Effects of genotype and dietary oil supplementation on performance, carcass traits, pork quality and fatty acid composition of backfat and intramuscular fat
2013
Abstract A 42-day study was conducted to evaluate the effect of genotype: terminal sire line Duroc × F1 (DC×F1); terminal sire line Embrapa MS-115 × F1 (MS-115×F1); and MS-115 × Moura (MS-115×MO) and three dietary oil sources: soybean; canola; and canola + flax, on performance, carcass traits, pork quality, and fatty acid composition. Genotype affected the technological quality of pork and fatty acid profile. MS-115-sired pigs had better meat color and Duroc-sired pigs had higher intramuscular fat content, more saturated fat and better omega-6/omega-3 ratio. Moura breed influenced positively meat tenderness and intramuscular fat. Diet did not affect the technological quality of the meat. Canola or canola + flax oil diet supplementations increased monounsaturated and C18:3 and decreased C18:2 fatty acids, reducing the omega-6/omega-3 ratio. The best omega-6/omega-3 ratio was obtained through supplementation with canola + flax.
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