The freshwater aquaculture of the pearl oyster is developing rapidly, but every year a large numberof pearl mussel meat resource has been abandoned, which cause a serious waste of resource. In the sametime, the lack of zinc element is also frequent in our country, especially in young children and teenagers.Therefore we should develop a new zinc supplements. Studies have shown that polypeptide can improvethe absorption of zinc.
Firstly, this research through the single factor and response surface experim...