乳牛产乳量的记录规程
Procedure for milk recording for cows
摘要：
Specifies a method for determining the total quantity of milk, fat and protein produced by a cow in each lactation period and during 305 days of lactation or in each operational year in its existence. Shall be applied to all cows of milk-producing breeds ao breeds with a predominant milk-producing capacity, belonging to a herd. Methods of evalutiion and calculation examples are listed in two annexes.
标准编号
ISO 1546-1981
标准类型
D_FOREIGN
发布单位
IX-ISO
发布日期
1981年2月1日
状态
废止
强制性标准
否
实施日期
1981年2月1日
开本页数
9
国际标准分类号
67.100.10 65.020.30
