A comparative Study of Blood Physiological Characteristics in Common Carp Fish Reared in Earthen Ponds in Different Locations at the Tigris and Euphrates Rivers in Central Iraq

Abstract

This study was conducted with the aim of showing the effect of location and water quality on the blood and physiological characteristics of Common Carp fish. This study was carried out in four different sites in central Iraq for the period from 1/June 2022 to 30/November 2022, where the sites of Dujail and Suwayrah at the Tigris River were used, and the sites of Fallujah and Al-Mahawel at the Euphrates River. 120 fish were collected from the four sites, 30 fish for each site, and some traits were measured. The physiology of fish blood represented by the number of red blood cells, white blood cells, compacted blood volume, and hemoglobin concentration. The findings revealed that there were very substantial changes in the amount of compressed blood, the number of red and white blood cells, and the number of red and white blood cells between the Dujail and Fallujah locations, as it recorded 2.0 cells × 10 6 / mm3 and 32.8 cells × 10 3 / mm3 and 38.4 cells, respectively, in the Dujail site, and it recorded 1.8 cells × 10 6 / mm3. mm 3 and 30.9 cells × 10 3 / mm 3 and 37.3, respectively, in the Fallujah site, while there were no significant differences between the sites of Al-Suwaira and Al-Mahaweel. The results showed that there were highly significant differences in hemoglobin concentration between Dujail, Suwaira and Fallujah, as it recorded 12.0, 11.1 and 9.0, respectively. While there were no significant differences between the site of Al-Suwaira and Al-Mahaweel in hemoglobin concentration.