Dataset of management and growth curve derivatives to predict first lactation milk yield

This dataset presents management and modeled variables of 78 Holstein-Friesian heifers. Spreadsheets consist of seven sets of training and testing data randomly split with replacement. In each spreadsheet, the included variables are: Variable name Description ID Heifer ID tag Mes Month of birth of the heifer Estacion Birth season, according to Mes L_305_F_2x2 First lactation milk yield is calculated as the integral from day 1 to 305 of a Fourier model representing daily milk yield (kg) Edad_IA Heifer's age at effective artificial insemination servicios Number of inseminations Edad_1P Heifer's age at first calving P_parto Heifer's weight at first calving (kg) B_parto Heifer's condition score at first calving Sexo_C Calf sex Peso_C Calf weight at birth (kg) wt_3._F, wt_6._F, wt_9._F, wt_12._F, wt_15._F, wt_18._F, wt_21._F Heifer's weight at various months after birth, as per a Fourier model of Heifer's growth curve (kg) X1STd_3._F, X1STd_6._F, X1STd_9._F, X1STd_12._F, X1STd_15._F, X1STd_18._F, X1STd_21._F First derivative at several months after birth, based on a Fourier model of Heifer's growth curve X2STd_3._F, X2STd_6._F, X2STd_9._F, X2STd_12._F, X2STd_15._F, X2STd_18._F, X2STd_21._F Second derivative at several months after birth, based on a Fourier model of Heifer's growth curve wt_3._L to wt_21._L, X1STd_3._L to X1STd_21._L, X2STd_3._P to X2STd_21._P Variables generated from a Power model本数据集涵盖78头荷斯坦-弗里生（Holstein-Friesian）青年母牛的管理相关变量与建模衍生变量。数据集共包含7组经有放回随机划分得到的训练与测试数据集，以电子表格形式存储。 每份电子表格中包含的变量如下： | 变量名 | 变量说明 | | ---- | ---- | | ID | 青年母牛耳标编号 | | Mes | 青年母牛的出生月份 | | Estacion | 基于出生月份划分的犊牛出生季节 | | L_305_F_2x2 | 首胎泌乳期305天产奶量：通过表征日产奶量（kg）的傅里叶（Fourier）模型，对第1至305天的日产奶量积分计算得到的首胎产奶量 | | Edad_IA | 青年母牛接受有效人工授精时的年龄 | | servicios | 青年母牛接受的人工授精总次数 | | Edad_1P | 青年母牛首次产犊时的年龄 | | P_parto | 青年母牛首次产犊时的体重，单位为千克（kg） | | B_parto | 青年母牛首次产犊时的体况评分 | | Sexo_C | 初生犊牛的性别 | | Peso_C | 犊牛出生时的体重，单位为千克（kg） | | wt_3._F, wt_6._F, wt_9._F, wt_12._F, wt_15._F, wt_18._F, wt_21._F | 基于青年母牛生长曲线的傅里叶模型计算得到的出生后3、6、9、12、15、18、21月龄时的体重，单位为千克（kg） | | X1STd_3._F, X1STd_6._F, X1STd_9._F, X1STd_12._F, X1STd_15._F, X1STd_18._F, X1STd_21._F | 基于青年母牛生长曲线的傅里叶模型计算得到的出生后对应月龄的生长速率（一阶导数） | | X2STd_3._F, X2STd_6._F, X2STd_9._F, X2STd_12._F, X2STd_15._F, X2STd_18._F, X2STd_21._F | 基于青年母牛生长曲线的傅里叶模型计算得到的出生后对应月龄的生长加速度（二阶导数） | | wt_3._L to wt_21._L, X1STd_3._L to X1STd_21._L, X2STd_3._P to X2STd_21._P | 通过幂（Power）模型生成的对应衍生变量