Effects of Dietary Olive Pomace Oil on Growth Performance, Some Immune Parameters and Disease Resistance (Lactococcus garvieae) of Rainbow Trout (Oncorhynchus mykiss)
Abstract
The present study investigated the effects of supplementation pomace oil on growth performance, some immune parameters and disease resistance of rainbow trout (Oncorhynchus mykiss). In trial, 360 rainbow trout, which had average weight of 12.10 ± 0.13, was used. In the experiment, totally 4 group were formed including control group, pomace group 1 (12% fish oil + 4% olive pomace oil), pomace group 2 (8% fish oil + 8% olive pomace oil) and pomace group 3 (4% fish oil + 12% olive pomace oil). Fish were fed experimental diets for 60 days. It was observed that centaury oil in different ratios added to the diet did not cause any difference in the amount of growth parameters in fish. Olive pomace oil did not have a negative effect on serum biochemistry and immunological parameters. These results indicate that olive pomace oil supplementation significantly increased the immune responses and makes O. mykiss more resistant to infection by L. garvieae.
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