Abstract
A note on the effect of feeding different fats during the growing period on the final fatty acid composition of back fat in pigs
Highlights
Fat added to rations increases their energy value and may be a source of essential unsaturated fatty acids (EUFA)
A higher EUFA concentration in back fat is a favourable trait from the point of view of dietetic value for humans, but it lowers its quality as a raw material for processing
- technical animal fat, - double low rape seed oil with low erucic fatty acid content, - fat with a 15% EUFA content (TW-15), - fat with a 10% EUFA content (TW-10)
Summary
Fat added to rations increases their energy value and may be a source of essential unsaturated fatty acids (EUFA). The composition of the diet, especially the quality of the added fat, can be a factor modifying the fatty acid composition of the storage fat of pigs. Saturated fatty acids (e.g., from animal fat) is not accompanied by their increased deposition (Oslage, 1984; Ziolkowski et al, 1994). A higher EUFA concentration in back fat is a favourable trait from the point of view of dietetic value for humans, but it lowers its quality as a raw material for processing. The objective of the study was to examine the effect of fats with various fatty acid profiles added to rations during the growing period, i.e. up to 60 kg liveweight of pigs, on the fatty acid composition of back fat at the end of fattening
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