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Effects of adding porcine trypsin enzyme supplement to the diet of common carp (Cyprinus carpio) on growth, body composition, blood biochemical indices, and intestinal enzyme activity
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Ali Khosravanizadeh *   , Abdolali Rahdari , Hashem Khandan Barani |
| Department of Aquatic sciences, Hamoun International Wetland Institute, Research Institute of Zabol, Zabol, Iran, Department of Aquatic sciences, Hamoun International Wetland Institute, Research Institute of Zabol, Zabol, Iran. , akhosravanizadeh@gmail.com |
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Abstract: (54 Views) |
Introduction: The global surge in population has intensified the demand for protein sources, particularly from aquaculture. While fish farming has seen significant growth, challenges such as resource constraints and escalating production costs persist. This study was designed to evaluate the efficacy of dietary supplementation with porcine trypsin enzyme in enhancing growth performance and improving digestive system functionality in common carp (Cyprinus carpio(.
Materials and Methods: A total of 120 common carp, averaging 15.45±0.12 g in initial body weight, were randomly allocated into four experimental groups. The fish were fed dietary regimens containing varying levels of trypsin (0.01%, 0.02%, and 0.04%) over a period of eight weeks. Subsequently, various growth parameters, blood biochemical indices, and intestinal enzyme activity were measured.
Results and Discussion: The results demonstrated that the inclusion of trypsin in the diet significantly enhanced growth performance, leading to increased body weight and improved feed conversion ratio (p<0/05). The optimal concentration of trypsin was determined to be 0.02%. While dietary supplementation with the enzyme did not significantly affect the proximate composition of the fish (p>0/05), it led to a slight increase in trypsin activity in the intestine (p>0/05). Finally, the blood biochemical parameters, including glucose, total protein, albumin, globulin, and blood urea nitrogen, did not exhibit significant differences among the various treatment groups (p>0/05).
Conclusion: The findings of this study demonstrated that dietary supplementation with trypsin can effectively enhance the growth performance of common carp. Furthermore, it may serve as a sustainable strategy for optimizing aquaculture production and reducing feed costs.
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| Keywords: Growth, Feed Conversion Ratio, Trypsin, Protein, Digestion, Gastrointestinal System |
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Type of Study: Research |
Subject:
Special
Received: 2025/02/4 | Accepted: 2025/03/14 | Published: 2025/09/23
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