inorganic phosphorus and mineral substance like calcium for more than 70%. Meanwhile it decreases transportation of phosphorus from feces to environment.

In over all, enzymes are very interesting additives to use in feed industry, it helps improving parameters of animals in a environment friendly way.