利用R语言程序计算德国弗莱维赫改良牛群的近交和亲缘系数  

Calculation of Coefficients of Relatedness and Inbreeding for Germany-Fleckvieh Using R Program

作　　者：孙晓玉[1] 刘胜军[2] 庄雨龙[1] 高志浩 梁魏苹 王洪亮[1] SUN Xiao-yu;LIU Sheng-jun;ZHUANG Yu-long;GAO Zhi-hao;LIANG Wei-ping;WANG Hong-liang(Heilongjiang Academy of Land Reclamation Sciences, Animal Husbandry and Veterinary Institute, Harbin 150038;Heilongjiang Bayi Agricultural University, Daqing, Heilongjiang 163319)

机构地区：[1]黑龙江省农垦科学院畜牧兽医研究所,哈尔滨150038 [2]黑龙江八一农垦大学动物科技学院,黑龙江大庆163319

出　　处：《中国牛业科学》2022年第2期42-44,72,共4页China Cattle Science

基　　金：财政部和农业农村部“国家现代农业产业技术体系资助”项目;原黑龙江农垦总局攻关课题“乳肉兼用西门塔尔牛高代杂交种群的定向培育和应用”(HNK135-04-04);肉牛杂交后代主要经济性状最佳组合基因型研究项目(HNK11A-08-02-02)。

摘　　要：[目的]利用德国西门塔尔牛(弗莱维赫牛)与澳大利亚西门塔尔母牛品系间、及德国西门塔尔牛(弗莱维赫牛)与本地肉用母牛选种选配后,培育优秀种群。[方法]通过个体牛只信息和编号、父母代和祖父母代信息和编号,采用近交系数和亲缘系数的计算公式,利用R语言编制程序计算47头德国西门塔尔牛(弗莱维赫牛)的后代母牛个体间亲缘系数和近交系数。[结果]所有个体间均无近交,近交系数为0,群体亲缘系数值在0~0.5000之间。本试验的牛群主要来自于自繁自育母牛场,做选配时,较好地控制了近交系数,但是,从亲缘系数来看,在群使用的种公牛较少,为防止近交,有必要提高使用种公牛家系的数量,每年都要计算近交系数和亲缘系数。[Objective]This experiment is to cultivate excellent populations using the breeds of German Simmental(Fleckvieh cattle),Australian Simmental cows,German Simmental(Fleckvieh cattle)and local beef cows by selection and mating.[Method]The correlation coefficient and inbreeding coefficient among the 47 German Fleckvieh cattle offspring cows were calculated by using R language programming based on individual cattle information,parental and grandparental generation information.[Result]The result showed that the inbreeding coefficient is among all individuals,and relationship coefficient was between 0 and 0.5.The cattle in this experiment mainly come from self-breeding cow farms.The inbreeding coefficient was well controlled during mating.However,from the relationship coefficient,fewer bulls were used in the herd.In order to prevent inbreeding,it is necessary to increase the number of bull families,and to calculate the coefficient of inbreeding and relationship every year.

关 键 词：德国西门塔尔牛(弗莱维赫牛) 亲缘系数 近交系数 R语言 系谱 

分 类 号：S823.92[农业科学—畜牧学]