Rainbow trout (Oncorhynchus mykiss) fingerlings were reared for 2 months under one of two different feeding regimes (‘one and two diurnal peaks’) and under a constant feeding regime as a control in order to find out if it is possible to fit the feeding to the assumed circadian rhythm. The differences in the specific growth rates observed between the different feeding treatments were not significant, but the ‘tank-effect’ and the effect of the genetic background of the fish were highly significant. The conclusion that no beneficial effects are achievable through alteration of the feeding regime and the significance of a possible genotype-feeding-regime interaction are discussed.
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Mäkinen, T. Effect of feeding schedule on growth of rainbow trout. Aquacult Int 1, 124–136 (1993). https://doi.org/10.1007/BF00692616
- Rainbow trout
- Circadian rhythm
- Feeding regime
- V.I. tags