title: Effect of feeding system and breed on growth performance, and carcass and meat quality traits in two continental beef breeds.
abstract: A total of 100 young bulls were allotted a 2 × 2 factorial arrangement of treatments to determine the effect of the feeding system (concentrate and wheat straw: T; total mixed ration comprised of the same concentrate, maize silage and wheat straw: TMR) and breed (Limousine: LI; Retinta: RE) on growth performance, carcass characteristics and meat quality. The diets were administrated ad libitum for 193 days. The average daily weight gain was similar (P > 0.05) for both diets, while the LI bulls grew significantly (P < 0.05) more than RE. T bulls showed higher L*, a* and rib bone percentage. TMR bulls showed higher carcass yield, conformation and fatness, and greater changes in ultrasound measurements, except Δ UGMD and rib fat percentage. Instrumental meat quality, except shear force at 1 and 21 days of ageing, was not affected (P > 0.05) by the diets. Breed significantly affected most of the analyzed characteristics.
authors.affiliation: Departamento de Producción Animal, Universidad de Córdoba, Ctra. Madrid, Cádiz Km. 396-a, 14071 Córdoba, Spain. Electronic address: v92avrac@uco.es.
authors.forename: C
authors.initials: C
authors.lastname: Avilés
authors.affiliation: Departamento de Producción Animal, Universidad de Córdoba, Ctra. Madrid, Cádiz Km. 396-a, 14071 Córdoba, Spain.
authors.forename: A L
authors.initials: AL
authors.lastname: Martínez
authors.affiliation: Departamento de Producción Animal, Universidad de Córdoba, Ctra. Madrid, Cádiz Km. 396-a, 14071 Córdoba, Spain.
authors.forename: V
authors.initials: V
authors.lastname: Domenech
authors.affiliation: Departamento de Producción Animal, Universidad de Córdoba, Ctra. Madrid, Cádiz Km. 396-a, 14071 Córdoba, Spain.
authors.forename: F
authors.initials: F
authors.lastname: Peña
mesh_terms: D000273:Adipose Tissue / Q000378:metabolism; D000821:Animal Feed; D000822:Animal Husbandry / Q000379:methods*; D000818:Animals; D001823:Body Composition; D001842:Bone and Bones; D001947:Breeding; D002417:Cattle; D003116:Color; D004032:Diet; D002523:Edible Grain; D006801:Humans; D008297:Male; D018482:Muscle, Skeletal; D000069466:Red Meat / Q000032:analysis* / Q000592:standards; D012820:Silage; D013314:Stress, Mechanical; D014908:Triticum; D015430:Weight Gain; D003313:Zea mays
keywords: Cereal straw; Concentrate; Limousine; Retinta; Total mixed ration