About phytase feed additive?

The domestic demand for enzyme preparation is not large, which provinces generally have a greater demand? What type of phytase feed additive is needed on the market now? -the usage is still quite large. In the enzyme preparation, the application of phytase is more mature, where the feed market is big, where the phytase market is big! The addition of phytase is now very common. Yes, the technology of phytase is quite mature, but somehow the price of imported phytase is so much higher than that of domestic ones. The domestic ones are only about 10 yuan per kilogram, while the imported ones are 50 or 60 yuan. Domestic products range from seven or eight yuan per kilogram to fifteen or sixteen yuan.