Published in Scientific Papers. Series D. Animal Science, Vol. LXVII, Issue 1
Written by Săndița PLĂCINTĂ, Mirela CREȚU, Marian Tiberiu COADĂ, Floricel Maricel DIMA, Elena SÎRBU, Maria Cristina CHIOVEANU
This study aimed to evaluate the influence of the protein level from fish feed on the growth dynamics, hematological profile, and meat biochemical composition of juvenile European catfish, Silurus glanis (Linnaeus, 1758). In this context, 508 juvenile European catfish, with an average weight of 33±1.80 g/fish, were reared in a recirculating aquaculture system (RAS). Fish were fed with two different proteins: VE 41- fish feed with 41% protein content, and VE 50- fish feed with 50% protein content. After 35 days, the results regarding the growth performance revealed a better feed conversion ratio (FCR-1.03 g/g) and specific growth rate (SGR - 2.02 %/day) in the VE50P. Also, fish meat's hematological profile and biochemical composition showed a similar trend. In conclusion, the fed protein content plays an essential role in the digestibility and efficiency of nutrient utilization, on the welfare and nutritional quality of the final product.
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