摘要
试验旨在筛选适合河北省种植的优良青贮玉米品种,采用近红外光谱技术检测河北省6个品种青贮玉米基本营养成分、矿物质元素含量、能量及相关指数等,结合农艺性状及生物产量综合评价6个青贮玉米品质。结果显示,各玉米品种间农艺性状无显著差异(P>0.05);各玉米品种间生物产量差异显著(P<0.05),以京科932最高。津贮100、东科301的酸性洗涤纤维(ADF)、中性洗涤纤维(NDF)含量显著低于其他4个品种(P<0.05);各玉米品种间干物质(DM)、粗蛋白质(CP)含量存在显著差异(P<0.05),其中京科932干物质最高,东单1331的CP含量最高;津贮100的淀粉含量最高为32.3%,与其他品种相比差异显著(P<0.05)。各玉米品种间矿物质元素含量差异均不显著(P>0.05)。各玉米品种的总消化养分、产奶净能(NEL)、增重净能(NEG)无显著差异,均以津贮100、东科301最高,且二者每吨饲料产奶量显著高于其他品种(P<0.05)。研究表明,近红外检测技术可满足青贮玉米营养成分快速精准测定。综合营养成分、能值指标分析,津贮100、东科301品质较好,可作为青贮玉米在河北省推广种植。
In order to screen excellent silage maize varieties suitable for planting in Hebei Province,the basic nutrient composition,mineral element content,energy and related index of six varieties of silage maize in Hebei Province were detected by near-infrared spectroscopy technology,and the quality of six varieties of silage maize was comprehensively evaluated in combination with agronomic traits and biological yield.The results showed that there was no significant difference in agronomic traits among varieties(P>0.05).There was significant difference in biomass among varieties(P<0.05),and Jingke 932 was the highest.The ADF and NDF content of Jinzhu 100 and Dongke 301 were significantly lower than those of the other four varieties(P<0.05).There were significant differences in DM and CP content among varieties(P<0.05).The highest starch content of Jinzhu 100 was 32.3%,which was significantly different from other varieties(P<0.05).The difference of mineral element content among varieties was not significant(P>0.05).There was no significant difference in total digestible nutrients,NEL and NEG of silage maize among different varieties,with Jinzhu 100 and Dongke 301 being the highest,and the milk yield per ton of feed was significantly higher than that of other varieties(P<0.05).The experiment indicates that the near-infrared detection technology can meet the requirements of rapid and accurate determination of the nutritional components of silage maize.According to the analysis of comprehensive nutrient composition and emergy index,Jinzhu 100 and Dongke 301 are of good quality and can be popularized and planted as silage maize in Hebei Province.
作者
霍路曼
李艺
杜瑞焕
宋微
周禹
杨硕
王春雷
曹慧慧
HUO Lu-man;LI Yi;DU Rui-huan;SONG Wei;ZHOU Yu;YANG Shuo;WANG Chun-lei;CAO Hui-hui
出处
《饲料研究》
CAS
北大核心
2023年第14期90-93,共4页
Feed Research
基金
河北省二期现代农业产业技术体系草业创新团队建设项目(项目编号:HBCT2018160403)
唐山市人才项目(项目编号:A202006015、A202110026)
2022年河北省农业科技成果转化资金项目
唐山市科技计划项目(项目编号:23150210A)。
关键词
青贮玉米
近红外技术
营养成分
能量指数
营养品质分析
silage maize
near infrared technology
nutritional components
energy index
nutritional quality analysis
