柠条不同生长时期营养价值的研究  

Study on the nutritional value of peashrub at different frowth periods

作　　者：李占丽 马飞 胡美美 李凤学[2] LI Zhanli;MA Fei;HU Meimei;LI Fengxue(Zhangjiakou Animal Disease Prevention and Control Center,Zhangjiakou,Hebei Province 075000 China;Hebei North University,Zhangjiakou,Hebei Province 075000,China)

机构地区：[1]张家口市动物疫病预防控制中心,河北张家口075000 [2]河北北方学院,河北张家口075000

出　　处：《中国饲料》2021年第15期121-123,共3页China Feed

摘　　要：根据河北省坝上地区柠条5月发芽、6月开花、9月落叶的生长情况,采样柠条发芽期、分枝期、开花期、秋后落叶期进行水分、粗纤维、粗蛋白质、粗脂肪、粗灰分、钙和磷的常规分析。结果表明:柠条的营养成分在生长各阶段不同,粗蛋白质含量为发芽期5.80%、分枝期17.84%、开花期13.54%、秋后落叶期9.30%。粗蛋白质含量以分枝期最高,类似花期苜蓿,比秋季禾本科混合牧草粗蛋白质含量蛋白高85.83%;在开花期粗蛋白质也达13.54%,比当地秋季混合禾本科牧草的粗蛋白质高41.04%;秋后落叶期也与秋季禾本科牧草相当。综上,柠条是一种很值得开发利用的饲料林。In accordance with peashrub’s growth rhythm of sprouting in May,blooming in June and leaf falling in September,we sampled peashrub at the germination,branching,flowering and autumn defoliation stages,and took routine analysis on the moisture,crude fiber,crude protein,crude fat,crude ash,calcium and phosphorus of such samples.The results showed that nutritional components of peashrub varied in different growth stages.The crude protein content was 5.80% at the germination stage,17.84% at the branching stage,13.54%at the flowering stage,and 9.30% at the autumn defoliation stage.The crude protein content was highest at the branching stage,similar to that of alfalfa at the flowering stage,and was 85.83% higher than that of mixed gramineous forage grasses in autumn.Its crude protein content at the flowering stage was 13.54%,41.04% higher than that of mixed gramineous forage grasses in autumn.Its protein content at the autumn defoliation stage was comparable to that of the mixed gramineous forage grasses in autumn.This results indicated that peashrub was a worthy forage shrub to be developed and used.

关 键 词：柠条 生长阶段 营养成分 

分 类 号：S816.5[农业科学—饲料科学]