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四川桤木是长江流域的多功能阔叶树种,已成为我国长江防护林工程、农用林与国家造林项目的重要造林树种。从对桤木叶已进行分析的37种营养成分中得知:粗蛋白占19.75％,粗脂肪占6.81％,所测16种氨基酸的总量高达15.3075％,并且富含维生素与多种微量元素。其营养价值均较当前使用的饲料添加剂槐叶粉与苜蓿叶粉高,并可代替杜仲叶粉饲养鳗鱼。桤木叶含N、P量分别为3.176％和0.223％,又系沤肥的好材料。发展桤木可满足材用、饲料与农用之需,深化研究,可提炼生物产品。
Alder is a multi-functional broad-leaved tree species in the Yangtze River basin, has become China’s Yangtze River shelter-forest project, agricultural afforestation and afforestation project important afforestation species. From the analysis of 37 kinds of alder leaves have been analyzed in 37 kinds of nutrients: crude protein accounted for 19.75%, crude fat accounted for 6.81%, measured 16 kinds of amino acids up to 15.3075%, and is rich in vitamins and trace elements . Its nutritional value is higher than the current use of feed additives Sophora japonica and alfalfa leaf powder, and can replace eucalyptus leaf eel farming. Alder leaves contain N, P amount of 3.176% and 0.223%, respectively, and Department of fertilizer is a good material. The development of Alder can meet the material, feed and agricultural needs, deepen the study, can be refined biological products.