Effect of aging on some blood parameters of local cows

الملخص EN

The study includes (30) local cows from Al-Alam in the east of Tikrit city, which distributed into three groups, first group included (10) cows aged (1-1.5 years), second group included (10) cows aged (5-7 years), while the third group was included (10) cows aged (10-12 years) in order to study the effects of progressing of age on some physiological parameters.

The results showed that all of the (Erythrocyte RBC, Hemoglobin HB and Packed cell volume P.C.V) increased significantly (p≥0.05) in the second group in comparison with first and third group of the study and the lowest value in the third group, while platelets increased gradually and significantly with progressing in age.

In addition, WBCs increased significantly in the second group in comparison with first and third group and decreased significantly in the third group while the percentage of eosinophil and neutrophils showed significant increase in the third group and the lowest in the first group, lymphocytes showed a gradual significant decreasing with increasing in age in the studied groups.

Monocytes increased significantly in the second aged group but there was no significant difference between the small aged and old aged groups, basophil revealed significantly increased in the second aged group and the significantly decreased in the older aged group.

In this study, it has concluded that with age-progress has a negative effect on the blood components represented by the reduction of both red blood cells and white blood cells on the Physiological criteria in the local cows