摘 要: | 扑28 3(13l肥照,)︸,曰9﹄少︸,1‘尹.了、J‘.、l·情况介绍·国外家畜遗传资源保存和利用概况(综述)(上) (下),..·..··..···..········……‘…‘····一〔1·2)(2·7)加t大动物遗传资源的现状和保存··、··············……(l·5)美国奶牛业发展的几个重要因素·····················……(2·2)国外养鹅业现状,··,,··””··一··,·······,,····、·········一‘2’6)东欧经互会成员国的畜产品生产和饲料供应·······一(2·9)丹麦猪的选育····…
|