The comparison of fatty acids profile in adipose tissue of pigs with regard to the differently enriched feed with unsaturated fatty acids

This paper deals with a comparison of the profile of fatty acids in adipose tissue pigs with regard to the differently enriched feed of unsaturated fatty acids. In the theoretical part, the issue is handled using professional literature, supplemented by chapters dealing with the digestive system and digestion. In the practical part, the experiment was conducted. The experiment was performed at the pig breeding test station at Ploskov near Lány. The experiment included 72 pieces of slaughter pigs of balanced sex (36 barrows and 36 gilts) final hybrid combinations DanBred. This paper presents a methodology, under which the test was performed. The pigs were included in the test in the average weight of 29.2 kg and the average age of 70 days. The pigs were fed with a complete feed mixture. The pigs were according on diet divided into six experimental groups with supplemented 4% oil (rapeseed and soybean) and one control group without added oil. In experimental groups were incorporated oil into the feed mixture, for a period of 6, 4 and 2 weeks prior to slaughter. Age and average slaughter weight of pigs at the end of the fattening period was 152 days and 115.8 kg. From the measurement results, it can be stated that the resulting interaction between the time of application and the type oil used by the addition of has been found in the content of palmitic acid, linoleic acid and alfa linolenic acid, n3 PUFA and n6 PUFA and the ratio of n3 and n6 PUFA and also in oxidation stability, carried out immediately after thawing. Finally, it is possible to say that the profile of fatty acids contained in the feed is reflected in the profile of fatty acids in adipose tissue. When the rapeseed oil was fed the content of MUFA increaset and when the soybean oil was fed the content of PUFA increaset in the adipose tissue. Time of feeding fatty acids had no content great influence. Thus, from economic point of view the best option seems to be the addition of soybean oil in the diet two weeks before slaughter