| 2019年天津市全株玉米窖贮前营养品质调研 |
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| 引用本文： | 陈龙宾,王丽学,芦娜,陈丽丽,姚大为,张蕾,刘景喜,马毅.2019年天津市全株玉米窖贮前营养品质调研[J].饲料研究,2021(4):79-82. |
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| 作者姓名： | 陈龙宾 王丽学 芦娜 陈丽丽 姚大为 张蕾 刘景喜 马毅 |
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| 作者单位： | 天津市农业科学院畜牧兽医研究所;天津市农业科学院信息研究所 |
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| 基金项目： | 天津市科技计划项目“中小型奶牛场提质增效关键技术集成应用(项目编号:19ZXBTSN00190)”;部门预算项目“紫玉米种养殖及深加工综合利用中试示范”;天津市奶牛产业技术体系—奶牛精细养殖技术岗位(项目编号:ITTCRS2017010);天津市农业科技成果转化项目“高产奶牛粗饲料结构优化技术的转化与示范(项目编号:201901150)”。 |
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| 摘 要： | 为加强青贮玉米贮前品质调控,实现全株玉米青贮品质全面提升,试验在已有青贮后品质调研的基础上开展贮前青贮玉米品质调研工作。试验采集天津市22个奶牛养殖场共55个批次的窖贮前的青贮玉米,进行粗蛋白、中性洗涤纤维、酸性洗涤纤维、淀粉等营养指标分析。结果显示,天津市青贮玉米窖贮前干物质含量21.06%~43.85%、粗蛋白含量6.14%~10.09%、酸性洗涤纤维含量20.92%~30.41%、中性洗涤纤维含量34.38%~40.90%、淀粉含量18.74%~35.85%。根据国标青贮玉米品质分级,青贮玉米品质综合等级为一级和二级的占比58.18%,说明大部分牧场青贮玉米综合品质控制良好,但仍有部分奶牛养殖场在青贮玉米窖贮前品控方面有较大提升空间。
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| 关 键 词： | 天津市 全株玉米 营养成分 品质控制 |
Investigation on the nutritional quality of whole-plant maize before silage in Tianjin in 2019 |
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| CHEN Long-bin,WANG Li-xue,LU Na,CHEN Li-li,YAO Da-wei,ZHANG Lei,LIU Jing-xi,MA Yi.Investigation on the nutritional quality of whole-plant maize before silage in Tianjin in 2019[J].Feed Research,2021(4):79-82. |
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| Authors: | CHEN Long-bin WANG Li-xue LU Na CHEN Li-li YAO Da-wei ZHANG Lei LIU Jing-xi MA Yi |
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| Abstract: | In order to strengthen whole plant maize quality control before silage realizing the overall improvement of wholeplant maize silage quality,the investigation on nutritional quality of whole-plant maize before silage was conducted basing on the survey of whole-plant maize silage quality.The total 55 samples from 22 dairy farms in Tianjin were collected,and the relative indexes of crude protein,neutral detergent fiber,acid detergent fiber,starch and other nutrition indexes were determined.The results showed that the content of dry matter,crude protein,acid detergent fiber,neutral detergent fiber and starch before maize silage were 21.06%~43.85%,6.14%~10.09%,20.92%~30.41%,34.38%~40.90%,18.74%~35.85%.According to national standard of silage maize quality classification,the first and second grades of comprehensive quality of silage maize accounted for 58.18%,indicating that the comprehensive quality control of silage maize in most of dairy farms was good,but there was still a large space for improvement in quality control before whole-plant maize silage in some dairy farms. |
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| Keywords: | Tianjin whole-plant maize nutritional quality quality control |
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