胎次对西北地区西门塔尔牛产奶量的影响  

Effects of Different Parities on Milk Production for Simmental in the Northern Region

作　　者：段向阳[1,2] 张春红[2] 郑拉弟 赵永猛 马新兵[2] 骆荣生[2] 黄锡霞[1] 

机构地区：[1]新疆农业大学动物科学学院,乌鲁木齐830052 [2]新疆呼图壁种牛场,呼图壁831200 [3]内蒙古宏泰大地饲料科技有限责任公司,乌兰察布012000

出　　处：《中国奶牛》2009年第9期35-37,共3页China Dairy Cattle

基　　金：国家"十一五"科技支撑计划项目(2006BAD04A11-06);新疆维吾尔自治区科技重大专项项目(编号:200731134);农业部公益性行业(农业)科研专项(nyhyzx07-036-10);国家博管委博士后项目

摘　　要：本文以新疆呼图壁种牛场牧二场1～7胎863头次的西门塔尔牛的产奶量数据为研究对象,利用SPSS(13.0)单因素方差分析过程,分析了胎次对西门塔尔牛产奶量的影响,结果表明:第1胎产奶量最低,第3胎产奶量最高。其中第1胎次奶牛305天泌乳量与第2、3、4、5胎次305d泌乳量差异极显著(P<0.01),第3胎次奶牛305d泌乳量与第7胎次差异显著(P<0.05),其他各胎次间差异不显著(P>0.05)。因此,加强饲养管理、合理调整牛群结构是提高群体产奶量增加经济效益的关键。According to 863 milk production records of Simmental cattle from second ranch in Hutubi herd farm among 1 -7 parity, the effect of different parity on 305-day milk yield were analyzed by One-way ANOVA. The results were as follows： the cows calving in first parity had the lowest 305-day milk yield, and third parity had the highest 305-day milk yield. The difference between first parity and second, third, fourth, fifth parity were significant （P〈0.01）. The difference between third parity and seventh parity were highly significant （P〈0.05）, and the difference between other parities were not significant （P〉0.05）. Therefore, improving raising management and appropriately adjusting herd construction were the critic for increasing economic benefit.

关 键 词：西门塔尔牛 胎次 305D产奶量 

分 类 号：S823.3[农业科学—畜牧学]