Haemogram in respect of total erythrocyte count (RBC), haemoglobin (Hb), pa
cked-cell volume (PCV), total leukocyte count (WBC) and differential leukoc
yte counts (DLC) in 7 female yaks at 3 consecutive days pre-parturient, pos
tparturient and on the lay of parturition were determined. RBC count, per c
ent Hb, PCV and WBC counts substantially increased on the day of parturitio
n. The decline in the values was observed within 24 hr. Neutrophils and lym
phocytes increased on day of parturition and then started declining slowly
and reached preparturient values within 3 days.