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白洋淀菹草不同生长期生物量及营养价值变化动态

标题: 白洋淀菹草不同生长期生物量及营养价值变化动态
英文标题: Biomass and dynamic changes of nutritive value over different growth periods of Potamogeton crispus in Baiyangdian Lake
作者: 任文君,吴亦红,田在锋,刘霞,宁国辉,谢建治,王华
英文作者: REN Wen-jun1,WU Yi-hong2,TIAN Zai-feng2,LIU Xia1,NING Guo-hui1,XIE Jian-zhi1,WANG Hua3(1.College of Resources and Environmental Sciences,Agricultural University of Hebei,Baoding 071001,China,2.Hebei Research Academy of Environmental Sciences,Shijiazhuang 050000,3.Library of Hebei North University,Zhangjiakou 075000,China)
出版时间: 2012-01-01
机构: 河北农业大学
关键词: 菹草,白洋淀,生物量,营养价值
英文关键词: Potamogeton crispus,Baiyangdian Lake,biomass,nutritive value
刊名: 草业学报
英文刊名: Acta Prataculturae Sinica
ISSN: 1004-5759
卷号: 001
基金: ^A国家水体污染控制与治理科技重大专项^B2008ZX07209-008-005,2008ZX07209-007-05^D1%^A国家科技支撑计划项目^B2007BAD87B04^D2
页码: 24-33
分类号: S548%S963.22
摘要: 本研究在白洋淀王家寨淀区选取5个采样点,分别于菹草返青期、指数生长期、芽殖体发生期和植株衰亡期,对各采样点的菹草植株进行取样、监测并记录各采样点菹草的生物量变化,并对菹草植株各项营养指标含量进行分析.结果表明,菹草指数生长期,生物量增大,粗蛋白、粗脂肪、总磷以及β-胡萝卜素均达到最大值,而粗纤维、粗灰分、钙以及Vc含量在3-6月的监测中呈现逐渐上升趋势,5月初是白洋淀采集菹草的最佳季节.不同采样点,菹草的营养指标含量存在差异.整个菹草生长期,各采样点菹草粗蛋白含量在100g/kg以上,粗纤维含量低于155g/kg,粗脂肪含量在12g/kg以上,粗灰分含量在140g/kg以上,钙和磷含量均在3.0g/kg以上,维生素C含量在140mg/kg以上,β-胡萝卜素含量在310mg/kg以上,营养价值较其他水生饲料高,是草鱼、畜禽理想的青饲料.菹草中的类胡萝卜素等成分可提高蛋品的保健价值,应用前景十分广阔.
英文摘要: Five sites were sampled to analyze the biomass and nutritive value of Potamogeton crispus at the stages of greening,exponential growth,bud emergence and decline.In the exponential growth phase,biomass increased: the contents of crude protein,crude fat,total P and β-carotene were the largest.From March to June,the contents of crude fiber,crude ash,calcium and Vc showed a gradually rising trend.May was the best time for harvesting P.crispus.The nutritive value contents of P.crispus were different at different...