TURKISH JOURNAL OF VETERINARY & ANIMAL SCIENCES, vol.27, no.5, pp.1077-1084, 2003 (SCI-Expanded)
D1, D2 and D3 diets containing 15.5, 12.5 and 9.0 MJ kg(-1) digestible energy concentrations were offered to rainbow trout (Oncorhynchus mykiss Walbaum, 1792), and the rates of gastric evacuation and feed intake were determined. Gastric evacuation determinations were achieved by slaughtering eight fish every 6 h until no residue was found in the cardiac stomach. Return of appetite experiments were conducted by re-feeding groups of trout every 6 h following the first feeding. The data provided from each process was modelled by regression analysis and compared statistically.