Comparison of Rainbow Trout (Oncorhynchus mykiss) and Brown Trout (Salmo trutta ssp) Dual Culture in Different Ratios and Growth Performances

Examination of Behavioral Traits of Monocultures and Polycultures of Two Different Trout Species (Oncorhynchus mykiss, Salmo trutta ssp.) at Different Ratios Depending on Various Factors

“…On the other hand, when the behavioral differences in rainbow trout were evaluated in the present study, it is determined that behavioral differences occurred in the mobility rates of the fish in the tank, the area used vertically by the fishes in the tank, and the duration of the feed consumption of fishes. Indeed, in our publication containing other results of the same experiment, where the data on growth and feed evaluation conducted in detail, Karataş et al (2017) reported that the feed consumption amounts and growth rates of brown trout in all polyculture groups increased comparing to monoculture of brown trout due to feed competition between fish. Karataş et al (2017) recommended especially the R66B34 group along with other polyculture groups rather than the monoculture of brown trout to fish farmers for rapid growth of brown trout.…”

“…Indeed, in our publication containing other results of the same experiment, where the data on growth and feed evaluation conducted in detail, Karataş et al (2017) reported that the feed consumption amounts and growth rates of brown trout in all polyculture groups increased comparing to monoculture of brown trout due to feed competition between fish. Karataş et al (2017) recommended especially the R66B34 group along with other polyculture groups rather than the monoculture of brown trout to fish farmers for rapid growth of brown trout. This is because, when this ratio of polyculture was applied, brown trout's comfortable behavior like rainbow trout reduced the stress of brown trout and increased feed competition and feed consumption.…”

“…This is because, when this ratio of polyculture was applied, brown trout's comfortable behavior like rainbow trout reduced the stress of brown trout and increased feed competition and feed consumption. In addition, in the study of Karataş et al (2017), where monoculture and polyculture of rainbow trout and brown trout were experimented, it was reported that the highest amount of final product was observed in monoculture of rainbow trout. Therefore, they recommended monoculture of rainbow trout rather than polyculture of rainbow trout with brown trout to the fish farmers who desires the largest amount of final product.…”

Effect of density and mixed culture of largemouth bass (Micropterus salmoides) and pikeperch (Sander lucioperca) on growth, survival and feed conversion rate in intensive culture

“…The use of polyculture in the RAS with similar requirements for the environment and with different behaviour, swimming and feeding activity offers a great potential to more effectively use the capacity of this kind of aquaculture (Thomas et al 2020). The applications of bicultural intensive aquaculture in the RAS have already been studied and tested for brook trout (Salvelinus fontinalis) with black sea trout (Salmo labrax) (Bascinar et al 2010), Abant trout (Salmo abanticus) with brook trout (Onder and Khan 2016), rainbow trout (Oncorhynchus mykiss) with brown trout (Salmo trutta) (Karatas et al 2017) and rainbow trout with Siberian sturgeon (Acipenser baerii) (Ak et al 2019).…”