中国荷斯坦牛泌乳时期与部分乳成分的相关分析  

Analysis of Relationship between the lactation period and the milk compositions in Chinese Holstein Cattles

作　　者：王国富[1] 吴慧光[2] 季守财 吴红君 王东升 何文波[5] 高树新[1] 

机构地区：[1]内蒙古民族大学动物科学技术学院,内蒙古通辽028042 [2]内蒙古民族大学生命科学学院,内蒙古通辽028042 [3]内蒙古通辽市嘎达苏种畜场,内蒙古通辽029100 [4]内蒙古呼伦贝尔市谢尔塔拉种牛场,内蒙古呼伦贝尔022261 [5]南京农业大学动物科技学院,南京210095

出　　处：《中国乳品工业》2010年第5期20-21,25,共3页China Dairy Industry

基　　金：国家科技支撑计划项目(2008BADB2B03);国家自然科学基金(30860186);内蒙古自然基金(200607010510);内蒙古人才基金

摘　　要：随机选择泌乳早期、中期和后期的中国荷斯坦头胎奶牛96头,对其奶样进行分析。结果表明,泌乳早期和泌乳中期的乳脂率差异显著(P<0.05),泌乳后期和泌乳早期、泌乳中期的乳脂率差异不显著(P>0.05);各个泌乳时期的乳蛋白率和体细胞数差异均不显著(P>0.05)。Random selected early lactation period Holstein cows of one-child 13, mid-lactation period 46, late lactation period 37, their milk samples for analysis. The results of milk samples for analysis： average milk fat rate of early lactation period was 3.8377%, mid-lactation period, 3.4461%, late lactation period ,3.5973%, milk fat rate of early lactation period and mid-lactation period was significandy （P 〈 0.05）, milk fat rate of late lactation period and early lactation period, mid-lactation period was no significant differences （P 〉 0.05）; the average milk protein rate was 3.0300%, 3.0228%, 3.1327% respectively, milk protein rate during lactation periods was no significant differences （P 〉 0.05）; the average number of somatic cell was 141.3462 million / mL,69.5891 million / mL, 85.8351 million / mL respectively, somatic cell count during lactation periods was no significant differences （P 〉 0.05）.

关 键 词：中国荷斯坦牛 泌乳时期 乳脂率 乳蛋白率 体细胞数 

分 类 号：S823.91[农业科学—畜牧学]