Statistical analysis alternatives to validate hematic parameters in dairy under tropical conditions

The hematic parameters of cows selected for milk production in grazing under tropic conditions were analyzed based on six experimental studies. major objective was to determine statistical analysis alternatives that could be used the study physiological, environmental or genetic variations. hematocrit, hemoglobin concentrations and counts polymorphonuclear cells (i.e., eosinophils, basophils, neutrophils lymphocytes). Initially 972 data from adult with productions considered medium-high context local dairy analyzed. After information decanting process, 415 records used. These corresponded a sampling period 30 days before calving day 105 postpartum, determinations made fortnightly. Blood collection every two weeks each moment defined as period. Different analytical techniques applied searching extract best reused future. type Random Forest (RF) technique, clustering, variance.The effect an indicator energy metabolism (non-esterified fatty acids - NEFA), protein (total TP) 10 periods, three breed groups types nutritional management given animals blood variables Multivariate correlation machine learning methods data. Results indicated hematological behavior change throughout close up dry cow, transition first phase lactation. No high direct inverse found among variables. Hematocrit levels can estimated associated metabolic indicators components. Further studies are required elucidate during