| 提高泌乳盛期奶牛乳脂率与乳蛋白含量的营养调控研究 |
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| 引用本文： | 杨正德,涂家宽,裴成江,宋大书,刘付祥.提高泌乳盛期奶牛乳脂率与乳蛋白含量的营养调控研究[J].西南农业学报,2011,24(1). |
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| 作者姓名： | 杨正德 涂家宽 裴成江 宋大书 刘付祥 |
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| 作者单位： | 1. 贵州大学动物科学学院,贵州,贵阳,550025
2. 贵州省贵阳市清镇市奶牛场,贵阳,清镇,551400 |
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| 基金项目： | 贵州省科技攻关项目，贵阳市科技攻关项目 |
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| 摘 要： | 为研究提高奶牛乳脂率与乳蛋白含量的营养调控技术,选择体况、胎次、产犊时间、产奶量相近的泌乳盛期中国荷斯坦奶牛27头,采用L9(34)正交试验设计,进行了中性洗涤纤维(NDF)、小肠可消化蛋白(IDCP)、添加过瘤胃保护脂肪酸(RPFA)、过瘤胃保护氨基酸(RPAA)对泌乳盛期奶牛乳脂率与乳蛋白含量的影响试验.结果表明,日粮干物质(DM)中NDF41%、IDCP按我国<奶牛饲养标准>推荐量92%、脂肪酸钙150g/d、过瘤胃保护蛋氨酸8g/d+过瘤胃保护赖氨酸32g/d,可有效提高奶牛泌乳盛期的乳脂率与乳蛋白含量.
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| 关 键 词： | 奶牛 营养调控 乳脂率 乳蛋白 |
Effects of Nutritive Regulation on Milk Fat Percentage and Milk Protein Content of Daily Cows in Peak Lactation Stage |
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| YANG Zheng-de,TU Jia-kuan,PEI Cheng-jiang,SONG Da-shu,LIU Fu-xiang.Effects of Nutritive Regulation on Milk Fat Percentage and Milk Protein Content of Daily Cows in Peak Lactation Stage[J].Southwest China Journal of Agricultural Sciences,2011,24(1). |
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| Authors: | YANG Zheng-de TU Jia-kuan PEI Cheng-jiang SONG Da-shu LIU Fu-xiang |
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| Institution: | YANG Zheng-de1,TU Jia-kuan1,PEI Cheng-jiang1,SONG Da-shu2,LIU Fu-xiang2(1.College of Animal Science,Guizhou University,Guizhou Guiyang 550025,China,2.Qingzhen Dairy Farm,Guizhou Guiyang 551400,China) |
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| Abstract: | 27 Chinese-Holstein daily cows with the similar body status,birth rank,calving time and milk output were tested by the L9(34) design to study the effects of neutral detergent fiber(NDF),intestine digestible crude protein(IDCP),rumen protected fatty acid(RPFA) and rumen protected amino acids(RPAA) on milk fat percentage and milk protein content of daily cows in peak lactation stage and the nutritive regulation technique for improving the milk fat percentage and milk protein content.The results showed that 41... |
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| Keywords: | Daily cow Nutritive regulation Milk fat percentage Milk protein |
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