A comparative Study of Some Biochemical Characteristics of Common carp (Cyprinus carpio L.) in Earthen ponds at Different Locations of the Tigris and Euphrates Rivers / Middle of Iraq.

Abstract

This study was conducted with the aim of showing the effect of different locations and water quality on some blood enzyme properties of common carp (Cyprinus carpio L.). This study was carried out in four different locations in central Iraq for the period from June 1, 2022 to November 30, 2022. The Dujail and Suwayra sites on the Tigris River were used, and the Fallujah and Mahaweel sites on the Euphrates River were used. 120 fish were collected from the four sites, 30 fish for each site, and some biochemical traits were measured, including total protein, albumin, kinase phosphatase, glucose and total cholesterol. The results of the current study showed that the values of blood enzymes increased with the rise in temperatures during the hot months and decreased with the decrease in temperatures in the cold months. It was also found that there were highly significant differences between the Tigris and Euphrates rivers in the values of total protein, kinase phosphatase, glucose and total cholesterol, as the Tigris River was significantly superior to the Euphrates River in the values of these four enzymes, and this indicates that the Euphrates River is better than the Tigris River. As for the value of the two albums, there are no significant differences between the Tigris and Euphrates rivers. The current results also showed that there were significant differences in the values of total protein and kinase phosphatase, as these values were significantly higher in the Dujail site than in the Fallujah site, while no significant differences were observed between the Suwayrah and Al-Mahaweel sites. The current results also showed that there were no significant differences between the four sites in the value of the two albums. The current results showed higher values of blood enzymes in the Dujail site compared to the Fallujah site, and this indicates that the Fallujah site is one of the best sites in the values of enzymes, being close and within the natural limits, and this is due to the availability of an appropriate healthy environment in the Fallujah site compared to other sites.