title: Effect of feeding partially hydrogenated lard on trans-fatty acid content of muscle and backfat of heavy pigs.
abstract: The incorporation of fat in diets for heavy pigs may be necessary in order to increase their energy intake in the finishing period. Lard may be a good lipid source but it contains 10-13% of linoleic acid, which makes the subcutaneous fat less suitable for long term curing of raw ham. Partial hydrogenation of lard decreases linoleic acid content, but increases trans-fatty acid content. This trial involved two groups of pigs of 114kg live weight, fed for the last two months before slaughter with diets containing 3% lard (L) or 3% partially hydrogenated lard (PHL). The PHL contained about 10% trans-fatty acids and 2.5% linoleic acid. Rearing performance and carcass characteristics were unaffected by treatment. The group fed PHL showed a lower percentage of linoleic acid in the backfat (PHL 12.28% vs. L 13.04%) and a higher percentage of C18:1 trans-fatty acids both in backfat (0.5% vs. 0.06%) and in intramuscular fat (0.2% vs. 0.04%).
authors: C.R.A. Istituto Sperimentale per la Zootecnia, Sezione Operativa di Modena, Via Beccastecca 345, 41018 S. Cesario sul Panaro (MO), Italy.
authors: D
authors: D
authors: Bochicchio
authors: V
authors: V
authors: Faeti
authors: G
authors: G
authors: Marchetto
authors: E
authors: E
authors: Poletti
authors: M
authors: M
authors: Maranesi
authors: A L
authors: AL
authors: Mordenti
authors: G
authors: G
authors: Della Casa