| 稻草与氨化稻草干物质采食量的模型化研究 |
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| 引用本文： | 张吉鹍,钟小军,赵辉,肖海红,张.稻草与氨化稻草干物质采食量的模型化研究[J].中国奶牛,2010(5):12-14. |
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| 作者姓名： | 张吉鹍 钟小军 赵辉 肖海红 张 |
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| 作者单位： | 1. 江西省农业科学院动物种质资源创新与营养调控重点实验室,南昌,330200
2. 井冈山市井竹青实业有限公司,井冈山,343600 |
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| 基金项目： | 江西省农科院科技创新及成果转化基金与江西自然科学基金 |
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| 摘 要： | 本研究分别以稻草、氨化稻草为唯一能量和蛋白质来源,实测了山羊稻草、氨化稻草的干物质采食量(DMI),并借鉴现有成熟模型,建立了以稻草、氨化稻草的中性洗涤纤维(NDF)为预测因子的干物质采食量预测模型:DMI稻(g/d.kgMW)=30/NDF(%DM),DMI氨稻(g/d.kgMW)=39/NDF(%DM)。经验证,稻草、氨化稻草DMI预测模型的平均偏差(MD)分别为0.48g/d.kgMW与0.85g/d.kgMW,相应的平均预测方差(MSPE)为0.3599与1.0124。稻草与氨化稻草的MD、MSPE均很低,表明所建DMI预测模型精确可用。
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| 关 键 词： | 稻草 氨化稻草 采食量 模型 |
Study on Modeling of Dry Matter Intake of Rice Straw and Ammoniated Rice Straw |
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| Zhang Jikun,Zhang Xiaojun,Zhao Hui,Xiao Haihong,Zhang Jiao.Study on Modeling of Dry Matter Intake of Rice Straw and Ammoniated Rice Straw[J].China Dairy Cattle,2010(5):12-14. |
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| Authors: | Zhang Jikun Zhang Xiaojun Zhao Hui Xiao Haihong Zhang Jiao |
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| Institution: | 1.Key Laboratory of Animal Genetic Characteristics Innovation ＆ Nutrition Manipulation,Jiangxi Academy of Agricultural Science,Nanchang 330200;2.Jing Zhu Qing Industrial Limited Company of Jinggang Mountain,Jinggangshan 343600) |
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| Abstract: | The dry matter intake（DMI）of rice straw（RS）and ammoniated rice straw（ARS）was measured when RS and ARS fed individually as the sole source of energy and protein by goat wethers.And the model of DMI for RS（DMIRS）and ARS（DMIARS）was built when neutral detergent fiber（NDF）was used as predictor： DMIRS（g/d.kgMW）=30/NDF（%DM）,DMIARS（g/d.kgMW）=39/NDF（%DM）.Mean deviation（MD） and mean square prediction error（MSPE）were used to evaluate the valid and accurate of models in prediction of DMI.MD for the models of DMIRS and DMIARS were 0.48g/d.kgMW and 0.85g/d.kgMW individually,and MSPE were 0.3599 and 1.0124 correspondingly.Both models were dependable,because their MD and MSPE were very small. |
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| Keywords: | Rice straw Ammoniated rice straw Dry matter intake Modeling |
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