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Polyunsaturated fatty acids (PUFA) are essential for the development of the nervous system in animals. It is known that pigs are good models for human in many aspects. The aim of the study was to investigate how fat content and FA composition in sows' diet influence FA composition in brain of newborn and in liver and brain of one-day-old piglets, respectively. High fat (6 %) feeds were designed with regard to saturated or polyunsaturated fat content and n-6/n-3 ratio by adding either oats rich in linoleic acid (LA) or linseed oil rich in alpha-linolenic acid (ALA). The ratio n-6/n-3 PUFA was 11 in all three diets (the low fat (3 %), high fat saturated and high fat oats diet), while the ratio in the linseed oil diet was 2. Increased proportion of ALA in the diet increased ALA and eicosapentaenoic acid (EPA) in piglets' neutral and polar liver lipids and the long chain PUFA, EPA, docosapentaenoic and docosahexaenoic acid in piglet brain. The results suggest that transport of n-3 PUFA from sow to piglet was higher via milk than via bloodstream in the uterus and that increased content of ALA in sows' feed led to an increased accumulation of n-3 FA in piglets' liver and brain.

Fatty Acid Transfer From Sow to Piglet Differs for Different Polyunsaturated Fatty Acids (PUFA)