title: Production system and slaughter age effects on intramuscular fatty acids from young Tudanca bulls.
abstract: Thirty-three young bulls from Tudanca local breed were used to investigate the effect of two production systems (semi-extensive vs. intensive) and two slaughter ages (12 vs. 14months) on meat fatty acid (FA) composition. Longissimus thoracis from semi-extensive animals had a lower percentage of intramuscular fat (p≤0.001), saturated FAs (p≤0.05), trans-18:1 (p≤0.001), n-6/n-3 ratio (p≤0.001) and a higher percentage of branched chain FAs (p≤0.001), polyunsaturated FAs (p≤0.001) and conjugated linoleic acid (CLA) (p≤0.001). Few differences were observed in FA composition between slaughter ages. Hence, meat from semi-extensive animals slaughtered at 12 or 14months displayed a healthier FA profile from a consumer's point of view.
authors: Centro de Investigación y Formación Agrarias (C.I.F.A.), Gobierno de Cantabria, C/Héroes 2 de mayo, 27, 39600, Muriedas, Cantabria, Spain. mariajosehumada@cifacantabria.org
authors: M J
authors: MJ
authors: Humada
authors: E
authors: E
authors: Serrano
authors: C
authors: C
authors: Sañudo
authors: D C
authors: DC
authors: Rolland
authors: M E R
authors: ME
authors: Dugan
mesh_terms: D000003:Abattoirs / Q000592:standards; D000821:Animal Feed; D000818:Animals; D001947:Breeding; D002417:Cattle; D003258:Consumer Behavior; D004032:Diet / Q000662:veterinary; D004041:Dietary Fats; D005511:Food Handling / Q000379:methods*; D044243:Linoleic Acids, Conjugated / Q000032:analysis*; D008297:Male; D008460:Meat / Q000032:analysis*; D018482:Muscle, Skeletal / Q000737:chemistry*
chemical_list: D004041:Dietary Fats; D044243:Linoleic Acids, Conjugated; C046938:9,11-linoleic acid