Effect of Age on some Blood cell and biochemical factors of Common carp ) Cyprinus carpio Linnaeus 1758

In order to determine the effect of age on some blood cell and biochemical parameters of common carp in cooperative reproduction season 89-90 in cooperative reproduction center 12 (Rasht) from 40 common carp in four age groups under 1 year old,1,2 and 3 years old (each group 10 specimen) blood sampling were occurred. Analysis results showed that the most of red blood ,white blood, hemoglobin, mean corpuscular hemoglobin, corpuscular hemoglobin concentration, glucose and Triglycerid observed in 2 years old, The most of cholesterol and hematocrit in 1 year and most amount of protein and calcium was seen in 3 years old and The least amount all of factors observed in under 1 year. Also most and least amount of mean corpuscular was observed in 1 year old and under 1 year old respectively whereas the most and least amount of phosphorus was seen in under 1 year and 3 years old. All factors in different ages have a statistically significant difference (P<0.05). A cording to results of this study and other surveys on influence cell and ionic factors on age, species… from these results can be used for management of culture of this economic species.