摘要
青贮饲料是宁夏地区冬季、深秋和初春时节奶牛养殖的主要饲料,其品质优劣对奶牛健康和牛奶产量有很大影响.本研究以宁夏固原市、银川市、中卫市、吴忠市及石嘴山市奶牛场的青贮饲料为研究对象,对其营养指标进行测定分析,结果表明:宁夏各地区青贮饲料CP、ADF、NDF、DM、DMI、DDM、RFV数值各异且无显著差异.采用主成分分析法结合隶属函数加权法对各地区青贮饲料营养品质进行综合评价,中卫市青贮饲料得分最高,排序为中卫市＞银川市＞吴忠市＞石嘴山市＞固原市.建议各地区在实际青贮饲料生产中,根据当地气候条件加强田间管理和青贮技术,从而获得高品质的青贮饲料.
Abstract
Silage is the main feed for dairy cows in winter,late autumn and early spring in Ningxia.Itsquality has great influence on the health and milk yield of dairy cows.In this study,silage wascollected from dairy farms in Guyuan,Yinchuan,Zhongwei,Wuzhong and Shizuishan,To determine and analyze its nutritional index,The results showed that the values of CP,ADF,NDF,DM,DMI,DDM,RFV of silage in different regions of Ningxia were different and had no significant difference.In order to evaluate the nutritional quality of ensilage in different regions,the weight of subordinate function and principal component analysis were used.The ensilage of Zhongwei had the highest score,ranking as Zhongwei＞Yinchuan＞wuzhong＞Shizuishan＞Guyuan.It is suggested that the suitable varieties of silage corn should be selected according to the local climate conditions,and field management and silage technology should be strengthened in order to obtain high quality silage.
基金项目
农业高质量发展和生态保护科技创新示范课题(NGSB-2021-5-05)
宁夏回族自治区自然科学基金(2022AAC03 439)
宁夏回族自治区自然科学基金(2023AAC03421)
2022年宁夏回族自治区科技创新领军人才(2022GKLRLX09)
维普
万方数据