Utilization of marine fisheries wastes for the production of the freshwater fish Cyprinus carpio
2019
Muttharasi, C. | Muralisankar, T. | Uthayakumar, V. | Gayathri, V. | Thangal, S. H. | Anandhan, K.
The present study was aimed to assess the effects of complete replacement of fish meal with fisheries waste meals on survival, growth performance, digestive enzyme activities, and muscle compositions of the freshwater fish Cyprinus carpio. The proximate composition and mineral contents of three different fisheries wastes, such as Rastrelliger kanagurta, Sphyraena barracuda, and Fenneropenaeus indicus were analyzed. Based on the nutrient content of these fisheries waste, one control fish meal diet and three different complete fish meal replacement diets (diet 1, diet 2, and diet 3 formulated with R. kanagurta, S. barracuda, and F. indicus waste meals, respectively) were formulated. Fingerlings C. carpio were fed with these diets for a period of 6 weeks. Results from feeding experiments showed insignificant (p > 0.05) differences in survival, growth, and feed intake of C. carpio fed with control and three different fisheries waste diets. However, the digestive enzyme activity and muscle biochemical compositions were significantly (p < 0.05) altered in F. indicus waste meal fed C. carpio compared to other fisheries waste meal and control diets fed fish groups. Therefore, the present study suggests that R. kanagurta, S. barracuda, and F. indicus waste meals can be considered as alternative feed ingredients for fish meal to formulate low-cost feeds for C. carpio culture.
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