| 饲用玉米生产性能与营养价值评定 |
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| 引用本文： | 吴欣明,王运琦,董宽虎,刘建宁.饲用玉米生产性能与营养价值评定[J].中国草地学报,2006,28(3):66-70. |
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| 作者姓名： | 吴欣明 王运琦 董宽虎 刘建宁 |
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| 作者单位： | 1. 山西省农科院畜牧兽医研究所,山西,太原,030032
2. 山西农业大学动物科技学院,山西,太谷,030801 |
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| 摘 要： | 对五个饲用玉米品种不同生育期、不同施肥量的生产性能以及主要营养物质变化情况进行了研究，结果表明：（1）经过物候期观测，东陵白和中原单32为早熟品种，而科多8号、科青1号、科多4号为晚熟品种；（2）不同施肥水平对各品种间产量差异显著（p〈0．05），450kg／hm^2和300kg／hm^2的施氮水平与150kg／hm^2和0kg／hm^2（对照组）差异显著，茎叶比变化显著，以中原单32和东陵白变化幅度较大，与其它3个品种差异显著；（3）随着生育期的推进，各品种的CP、Ca、P、CA含量显著下降（p〈0．05），NDF、ADF、OM含量则显著上升（p〈0．05）。各品种在同一生育期内营养物质含量差异不显著，与其它营养物质不同的是WSC含量在抽穗期显著（p〈0．05）高于拔节期和乳熟期。
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| 关 键 词： | 饲用玉米 品种 营养价值 生产性能 比较 |
| 文章编号： | 1673-5021（2006）03-0066-05 |
| 收稿时间： | 2005-11-12 |
| 修稿时间： | 2005-11-122006-04-11 |
A Study on the Productive Performance and Nutrient of Forage Maize |
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| WU Xin-ming,WANG Yun-qi,DONG Kuan-hu,LIU Jian-ning.A Study on the Productive Performance and Nutrient of Forage Maize[J].Chinese Journal of Grassland,2006,28(3):66-70. |
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| Authors: | WU Xin-ming WANG Yun-qi DONG Kuan-hu LIU Jian-ning |
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| Institution: | 1. Animal Husbandry and Veterinary Research Institute of Shanxi Academy of Agricultural Science, Taiyuan 030032,China ;2. College of Animal Sci- Tech , Shanxi Agricultural University, Taigu 030801 ,China |
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| Abstract: | The productive performance and the main nutrient of five cultivars of forage maize were studied.The results showed as follows:(1)According to observation of phenophase Donglingbai and Zhongyuandan No.32 were premature cultivars,on the contrary,Keduo No.8,Keqing No.1,Keduo No.4 were postmature cultivars.(2)The effect of fertilization on the yield is significant(P<0.05),the yield at 450kg/hm~2N and 300kg/hm~2N level was obviously higher than that at 150kg/hm~2N and 0kg/hm~2N.The change of stem to leaf ratio is evident in Zhongyuandan No.32 and Donglingbai compared with the other three(species.)(3)With the postmergence postponed,the content of crude protein,Ca,P and CA in cultivar of forage maize dropped,while ADF,NDF and OM increased significantly.The nutrition value in every cultivar is not clearly different in the same period.However,the content of WSC which is different from the nutrition ingredient is obviously higher(P<0.05)during the jointing stage and milk stage. |
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| Keywords: | Forage maize Species Nutrition Productive performance |
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