动物营养学报2018，Vol.30Issue(3)：1063-1072,10.DOI:10.3969/j.issn.1006-267x.2018.03.031
大麦秸秆:康奈尔净碳水化合物与蛋白质体系评定组分及近红外光谱分析技术预测营养价值
Barley Straw: Evaluation of Components in Cornell Net Carbohydrate and Protein System and Prediction of Nutritional Value by Near Infra-Red Spectrum
摘要
Abstract
This study aimed at establishing a database of nutritional value of barley straw based on the Cornell net carbohydrate and protein system (CNCPS),and founding nutritional value prediction models with near infrared spectrum (NIRS).A total of 96 barley straw samples were collected from 13 counties and cities in Gansu province.Contents of dry matter (DM),crude ash (Ash),crude protein (CP),ether extract (EE),neutral detergent fiber (NDF),acid detergent fiber (ADF),acid detergent lignin (ADL),neutral detergent insoluble protein (NDIP),acid detergent insoluble protein (ADIP),soluble protein (SP),calcium (Ca) and phosphorus (P) were determined.Then the carbohydrate (CHO) and protein components were calculated by CNCPS.NIRS models were evaluated using 76 samples and 20 samples as calibration and validation database,respectively.The results showed as follows:1) contents of DM,Ash,CP,EE,NDF,ADF,ADL,NDIP,ADIP,SP,Ca and P of barley straw were 95.21％,7.38％,3.51％,5.68％,70.95％,45.16％,5.17％,1.02％,0.57％,1.65％,0.71％ and 0.09％,respectively.2) Contents of CHO,non fiber carbohydrates (NFC),soluble fiber (CB2),digestible fiber (CB3) and indigestible fiber (CC) of barley straw of CHO components defined by CNCPS were 83.42％,12.47％,12.47％,58.55％ and 12.40％,respectively.Contents of soluble true protein (PA2),insoluble true protein (PB1),fiber conjugated protein (PB2) and undegradable protein (PC) of barley of protein components defined by CNCPS were 1.65％,1.23％,0.45％ and 0.57％,respectively.3) Cross validation determinant coefficient (1-VR)＞0.8,and the verification decision coefficient (RSQv) ＞0.84 for the model parameters of OM,CP,NDF,ADF,CHO,NFC and CB2,which suggested that the models can be used for actual analysis.Model parameters of OM,CP,NDF,ADF,CHO,NFC and CB2 were SNV and detrend 2,4,4,1;SNV and detrend 2,4,4,1;SNV and detrend 1,4,4,1;None 1,4,4,1;SNV and detrend 2,4,4,1;None 2,4,4,1;None 2,4,4,1;respectively.Other models did not reach the practical application level.In conclusion,the study provide chemical analysis data for the application of barley straw in diet for ruminants,andestablish models for prediction of main nutrients by NIRS.关键词
大麦秸秆/康奈尔净碳水化合物与蛋白质体系/近红外光谱分析技术/营养价值Key words
barley straw/Cornell net carbohydrate and protein system/near infra-red spectrum/nutritional value分类
农业科技引用本文复制引用
李国彰,李发弟,翁秀秀,喻笑男,王志兰,马万浩,邓颖,董春晓,闫佰鹏,兰贵生,李飞..大麦秸秆:康奈尔净碳水化合物与蛋白质体系评定组分及近红外光谱分析技术预测营养价值[J].动物营养学报,2018,30(3):1063-1072,10.基金项目
公益性行业(农业)科研专项-北方农作物秸秆饲用化利用技术研究与示范(201503134) （农业）
兰州大学中央高校基本科研业务费专项资金资助(lzujbky-2017-48) （lzujbky-2017-48）
长江学者和创新团队发展计划资助(IRT13019) （IRT13019）
