Research Progress of Main Active Ingredients of Paulownia and Its Application as Feed for Ruminants
Paulownia is an important fast-growing afforestation tree species,can be used as landscape forest,shelter forest,planted more widely.Paulownia is a kind of tree with a wide range of uses.It is used as wood for furniture and musical instruments,as raw material for making cellulose,and its flower and fruit can be used as medicine.Paulownia leaves are rich in nutrients,the basic components of which are similar to alfalfa.The chemical composition of extracts from paulownia different part(leave,flower,fruit)is mostly flavonoids,lignans,phenylpropano ids,terpenoids,polysaccharides and iridoids,which exhibit various function,such as antioxidant,antinflammatory,ant ibacterial,antiviral,anticancer,ypoglycemic and hypolipidemic activities.Paulownia leaves and the silage lowered the concentration of ammonia,modulated the VFA profile in the ruminal fluid,and decreased methane productionhave been used in ruminants.Paulownia flowers are more commonly used in poultry,but there are few reports on ruminants.The flowers and fruits of paulownia have broad application prospects because of their active components.This article reviews the main nutritional components,active ingredients,and feeding experiments of paulownia,providing reference for further research and exploration.
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