HAEMATO-BIOCHEMICAL STUDY IN LACTATING COWS AND THEIR CALVES

Abstract

Age-related changes in hematologic values are known to occur in many species. Few published studies include comparative measurements of hematological and serum biochemical parameters in crossbred cows and calves. The aim of the present study was to investigate and compare the blood composition of lactating cows and their milk feeding calves. Thirty cross breed clinically healthy calves (16 male and 14 female) and thirty cross breed clinically healthy lactating cows were blood sampled. Total erythrocyte count(TEC), Differential Leukocyte count (DLC), average mean values of hemoglobin (Hb), Packed cell volume(PCV), Mean corpuscular volume(MCV), Mean corpuscular hemoglobin (MCH), Mean corpuscular hemoglobin concentration (MCHC) were determined by using routine hematological procedures and calcium, glucose, total protein, albumin were determined by using biochemical analyzer. There were significant variations found in most hematological and biochemical parameters (p < 0.05) but all the values are within the reference range . The results of the study showed that among hematological parameters Hb concentration (8.28 ± 0.846 gm/dl) , total RBC count (6.37 ± 0.66 ×106/μl), lymphocyte (64.26 ± 5.91%), monocyte (9.26 ± 3.39 %) was significantly higher in calves than cows. On the other hand neutrophil (21.10 ± 5.29%) , eosinophil (10.07 ± 3.75% )and MCV (49.99 ± 5.16 ft)was significantly higher in cows than calves. Comparing with the biochemical parameters between cow and calf, glucose level (57.68 ± 2.67 mg/dl) was significantly higher in milk feeding calves but total protein level (7.70 ± 1.17gm/dl) was significantly higher in lactating cows. It may be concluded that hemato-biochemical variation present between cow and calf and it is very important for interpretation of laboratory data