title: Effects of genotype and dietary oil supplementation on performance, carcass traits, pork quality and fatty acid composition of backfat and intramuscular fat.
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.
authors.affiliation: Embrapa Suínos e Aves, BR 153, KM 110, Vila Tamanduá, 89700-000, Concórdia, SC, Brazil. teresinha.bertol@embrapa.br
authors.forename: T M
authors.initials: TM
authors.lastname: Bertol
authors.forename: R M L
authors.initials: RM
authors.lastname: de Campos
authors.forename: J V
authors.initials: JV
authors.lastname: Ludke
authors.forename: N N
authors.initials: NN
authors.lastname: Terra
authors.forename: E A P
authors.initials: EA
authors.lastname: de Figueiredo
authors.forename: A
authors.initials: A
authors.lastname: Coldebella
authors.forename: J I
authors.initials: JI
authors.lastname: dos Santos Filho
authors.forename: V L
authors.initials: VL
authors.lastname: Kawski
authors.forename: N M
authors.initials: NM
authors.lastname: Lehr
mesh_terms: D000273:Adipose Tissue / Q000378:metabolism*; D000818:Animals; D029741:Brassica rapa; D001947:Breeding; D003116:Color; D004041:Dietary Fats / Q000378:metabolism*; D019587:Dietary Supplements; D005227:Fatty Acids / Q000235:genetics / Q000378:metabolism; D005229:Fatty Acids, Monounsaturated / Q000378:metabolism; D019597:Flax; D005838:Genotype; D008043:Linseed Oil / Q000378:metabolism; D008460:Meat / Q000032:analysis*; D018482:Muscle, Skeletal / Q000378:metabolism; D010938:Plant Oils / Q000378:metabolism*; D000074262:Rapeseed Oil; D013314:Stress, Mechanical; D013552:Swine
chemical_list: D004041:Dietary Fats; D005227:Fatty Acids; D005229:Fatty Acids, Monounsaturated; D010938:Plant Oils; D000074262:Rapeseed Oil; D008043:Linseed Oil