Abstract
The aim of this study was to compare the effectiveness of introducing soybean or linseed oil to feed mixtures for turkey hens based on the evaluation of their production effects and
changes in their selected blood parameters. The experiment was carried out on 240 turkey hens of Big 6 line, aged from 1 up to 16 weeks. The birds were assigned to two groups, 120 turkeys each. Turkey hens from group I received a soybean oil addition to their feed mixtures, while the source of fat to birds from group II was linseed oil. In the 15th week of turkey hens rearing, their blood was sampled and hematological parameters (the number of WBC and RBC, Ht value and Hb concentration) as well as the levels of selected anti- and pro-oxidative parameters were determined. After the rearing, the birds were slaughtered, and their carcasses were subjected to slaughter analysis. The results obtained indicate that the application of linseed oil as the source of fat improved the rearing effects of turkey hens only to a slight extent, and effected beneficial changes in the parameters of antioxidative defense (increase of the total anti-oxidative potential, FRAP). In the turkey hens receiving linseed oil, a significant decrease in the concentration of MDA and H2O2 was recorded additionally, which indicates the inhibiting influence of this additive on the intensiveness of lipid peroxidation process.
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