MAINTENANCE STATUS OF RAINBOW TROUT (ONCORHYNCHUS MYKISS) REARED IN RECIRCULATING SYSTEM AND IN EARTH PONDS

M.D. Popa, Magdalena Tenciu, N. Patriche, Elena Mocanu, Viorica Savin, Desimira Stroe

Abstract
   The aim of this study is the comparative analysis of the anatomical components and the biochemical profile of one-year-old Oncorhynchus mykiss specimens, reared in recirculating system and in earth ponds. The analysis was performed by portioning the biological material in the main anatomical sections, followed by determining the biochemical parameters (moisture, ash, proteins and lipids), through standard methods of analysis corresponding to each parameter. Rainbow trout reared in a recirculating system has the meat percentage by 8.43%, the protein percentage by 19.93% and the fat percentage by 26.29% higher, compared to the rainbow trout reared in earth ponds. Rearing rainbow trout in a recirculating system is advantageous both due to the high production and the high quality of its biological value.