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Fillet yield and fat content in common carp (Cyprinus carpio) produced in three Austrian carp farms with different culture methodologies


Author’s address: Christian Bauer, Federal Agency of Water Management, Ökologische Station Waldviertel, Gebharts 33, A-3943 Schrems, Austria.
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The fat content and fillet yield of common carp (Cyprinus carpio) from three carp farms were investigated with respect to pond management and overall climatic conditions. The mean fat content of the trimmed fillet varied from 2.7 to 6.9% and differed significantly among the three facilities (P < 0.001). It is suggested that differences in the fillet fat content may be based on the climatic conditions as well as the different management strategies (feeding, stocking biomass). The mean fillet yield was calculated as 34.0–39.0%. No significant correlation between fish weight and fillet yield (ρ = −0.16) was found. Results suggest that producing smaller fish for fillets of serving size may lead to a higher production and conclude with lower production risks and costs.