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Mas G.,UPB Espana SA | Llavall M.,UPB Espana SA | Coll D.,UPB Espana SA | Roca R.,Grupo Omega de Nutricion Animal S.L. | And 4 more authors.
Meat Science | Year: 2011

Fifty-seven York-crossed barrows and gilts were fed either a grain and soy diet (CONTROL with 28% C18:1) or a similar diet enriched with oleic acid (HO with 43% C18:1, Greedy-Grass OLIVA®). There were no interactions between dietary treatment and gender and there were no differences in intramuscular and subcutaneous fatty acid composition between sexes (P > 0.05). Similar primal cut yields, composition of major primal cuts, and carcass and meat quality characteristics were found for HO and CONTROL fed pigs. Apart from a few significant but small differences for some fatty acids, intramuscular fatty acid composition was similar for both dietary treatments. Subcutaneous fat from HO fed pigs had a 6.9% increase in total monounsaturated fatty acids and a 9.3% reduction in total polyunsaturated fatty acids (P < 0.05) compared with CONTROL fed animals, without adversely affecting carcass quality and producing suitable hams for processing by the meat industry. © 2011 Elsevier Ltd. Source


Mas G.,UPB Espana SA | Llavall M.,UPB Espana SA | Coll D.,UPB Espana SA | Roca R.,Grupo Omega de Nutricion Animal S.L. | And 4 more authors.
Meat Science | Year: 2010

Fifty-one (Landrace*Large White)*Pietrain barrows and gilts were used to compare the effect of a diet rich in oleic acid (HO) by feeding a by-product of the olive industry (Greedy-Grass OLIVA®: 1.4% growing, 3.8% finishing) or a grain and soy diet (CONTROL) on carcass characteristics, meat quality and fatty acid profile of intramuscular and subcutaneous fat. Gilts had leaner (P< 0.05) carcasses with lower fat percentage in major primal cuts, and less (P< 0.05) saturated fat compared with barrows with no interaction (P> 0.05) between dietary treatment and gender. Source of dietary fat had no effect (P> 0.05) on primal cut yields, composition of major primal cuts, or carcass and meat quality characteristics. Intramuscular fat from HO fed pigs had higher (P< 0.05) percentage of saturated (SFA) and monounsaturated (MUFA) fatty acids, and lower (P< 0.05) polyunsaturated fatty acids (PUFA) and n-6:. n-3 ratio compared with CONTROL animals (37.4% vs. 36.8%, 44.7% vs. 40.1%, 17.9% vs. 23.2%, and 18.9 vs. 21.8 ratio, respectively). Subcutaneous fat from pigs fed HO had greater (P< 0.05) MUFA percentage, lower (P< 0.05) SFA and PUFA percentage, and lower (P< 0.05) n-6:. n-3 ratio than pigs fed CONTROL diet (51.4% vs. 48.0%, 30.5% vs. 32.9%, 18.1% vs. 20.1%, and 9.83 vs. 11.3 ratio, respectively). Intramuscular fat had higher proportion of SFA and lower of MUFA showing a higher degree of tissue saturation compared with subcutaneous fat. Feeding Greedy-Grass increased MUFA and decreased PUFA proportions in fat depots reducing the risk of production of carcasses that are soft and oily which result in lower technological and processing quality. © 2010 Elsevier Ltd. Source

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