草业科学2024，Vol.41Issue(6)：1483-1491,9.DOI:10.11829/j.issn.1001-0629.2023-0101
基于主成分和CSQS评价全国不同区域全株玉米青贮质量
Evaluation of whole-plant maize silage quality in different regions of China based on principal component and silage quality grading score analyses
摘要
Abstract
The aim of this study was to investigate the quality of whole-plant maize silage stored in cellars in different regions of China using principal component and whole-plant maize silage quality grading score(CSQS)analyses,and to provide a theoretical basis for the evaluation and production of whole-plant maize silage.The nutrient composition and fermentation quality of whole corn silage in different regions were significantly different(P＜0.05).The CSQS was used to classify 17 provinces into five grades with respect to four nutritional indicators(crude protein,starch,crude fat content,and neutral detergent fiber digestibility30h),and two fermentation indicators(ammonia and lactic acid contents).The whole-plant corn silage quality in different regions was found to descend in the following order:(CSQS=64.42)in the Yellow and Huaihai regions(Shandong,Hebei,Henan,and Anhui);(CSQS=59.72)in the northeast region(Heilongjiang,Jilin,Liaoning,and Inner Mongolia);(CSQS=58.99)in the northwest region(Shaanxi,Shanxi,Qinghai,Gansu,Xinjiang,and Ningxia);(CSQS=52.87)in southwest China(Yunnan and Guizhou);and(CSQS=48.41)in south China(Guangxi).Among these regions,the best quality silage was made in the Yellow and Huaihai regions.Principle component analysis revealed neutral detergent fiber digestibility,crude fiber,and organic acids as the three principal components,with a cumulative contribution of 83.201％,which reflected the comprehensive quality of whole-plant maize silage.关键词
粗饲料/营养成分/发酵指标/青贮质量分级指数/近红外/相关性/主成分分析Key words
coarse feed/nutrient composition/fermentation index/silage quality classification index/near infrared/correlation/principal component analysis引用本文复制引用
陈延斌,陈雅坤,沈旖帆,王建平,赵连生..基于主成分和CSQS评价全国不同区域全株玉米青贮质量[J].草业科学,2024,41(6):1483-1491,9.基金项目
国家重点研发计划项目(2022YFD1301002) （2022YFD1301002）
家畜产业技术体系北京市创新团队项目(BAIC05-2022) （BAIC05-2022）
中国农业科学院科技创新工程项目(ASTIP-IAS07-1) （ASTIP-IAS07-1）
长期监测饲料原料营养成分及体外效价(2024-YWF-ZX-05) （2024-YWF-ZX-05）
新型蛋白饲草的创制与评价项目(首农食品集团自立科技项目) （首农食品集团自立科技项目）
