title: Whole grains in the finishing of culled ewes in pasture or feedlot: Performance, carcass characteristics and meat quality.
abstract: In order to evaluate the performance, carcass characteristics and meat quality of culled ewes finished in pasture or exclusivelywith grain, 41 culled Polwarth ewes, were assigned to six treatments: RY (ryegrass pasture), RYGO (ryegrass and whole grain oats), RYGM (ryegrass and whole grain maize), GM (whole grain maize), GO (whole grain oats), GS (whole grain sorghum). The finishing systemof the ewes influenced weight gain,wherein the GM and GS treatments increased daily weight gain. The GO treatment decreased the dressing percentage. Nonetheless, a*, h*, pH, cooking loss and tenderness were similar across dietary treatments. Using principal component analysis, the variables C18:2n6, h*, n6/n3, TBARS, total lipids, L* and b* were assigned as characteristics of meat from the feedlot animals, while the pasture finishing system produced meat with higher CLA and n-3 fatty acids but lower TBARS values indicating lipid stability.
authors.affiliation: Departamento de Tecnologia e Ciência dos Alimentos (DTCA), Universidade Federal de Santa Maria (UFSM), Roraima 44, Rio Grande do Sul, Brazil. Electronic address: ap_burin@hotmail.com.
authors.forename: Ana Paula Burin
authors.initials: AP
authors.lastname: Fruet
authors.affiliation: Departamento de Tecnologia e Ciência dos Alimentos (DTCA), Universidade Federal de Santa Maria (UFSM), Roraima 44, Rio Grande do Sul, Brazil.
authors.forename: Flávia Santi
authors.initials: FS
authors.lastname: Stefanello
authors.affiliation: Instituto Federal Farroupilha (IFF), São Vicente do Sul campus, 20 de setembro, Rio Grande do Sul, Brazil.
authors.forename: Adriano Garcia
authors.initials: AG
authors.lastname: Rosado Júnior
authors.affiliation: Instituto Federal Farroupilha (IFF), São Vicente do Sul campus, 20 de setembro, Rio Grande do Sul, Brazil.
authors.forename: Alexandre Nunes Motta de
authors.initials: AN
authors.lastname: Souza
authors.affiliation: Instituto Federal Farroupilha (IFF), São Vicente do Sul campus, 20 de setembro, Rio Grande do Sul, Brazil.
authors.forename: Cléber José
authors.initials: CJ
authors.lastname: Tonetto
authors.affiliation: Departamento de Tecnologia e Ciência dos Alimentos (DTCA), Universidade Federal de Santa Maria (UFSM), Roraima 44, Rio Grande do Sul, Brazil.
authors.forename: José Laerte
authors.initials: JL
authors.lastname: Nörnberg
mesh_terms: D000821:Animal Feed / Q000032:analysis*; D000824:Animal Nutritional Physiological Phenomena; D000818:Animals; D001823:Body Composition / Q000502:physiology*; D004032:Diet / Q000662:veterinary*; D005260:Female; D008460:Meat / Q000592:standards*; D012756:Sheep; D000067348:Whole Grains
keywords: Fatty acids; High-grain diet; Meat; Ryegrass; Sheep