摘要
为了明确环境因素与山羊体质指数(BMI)的关系,分析环境因素对不同性别山羊影响的差异,为山羊养殖过程中环境控制提供参考,该研究收集了中国70个山羊产地的气象数据以及各产地不同性别山羊的体重、体长等数据;计算BMI,进行了逐步多元回归分析。结果显示,日照时数对公羊BMI有显著影响(P<0.05);极端最低温度对母羊BMI有极显著影响(P<0.01),即母羊对极端低温的耐受力比公羊差。
The objective of the present study was to clarify the relationship between environmental factors and BMI of goats of different genders,and to provide references for environmental control during goat breeding.Meteorological data of 70 goat farming areas and the weight and body length of goats of different genders from the above regions were collected.BMI was calculated,and stepwise multiple regression analysis was carried out.Regression analysis showed that sunshine duration had significant effects on BMI of rams(P<0.05),extreme minimum temperature had significant effects on BMI of ewes(P<0.01),which means ewes are more susceptible to extreme minimum temperature.
作者
孙灵
姜勋平
刘桂琼
SUN Ling;JIANG Xunping;LIU Guiqiong(College of Animal Science and Technology,Huazhong Agricultural University,Wuhan Hubei 430070,China)
出处
《家畜生态学报》
北大核心
2020年第6期74-78,共5页
Journal of Domestic Animal Ecology
基金
国家重点研发计划(2018YFD0502004)
国家肉羊产业技术体系项目(CARS-38-03A)
宜昌白山羊新品种培育(ycxm2015001,ycxm2015003,ycxm2016007)。
关键词
性别
山羊
BMI
光照
温度
gender
goat
BMI
illumination
temperature
