Productivity data of breeding livestock

Monthly summarized data on the productivity of the first lactation cows during the 90 and 305 lactation days and the average productivity of all cows (not only the first lactation) (kg milk, fat percentage and kg, protein percentage and kg), number of cows are presented. and the age in months of the first lactation cows. Data are presented by municipalities, varieties and groups of varieties.本数据集涵盖按月汇总的多类统计内容：头胎泌乳母牛（first lactation cows）在泌乳90天与泌乳305天的生产性能数据；所有母牛（不限于头胎个体）的平均生产性能数据，具体包含产奶量（千克）、乳脂率及乳脂产量（千克）、乳蛋白率及乳蛋白产量（千克）；母牛存栏数量；以及头胎泌乳母牛的月龄数据。上述数据均按市镇、品种（varieties）及品种群（groups of varieties）进行分类呈现。