Expression of secondary metabolites in plants and their useful perspective in animal health

In today’s world the usage of useful secondary metabolites derived from plants metabolismspathways plays important roles in pharmaceutical productions and applications. These metabolites suchas Apigenin an anti-infection, anti-viral, anti-carcinogenic derived from Anthemis nobilis plants orBerberine an anti- microorganism, Anti diabetic, anti-inflammatory activity, anti-cancer, LDL cholesterolreducer derived from Berberis aquifolium, are constantly used in pharmaceutics. This paper tries topresent some information about some of these metabolites and the usage of them.