Morphological Features and Influence of Age and Breed on the Morphometry of Red Blood Cells of Female Cattle

The study was carried out on three female cattle groups namely; local (indigenous), Red Sindhi and cross breed Jersey in order to study the influence of age (10 months-2 years, i.e., group 1, 2-6 years, i.e., group 2 and 6-10 years, i.e., group 3) and breed on length and breadth of erythrocytes. Since the morphometric (length and breadth) data on these particular breeds and ages are inconsistent and inadequate and to prevent any possible confusion of anemic syndrome on the basis of size this study is undertaken. Poikilocytosis were seen. For each animal blood samples were collected by jugular venipuncture; smears were prepared on slides immediately after the blood collection and stained with Giemsa stain. Among the three breeds, there was significant increase (p<0.01) in length of red blood cell size in 2-6 years local cattle and significant decrease (p<0.01) in 2-6 years Red Sindhi cattle. Breadth of erythrocyte was significantly larger (p<0.01) in 6-10 years cross breed Jersey cattle and smaller in 10 months-2 years Red Sindhi cattle. Therefore, age and breed have profound effect on the morphometry of red blood cells. Careful attention must be observed in studying and interpretation of anemic syndromes on the basis of size.