Vol. 12, Special Issue 7 (2023)

Author(s):
Abhishek Kumar, Pankaj Kumar Choudhary, Pankaj Kumar Maurya, Pramod Kumar, SK Maurya, Vikas Rai, DP Srivastava and Raj Kapoor Verma

Abstract:
The study demonstrates the effect of extreme heat conditions on hematological parameters in cross-bred cows during different seasons. Total eighteen cross bred cows of 2-4 years age group were selected from three districts namely Lucknow, Sitapur and Unnao of central plane zone of Uttar Pradesh. Blood sample was collected from experimental animal at weekly intervals in spring and summer season from the same animals. The haematological parameters like Haemoglobin, Total erythrocyte count (TEC), Total leucocyte count (TLC) and Packed cell volume (PCV) were recorded. Maximum and minimum ambient temperature and relative humidity of all three districts were also recorded during the experimental periods. There was found a significant (p<0.01) deference in the mean values of maximum and minimum ambient temperature in spring and summer seasons in all three districts. There was also found a significant (p<0.01) deference in the mean values of relative humidity in spring and summer seasons in all three districts. There was decrease in haemoglobin concentration and packed cell volume in summer season as compared to spring season in all three districts and was found significant (p<0.01) deference between two seasons. There was significant (p<0.01) decrease in Total Erythrocyte Count (TEC) and increase in Total Leucocyte Count (TLC) in summer session as compared to spring session in all three districts. In conclusion there was found a significant positive correlation among Haemoglobin concentration with PCV and Total Erythrocyte Count and negative correlation with Total Leucocyte Count.