Effects of a natural hepatomodulator (Bedgen 40(TM)AS) on the growth performance, body indices, hematological and histological parameters of rainbow trout (Oncorhynchus mykiss) juveniles

The present study aimed to evaluate the possible effects of a natural hepatomodulator on growth; some biological, blood, and color parameters; body; cost analysis; and liver histology of rainbow trout. A commercial rainbow trout diet was used for the control group, and 500 mg kg(-1) of commercial additive was used for the treatment group. The experiment was carried out for 12 weeks. At the end of the experiment, there was no significant effect on growth or biological and some blood parameters (P > 0.05); however, significant skin brightness changes (P < .05) were observed on the fish. Also, liver sections of the fish fed with the control diet showed a high proportion of lipid accumulation on hepatic parenchyma compared to fish that were fed treated diets. These results showed that application of commercial artichoke extract to rainbow trout diets might have positive effects on outer skin colorization and liver fat accumulation.

Automated summary

The present study aimed to evaluate the effects of a natural hepatomodulator on rainbow trout. The results showed that the hepatomodulator might have positive effects on the skin coloration and liver fat accumulation of the fish.