Effect linseed and fish oil supplements in feed on fatty acid profile and intramuscular fat oxidation in rabbits
2011
Kowalska, D. | Bielanski, P. | Chelminska, A.,Instytut Zootechniki, Krakow (Poland).
The objective of the research performed was to determine the effect of 3 percent linseed, 3 percent fish oil, and one antioxidant added to feed on the fatty acid profile, content of cholesterol and vitamin E in the lipids of rabbit meat. The research project comprised the offspring of 50 New Zealand White rabbit does. The rabbits in the control group(I)were fed a balanced, complete standard rabbit feed mixtures. The animals from the control group II and III were fed a feed with 3 percent linseed oil added; the feed for the rabbits from the group III contained a 100 percent higher supplement of vitamin E as a natural antioxidant. The animals from the groups IV and V were fed a feed with 3 percent fish oil added; the feed for the group contained a higher content of vitamin E added. The 3 percent supplement of linseed and fish oil caused the content of n-3 polyunsaturated fatty acids to increase. The research proved a significant effect of the linseed and fish oil supplements on the total content of cholesterol in the rabbit meat. A significant increase in the content of vitamin E was found in the analyzed muscles of rabbits in the experimental groups, and a decrease in content of malondialdehyde (TBARS)
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