Metabolic parameters of laying hens and production of eggs after supplementation of food ration with higher content of PUFA from flax and fish oil
Vasko, L.(Univerzita veterinarskeho lekarstva, Kosice (Slovak Republic) | Tuckova, M. | Kastel, R.
The effect of different profiles of fatty acids in the diet, where omega 3 polyunsaturated fatty acids (PUFA) were supplemented from flax and fish oil with addition of alpha-tocopherolacetate on the serum levels of VLDL, triglycerides, total cholesterol, HDL, glucose, total proteins, total lipids, alpha-tocopherol and fatty acids was observed in laying hens. As well, the weight gains of laying hens, egg yield, and content of the given parameters in the egg yolk were observed. The control group of laying hens was given the diet rich in saturated and monounsaturated fatty acids (MA). In the experimental laying hens there was a significant increase in their weight, concentrations of triglycerides, eicosapentanoic acid, docosahexanoic acid in the egg yolk in the group supplemented with flax oil. Concentrations of cholesterol, glucose in the egg yolk significantly decreased in the groups with supplementation of flax and fish oil. In the group given flax oil, there was a significant decrease in the total lipids. A significant increase in the mean weight of an egg occurred in laying hens of both experimental groups. No influence of flax and fish oil on the concentration of alpha-tocopherol in the egg yolk was found. The concentrations of omega-3 MA: alpha-linolenic, eicosapentanoic and docosahexanoic acids were significantly increased in the blood of experimental laying hens after administration of omega-3 PUFA in flax and fish oil compared to the control group.
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