Analysis of changes in selected hematological parameters in blood from primiparous dairy cows during last trimester of pregnancy and first two months of lactation

Dynamic changes in an organism of heifers at the end pregnancy, and primiparous cows early lactation, may imply morphological parameters. Their evaluation contribute to a better understanding changes, occurring pregnant lactating young cows. Hence, aim study was investigate, analyze evaluate hematological parameters peripheral blood (RBC, MCV, HGB, MCH, MCHC, WBC, PLT HCT) heifers/primiparous cows, Polish Holstein-Friesian Black-and-White variety, during last trimester pregnancy first two months with particular emphasis on transition period. Blood were analyzed use analyzer: scil Vet abc Plus+ (HORIBA Medical), following dates: 90, 30, 14 7 days before parturition 7, 14, 30 60 after parturition. Results indicate that most abrupt observed for hematocrit, erythrocyte count, leukocytes, thrombocytes hemoglobin concentration blood. Parameters red cells, didn’t exhibit any statistically significant changes. Noteworthy, is convergence trends hematocrit High stable due count this Decrease RBCs calving, lower values caused postpartum decrease its stabilization level. These observations denote indirectly volume, period, what supported by: tendencies concentration, MCV MCHC. Obtained results suggest high efficiency homeostatic mechanisms Our be useful comparative studies both physiology health disturbances research pre post-partum