Journal of Fisheries Science and Technology

Journal of Fisheries Science and Technology

Effect of vitamin E on growth performance, survival rate and hematological parameters in rainbow trout (Oncorhynchus mykiss)

Authors
1 Department of Fisheries, Gorgan University of Agricultural Sciences and Natural Resources,sari- Iran.
2 Department of Fisheries, khoramshar University of Marian science and technology ,khoramshar- Iran
Abstract
A 9-week feeding trial was conducted to determine the effect of dietary vitamin E levels (0, 100, 200 and 1000 mg kg diet) on the growth performance and hematological indices in rainbow trout (Oncorhynchus mykiss) fingerlings (initial weight of 2.1 ± 0.1). Results indicated significant effect (p<0.05) of vitamin E levels on the fish growth performance. In terms of hematological indicators, vitamin E levels significantly affected the hematocrit, hemoglobin, red blood cell (RBC) count, monocyte and eosinophil in rainbow trout. However, it did not change MCHC, lymphocyte and MCH values.
Keywords