中国畜牧兽医2017，Vol.44Issue(5)：1363-1368,6.DOI:10.16431/j.cnki.1671-7236.2017.05.015
新疆褐牛与荷斯坦牛犊牛死亡率的影响因素分析
Analysis of Factors Influencing the Mortality Rates of Xinjiang Brown Cattle and Holstein Cattle Calves
摘要
Abstract
Calves health were related to the quality of entire herd,reducing the mortality rate of calves had important significance to improve the efficiency of pasture.In order to better under-stand the mortality rate and influencing factors on calves death,the combined methods of field survey and data analysis were adopted to analyze the mortality rate of Xinjiang Brown calves and Holstein calves.Based on the 7157 calves records of a cattle farm in nearly 16 years,preliminary statistical analysis were taken on these data in Excel.According to the characteristics of Xinjiang climate,the seasons was divided into four parts that from March to May was spring,June to Au-gust was summer,September to November was autumn,and December to next year February was winter.Varieties of breeds were the Xinjiang Brown calves and Holstein calves,the years of birth from 1999 to 2014 was divided into 16 levels,the sex of born calves were divided into 2 lev-els that males and females.The effects of different years,breeds,seasons of birth,sex of calves,and different ages on the mortality rate of Xinjiang Brown calves were analyzed using SAS 8.1 software.The results showed that different breeds,years,seasons of birth,and sex of calves af-fected the mortality rate of Xinjiang Brown calves with different extent,the mortality rate of Xin-jiang Brown calves was higher than Holstein calves (P <0.05);At one month old,the mortality rate of Xinjiang Brown calves was higher than Holstein calves (P <0.05);The mortality rate in 2006,2009 and 2010 were higher than other years (P <0.05),the calf mortality rate was rela-tively small from 2011 to 2014;The mortality rate of winter seasons was higher than summer (P<0.05).To reduce the mortality rate of calves was a problem that could not be ignored in the process of cattle breeding.The calves mortality rate was affected by genetic and environmental factors,only by controlling the various environmental factors with reasonable ways,could im-prove the health level of calves.关键词
新疆褐牛/荷斯坦牛/犊牛/死亡率Key words
Xinjiang Brown cattle/Holstein cattle/calves/mortality rate分类
农业科技引用本文复制引用
王丹,刘奎国,马那提·哈山,张梦华,魏趁,席艾力·依明,张超,姬鹏飞,黄锡霞..新疆褐牛与荷斯坦牛犊牛死亡率的影响因素分析[J].中国畜牧兽医,2017,44(5):1363-1368,6.基金项目
新疆维吾尔自治区科技计划项目(201230116-7) （201230116-7）
"十二五"农村领域国家科技计划课题(2011BAD28B02) （2011BAD28B02）
现代农业(奶牛)产业技术体系建设专项资金(CARS-37) （奶牛）
