| 中国荷斯坦牛乳成分数量性状表型参数分析 |
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| 引用本文： | 宋桂敏,张学炜,王立杰.中国荷斯坦牛乳成分数量性状表型参数分析[J].天津农学院学报,1999(2). |
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| 作者姓名： | 宋桂敏 张学炜 王立杰 |
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| 作者单位： | 天津农学院动物科学系，天津市工农联盟奶牛一场 |
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| 摘 要： | 根据工农联盟奶牛一场（１９９６～１９９８年）９３４头中国荷斯坦牛的乳脂率、乳蛋白率和干物质含量的测定，按不同胎次统计分析获得如下牛乳成分表型参数：乳脂率３．８１±０．３９２％，乳蛋白率３．１０±０．２３６％，干物质含量１２．２６±０．６７０％，其中各胎次乳成分为：第１胎最高，乳脂率３．９６％，乳蛋白率３．１４％，干物质含量１２．６３％，以后随胎次增长有下降趋势。
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| 关 键 词： | 中国荷斯坦牛 乳成分 表型参数 |
Analysis on Quantitative Character Phenotypic Parameter\=of Dairy Cow's Milk Composition |
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| Song Guimin,Zhang Xuewei,Wang Lijie.Analysis on Quantitative Character Phenotypic Parameter\=of Dairy Cow's Milk Composition[J].Journal of Tianjin Agricultural College,1999(2). |
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| Authors: | Song Guimin Zhang Xuewei Wang Lijie |
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| Institution: | Song Guimin1,Zhang Xuewei1,Wang Lijie2 |
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| Abstract: | The statistical analysis was carried out in quantitative
character phenotypic parameter of dairy cow's milk composition, such as butterfat rate, butter
protein rate and dry matter content in milk on the basis of 934 cows' testing data from the First
Dairy Farm in Tianjin WorkerPeasant Alliance Farm in 19961998. The results showed that
average butterfat rate was 3.810.392 %, average butter protein rate was 3.100.236%, and
average dry matter content was 12.260.670%. Among them, the phenotypic parameter of milk
composition in firstborn was highest and butterfat rate, butter protein rate and dry matter content
in milk were 3.96% , 3.14% and 12.63% respectively . And they would be downward trend with
rising of cow's age. |
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| Keywords: | Dairy cow Milk composition Phenotypic parameter |
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