Paper Details

Body composition of big head carp (Aristichthys nobilis) in Different weight classes

Masome Nozarian, Mehran Javaheri Baboli, Abolfazl Askary Sary

DOI: http://dx.doi.org/10.12692/ijb/5.4.88-93

Int. J. Biosci. 5(4), 88-93. August, 2014. (PDF)

Abstract:

Big head carp (Aristichthys nobilis) is one of the most important kinds of fish in fish farming industry in freshwater. This research aims to investigate changes trend of rate of chemical compositions of big head carp fillet (Aristichthys nobilis) using regression equations. To do so, 40 fish with different weights were caught and the percentage rate of chemical compositions, moisture, fat, protein, ash, fiber, and carbohydrate content was measured. Then, the relationship between these factors and total weight of the fish was examined and the kind of relationship and their equation were determined. The results showed that there was a significant correlation between moisture, fat, and protein content in Aristichthys nobilis (P<0.05) and their regression relations were respectively (r = 0.525), (r = 0.4802), (r = 0.4577), while there was not a significant correlation between ash, fiber, carbohydrate content and weight (P>0.05). On the whole, as the fish weight increased, the rate of body moisture and fat increased, but the rate of body protein decreased.