CHARACTERISTICS OF LIPIDS FROM IMMUNOCASTRATED MEDIUM-HEAVY PIGS FED EITHER A RESTRICTED DIET OR AD LIBITUM
AbstractWe studied the feeding level-related variations in lipid characteristics in the adipose tissues of pigs. The lipid content, fatty acid profile, oxidative stability, iodine value, thrombogenic and atherogenic indices were determined in individual samples from 24 immunocastrated males (Duroc x Large White), fed either restricted or ad libitum. In backfat, feed restriction increased the polyunsaturated fatty acid proportion and iodine value and lowered the thrombogenic and atherogenic indices. Intramuscular lipid content was reduced by restriction, which did not affect either the fatty acid composition or the oxidative stability in both raw and cooked muscle. Feed restriction improved the nutritional quality of lipids without impairing their technological attributes.
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