A Study on Feeding Strategy of Young Rainbow Trout (Oncorhynchus mykiss Walbaum)

In this study, the effects of different feeding strategies on growth and food conversion ratio of young rainbow trout (Oncorkynchus mykiss) in summer and autumn were determined. At the experiment, seven hundred and fifty rainbow trout with 13.44 cHata! Yer isareti tanimlanmamis.2.40 g weight and 10.80 c0.67 cm (n=225) length hatched in February 2006 were used. The fish were divided at random into triplicate five groups of 50 fish per tank, diameter 90 cm. The experiment was made between 27 July and 03 November (100 days). The groups set up as control (G sub(Kont)). only first a week fasting (G sub(1hf)), no feeding on Wednesday and Sunday (G sub(CsPz)), no feeding on Saturday and Sunday (G sub(CtPz)) and feeding every other day (G sub(+-)). End of the study, mean (csd) weights and food conversion ratios of groups were determined as 37.98c0.64 g and 1.21c0.11; 37.14 c0.40 g and 1.19 c0.09; 38.05 c2.30 g and 1.06 c0.04; 38.94 c1.59 g and 1.14 c0.09; and 3238 c0.42 g and 149 c0.27, respectively. The group G sub(+-)was slowly grown significantly than the others, and shoved higher food conversion ratio value than G sub(CsPz) and G sub(CtPz) groups (P