دراسة مقارنة لتقدير المكونات الكيميائية في عضلات أسماك الشبوط Heckel , 1843)) Arabibarbus grypus والشانكAcanthopagrus arabicus ( Iwatsuki , 2003)

A comparative study to determinetion of the chemical components of muscles in Arabibarbus grypus ( Heckel, 1843) and the Acanthopagrus arabicus (Iwatsuki, 2003)

Summary

The current study included a comparative study of the chemical composition of muscles an two species of Osteichthyes fish : the Arabibarbus grypus (Heckel, 1843) which belonging to the family Cyprinidae, and Acanthopagrus arabicus (Iwatsuki, 2003) which belonging to the family Sparidae the purposeof the study is to conduct a comparative study between the species under in vestigation determining the locomotor activity and its nutritional value by estimating the chemical contents of fish muscles, which included: protein content, fat content, moisture content, ash content, and caloric values in two different selected regions of the body: (R1 and R2) (50) samples for each studied fish were collected from Euphrates river (Shatt al-Hindiya) in Karbala governorate during the period of September 2021 to November 2021 using gill nets and cast nets, with the aids of fishermen in the area.
The results of the current study decleared a difference in the rates of chemical composition in the muscles of the studied fish, as the total rates of protein content values in Arabibarbus grypus ranged between (16.72-17.52%), in Acanthopagrus arabicus fish were (16.80-18.67%). The total averages of fat content values for Arabibarbus grypus ranged between (5.95 – 8.24%), while in Acanthopagrus arabicus fish were (4.65 – 6.21%) . The total averages of moisture content values for Arabibarbus grypus ranged between (70.34 – 67.01%), While the values in Acanthopagrus arabicus fish were (76.45 – 72.56 %). The total averages of ash content rates for Arabibarbus grypus ranged between (6.22 – 6.70 %) whereas the total rates of ash content in Acanthopagrus arabicus were (% 1.36 – 2.40).
The results of the current study revealed that Arabibarbus grypus fish have higher calories (energy) compared to Acanthopagrus arabicus fish. The total calorie values for protein and fat contents of Arabibarbus grypus were (133.56 Kcal/g) whereas the total calories values for protein and fat content of Acanthopagrus arabicus fish were (120.67 Kcal/g). In light of the current results, the studied fish of were considered among the medium-fat fish due to their proportions of the fat content in their muscles.