Effect of Body Size and Condition Factor on Proximate Composition of Clarias batrachus Under Different Concentration of Ammonia
2025
Zara Naeem | Amina Zuberi | Muhammad Ali | Ammar Danyal Naeem | Muhammad Naeem
This study is focused on examining the proximate body composition (water, fats, proteins, and ash) ofnbsp;Clarias batrachus, exposed to different concentrations of ammonia. Fish were kept in different groupsnbsp;with ammonia concentrations of 0 mg/L (T-0), 0.25mg/L (T-I), 0.5mg/L (T-II), 0.75mg/L (T-III), andnbsp;1mg/L (T-IV) for 3 months. At the end of the trial, a total of 50 samples of C. batrachus (10 from eachnbsp;treatment group) were taken to analyze the body composition. Mean (±SE) values of water, ash, fat, andnbsp;protein contents in % wet body weight of C. batrachus were found 77.07±0.80% to 82.23±0.55%,nbsp;2.98±0.03%to 3.34±0.17%, 3.90±0.19% to 4.58±0.30% and 10.53±0.40 to 15.36±0.56 in the differentnbsp;studied treatment groups. Water and protein contents were significantly (Plt;0.05) affected by the exposurenbsp;of ammonia to C. batrachus. Significantly highest level of protein content was found in the fish groupnbsp;which was not treated with ammonia exposure (T-0). Whereas ash and fat contents showed no significantnbsp;(Pgt;0.05) difference between the ammonia-treated groups and the control group. Regression analysisnbsp;showed a clear effect of fish size on water and protein contents in C. batrachus reared in differentnbsp;treatment groups. While ash was found correlated only in T-0 (plt;0.001; r=0.939), and fat in T-0nbsp;(plt;0.001; r=0.929) and T-III (plt;0.05; r=0.636). However, the condition factor remained constant with thenbsp;proximate composition of C. batrachus. This study would be helpful in the measurement of the bodynbsp;composition of fishes with the size of fishes affected by different concentrations of ammonia to analyzenbsp;the nutritional value of C. batrachus.
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