摘要
为评价不同生育时期早熟与晚熟燕麦(Avena sativa)的营养价值,本研究应用净碳水化合物−蛋白质体系(cornell net carbohydrate and protein system,CNCPS)对燕麦蛋白质和碳水化合物营养成分进行了细化测定,分析了燕麦各个生育时期各成分的含量。处于灌浆期时两个品种的可利用蛋白比例最高,在开花期时结构性碳水化合物比例达到最大,但在灌浆期时可降解纤维含量最高。比较两个品种各生育时期的组分含量,发现晚熟燕麦中易降解蛋白质含量与早熟燕麦相比更为丰富,而不可降解蛋白质含量则较低,晚熟燕麦的可利用碳水化合物含量也要高于早熟燕麦。综上所述,两个品种燕麦在灌浆期时进行收获具有更高的利用价值,对于牧草饲喂及粗饲料的调制,晚熟燕麦的品质要优于早熟燕麦。
In order to evaluate the nutritional value of early and late maturing oat(Avena sativa)varieties during different growth periods,the cornell net carbohydrate and protein system(CNCPS)was used to measure the protein and carbohydrate nutrients.and the content of these components during each A.sativa growth period was analyzed.The milk-filling stage showed the highest proportion of available protein in both varieties,and the proportion of structural carbohydrate was highest during the flowering stage.However,the degradable fiber content was highest during the milk-filling stage.Comparing the content of each component in each growth stage,it was found that the degradable protein content of late maturing oats was higher than that of early maturing oats,whereas the content of non-degradable protein was lower.The available carbohydrate content of late maturing oats was also higher than that of early maturing oats.It was concluded that the two varieties of oats have higher utilization values when harvested at the filling stage,and the quality of late maturing oats is better than early maturing oats for forage feeding and roughage preparation.
作者
刘宁宁
许庆方
郭刚
陈雷
梁琪
包江志
焦琨明
郝智会
LIU Ningning;XU Qingfang;GUO Gang;CHEN Lei;LIANG Qi;BAO Jiangzhi;JIAO Kunming;HAO Zhihui(College of Grassland Science,Shanxi Agriculture University,Taigu 030801,Shanxi,China;Animal Husbandry and Veterinary Bureau,Lanxian 035200,Shanxi,China;Shanxi Shengtaiyuan Nongmu Limited Company,Yuci 030600,Shanxi,China)
出处
《草业科学》
CAS
CSCD
2020年第10期2049-2056,共8页
Pratacultural Science
基金
国家重点研发计划专项子课题“优质苜蓿、燕麦饲草木质纤维素高效降解技术产品研发”(2017YFD0502103-2)
农业农村部农牧交错带优质青粗饲料资源开发利用技术集成示范项目(16200157)
晋中市饲草微生物资源共享服务平台(P192003)。
