Dataset for study: Association between production and reproduction parameters based on parity and breed of dairy cows in the Czech Republic

Milk production and the efficiency of dairy cow breeding are significantly influenced by reproductive factors. The purpose of our research was to examine the relationships between selected milk production and reproductive parameters. We evaluated 659 dairy cows, including 444 purebreds from the Czech Fleckvieh and Holstein breeds and 215 crossbreds. The evaluation included data from January to December 2018. Data on average milk yield per lactation (MY, kg), average fat in milk per lactation (F, kg), average protein in milk per lactation (P, kg), average lactose in milk per lactation (L, kg), average percentage of fat in milk (F%), average percentage of protein in milk (P%), and average percentage of lactose in milk (L%) were measured using the Pulsameter 2 (certified by ICAR, Labor- und Messgeräte GmbH, Germany). The dataset was further supplemented with data on SP (d), CalvInt (d), and summary selection indices for the Czech Fleckvieh (Genetic Total Merit Index – GZW) and Holstein breed index (Selection Index Holstein – SIH) from the performance control database maintained by the Czech Moravian Breeders Corporation (CˇMSCH;Hradištko, Czech Republic). This dataset provides key information on dairy cows, including individual IDs, breeding details, calving dates, and lactation periods. It tracks cows' reproductive history (parity and calving intervals) and farm location (Farm ID and Stable ID). The dataset also includes performance metrics (potentially related to breeding and health) and detailed records of milk production, including quantity and content analysis for fat, protein, and lactose. The dataset could be used for various purposes in the field of dairy cattle research, as it contains valuable information about reproduction and production of many dairy cows over an extended period.

奶牛泌乳性能与育种效率显著受繁殖相关因素影响。本研究旨在探究选定的泌乳性能与繁殖参数间的关联。本研究共评估659头奶牛，其中444头为捷克弗莱维赫（Czech Fleckvieh）与荷斯坦（Holstein）纯种牛，215头为杂交牛，评估数据覆盖2018年1月至12月。采用德国Labor- und Messgeräte GmbH生产、获国际奶牛记录联合会（ICAR）认证的Pulsameter 2设备进行测定，涵盖泌乳期平均产奶量（MY, kg）、泌乳期平均乳脂产量（F, kg）、泌乳期平均乳蛋白产量（P, kg）、泌乳期平均乳糖产量（L, kg）、平均乳脂率（F%）、平均乳蛋白率（P%）及平均乳糖率（L%）相关数据。本数据集还补充了来自捷克摩拉维亚育种公司（ČMSCH；捷克共和国赫拉迪什科）维护的性能测定数据库的相关数据，包括配种天数（SP，天）、产犊间隔（CalvInt，天），以及捷克弗莱维赫牛的综合选择指数（遗传总价值指数GZW）与荷斯坦牛选择指数（SIH）。本数据集包含奶牛的核心信息，包括个体编号、育种详情、产犊日期及泌乳周期；同时记录了奶牛的繁殖历史（胎次与产犊间隔）及牧场位置信息（牧场编号与牛舍编号）。数据集还涵盖了可能与育种及健康相关的性能指标，以及泌乳性能的详细记录，包括产奶量及乳脂、乳蛋白、乳糖的成分分析数据。本数据集包含大量奶牛长期的繁殖与泌乳性能相关的宝贵信息，可应用于奶牛养殖研究领域的多种场景。