1. Keep the balance of amino acids in the forage and stimulate the growth of the animals;2. Improve the meat quality;
3. Increase the nutritive value of forage raw materials which have low amino acid digestibility;
4. Apply to the production low-protein forage;
5. Cut down the cost of raw materials for forage;
6. Decrease the nitrogen content in the excrement and urine of animals so that the release of
ammonia is slowed and the ammonia