四倍体刺槐不同生长时期和部位的叶片的饲料营养价值分析  

Analysis of Fodder Nutritive Value in the Leaves Harvested at Different Growing Stages and Parts for Tetraploidy Robinia pseudoacacia

作　　者：李云[1] 张国君[1] 路超[1] 刘书文 

机构地区：[1]北京林业大学林木花卉遗传育种教育部重点实验室,北京100083 [2]甘肃省天水秦州区林业局,甘肃天水741000

出　　处：《林业科学研究》2006年第5期580-584,共5页Forest Research

基　　金：科技部农业科技成果转化资金项目(03EFN216700307);国家林业局林业科学技术推广项目(2003-5-2)

摘　　要：对廊坊地区饲料型四倍体刺槐不同生长时期及不同部位叶片的粗蛋白质、Ca、P等常规营养成分和不同生长时期叶片的氨基酸组分的分析结果表明:饲料型四倍体刺槐叶片不同生长时期的营养成分中,粗蛋白含量在生长时期极显著高于叶片变色期,中性洗涤纤维在7月15日显著低于10月5日;7月15日不同部位叶片的营养成分中,上部叶片的粗蛋白、粗脂肪及P含量均高于下部叶片,而粗纤维、粗灰分及Ca含量则是下部叶片高于上部叶片;不同生长时期叶片均含18种氨基酸,其含量随时间的推移呈下降趋势,且在生长时期较苜蓿草粉高或与之相当。The contents of crude protein, calcium, gross phosphorus and other general ingredients at different stages and parts and amino acids at different stages in the leaves of tetraploidy Robinia pseudoacacia for fodder, from Langfang of Hebei province, were determined. The results indicated that the content of crude protein at growing stages was higher significantly than those at color changing stage in the leaves of tetraploidy Robinia pseudoacacia for fodder, the content of neutral detergent fiber on July 15 was lower than that on October 5 ; and the contents of crude protein, ether extract, gross phosphorus in top part were better than those in lower part in the leaves of tetraploidy Robinia pseudoacacia for fodder, but the contents ＇of crude fiber, crude ash, calcium were in opposition; and there were eighteen amino acids in the leaves of tetraploidy Robinia pseudoacacia for fodder, moreover, their contents were descending gradually along with the time, and its nutrition was as well as or higher than Medicago sativa at growing stages.

关 键 词：四倍体刺槐 叶片营养 生长时期 部位 

分 类 号：S792.27[农业科学—林木遗传育种]