title: Impact of ground soybean and starch levels on the quality of meat from feedlot young Nellore bulls.
abstract: Twenty-eight young Nellore bulls (395±32kg initial body weight) were assigned to a completely randomized design (2×2 factorial design with 7 animals per treatment) to evaluate effects on the quality of meat. Diet treatments consisted of high (about 25%) or low (about 16%) starch levels, with or without ground soybean addition. Shear force was decreased in the meat from animals fed a low-starch diet (P=0.0016). Meat from animals fed a high-starch diet had increased total concentrations of unsaturated (P=0.0029) and monounsaturated fatty acids (P=0.0253). Polyunsaturated fatty acid content increased in the meat from animals fed a diet containing soybean (P=0.0121). High starch diets (>25%) decreased the concentration of saturated fatty acids and increased the amount of unsaturated fatty acids in the meat from young Nellore bulls.
authors.affiliation: Animal Science Department, Universidade Estadual Paulista Julio de Mesquita Filho (Unesp), Campus Jaboticabal, CEP 14884-900 Jaboticabal, SP, Brazil.
authors.forename: L G
authors.initials: LG
authors.lastname: Rossi
authors.affiliation: Animal Science Department, Universidade Estadual Paulista Julio de Mesquita Filho (Unesp), Campus Jaboticabal, CEP 14884-900 Jaboticabal, SP, Brazil. Electronic address: giovanizoot@yahoo.com.br.
authors.forename: G
authors.initials: G
authors.lastname: Fiorentini
authors.affiliation: Animal Science Department, Universidade Estadual Paulista Julio de Mesquita Filho (Unesp), Campus Jaboticabal, CEP 14884-900 Jaboticabal, SP, Brazil.
authors.forename: A
authors.initials: A
authors.lastname: Jose Neto
authors.affiliation: Animal Science Department, Universidade Estadual Paulista Julio de Mesquita Filho (Unesp), Campus Jaboticabal, CEP 14884-900 Jaboticabal, SP, Brazil.
authors.forename: B R
authors.initials: BR
authors.lastname: Vieira
authors.affiliation: Animal Science Department, Universidade Estadual Paulista Julio de Mesquita Filho (Unesp), Campus Jaboticabal, CEP 14884-900 Jaboticabal, SP, Brazil.
authors.forename: E B
authors.initials: EB
authors.lastname: Malheiros
authors.affiliation: Animal Science Department, Universidade Estadual Paulista Julio de Mesquita Filho (Unesp), Campus Jaboticabal, CEP 14884-900 Jaboticabal, SP, Brazil.
authors.forename: T H
authors.initials: TH
authors.lastname: Borghi
authors.affiliation: Animal Science Department, Universidade Estadual Paulista Julio de Mesquita Filho (Unesp), Campus Jaboticabal, CEP 14884-900 Jaboticabal, SP, Brazil; INCT/CA - UFV - Department of Animal Science, Av. Peter Henry Rolfs s/n, Campus Universitário, CEP 36570-000 Viçosa, MG, Brazil.
authors.forename: T T
authors.initials: TT
authors.lastname: Berchielli
mesh_terms: D000821:Animal Feed / Q000032:analysis*; D000824:Animal Nutritional Physiological Phenomena; D000818:Animals; D002417:Cattle / Q000502:physiology*; D004032:Diet / Q000662:veterinary; D005227:Fatty Acids / Q000032:analysis / Q000378:metabolism*; D008297:Male; D008460:Meat / Q000032:analysis* / Q000592:standards; D013025:Glycine max; D013213:Starch
chemical_list: D005227:Fatty Acids; D013213:Starch
keywords: Bos indicus; Corn silage; Fatty acid profile; Lipid; Meat quality