检索规则说明:AND代表“并且”;OR代表“或者”;NOT代表“不包含”;(注意必须大写,运算符两边需空一格)
检 索 范 例 :范例一: (K=图书馆学 OR K=情报学) AND A=范并思 范例二:J=计算机应用与软件 AND (U=C++ OR U=Basic) NOT M=Visual
作 者:刘晶玉 范晋源 Liu Jingyu;Fan Jinyuan(Breeding and Improvement Station of Animal Husbandry and Veterinary Center,Qinyuan County,Changzhi City,Shanxi Province,Changzhi 040006,China)
机构地区:[1]山西省长治市沁源县畜牧兽医中心繁育改良站,长治040006
出 处:《畜牧兽医科学(电子版)》2020年第16期1-3,共3页Graziery Veterinary Sciences:Electronic Version
摘 要:用四川金堂黑山羊、黎城大青羊与沁源县本地山羊杂交,观察改良后的效果,结果表明,四川金堂黑山羊杂交后的F1出生、1月龄、2月龄、3月龄、4月龄、5月龄、6月龄体重明显高于对照组本地黑山羊;体高、体长、胸围均高于对照组同龄羊。得出本地黑山羊与四川金堂黑山羊杂交效果显著,是沁源区发展黑山羊生产较为理想的杂交组合,值得推广。Cross-breeding of Sichuan Jintang black goat,Licheng county big green goat and Qinyuan county local goat was carried out to observe the effect of improvement,the body weight at birth,one month,two months,three months,four months,five months and six months after crossbreeding of Sichuan Jintang black goats were significantly higher than that of local black goats in the control group.It was concluded that the local black goat and Sichuan Jintang black goat had a good cross effect and was an ideal cross combination for black goat production in Qinyuan area.
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在链接到云南高校图书馆文献保障联盟下载...
云南高校图书馆联盟文献共享服务平台 版权所有©
您的IP:18.119.141.157