title: Fatty acid profiles of milk and Minas frescal cheese from lactating grazed cows supplemented with peanut cake.
abstract: Milk and Minas frescal cheese were evaluated from crossbred Holstein × Gir cows that were fed diets enriched with 0, 33, 66 and 100% inclusion levels of palm kernel cake in a concentrated supplement in replace of soybean meal. Eight crossbred lactating cows were distributed (four animals × four treatments × four periods) in the experimental design of double 4 × 4 Latin squares. The capric (C : 10, P = 0.0270), undecylic (C : 11, P = 0.0134), and lauric (C : 12, P = 0.0342) saturated fatty acid concentrations and CLA (C18 : 2c9t11, P = 0.0164) of the milk fat decreased linearly with an increasing percentage of peanut cake in the diet. The increased peanut cake content (100%) in the diet was associated with a linear decrease in C : 10 (P = 0.0447), C : 12 (P = 0.0002), mirystic (C : 14, P 0.05) ratios were not influenced by the different peanut cake levels. The inclusion of up to 100% peanut cake as a substitution for soybean meal in the concentrate of grazing lactating cows resulted in changes in the nutritional quality of their milk products, as indicated by the increase in polyunsaturated fatty acids and the decrease of saturated fatty acids (lauric, myristic, and palmitic).
authors.affiliation: Departmento de Zootecnia,University of Bahia Santa Maria; Department of Animal Science, Federal Universityof Santa Maria, Rio Grande do Sul, Brazil.
authors.forename: Weiler Giacomazza
authors.initials: WG
authors.lastname: Cerutti
authors.affiliation: Departmento de Zootecnia,University of Bahia Santa Maria,Brazil.
authors.forename: Julio
authors.initials: J
authors.lastname: Viegas
authors.affiliation: School of Veterinary and Animal Science,Federal University of Bahia,Salvador,Bahia 40170110,Brazil.
authors.forename: Analívia Martins
authors.initials: AM
authors.lastname: Barbosa
authors.affiliation: School of Veterinary and Animal Science,Federal University of Bahia,Salvador,Bahia 40170110,Brazil.
authors.forename: Ronaldo Lopes
authors.initials: RL
authors.lastname: Oliveira
authors.affiliation: Department of Animal Science,Federal University of Reconcavo Baiano,Cruz das Almas,Bahia 44380000,Brazil.
authors.forename: Carina Anunciação
authors.initials: CA
authors.lastname: Dias
authors.affiliation: School of Veterinary and Animal Science,Federal University of Bahia,Salvador,Bahia 40170110,Brazil.
authors.forename: Emellinne Souza
authors.initials: ES
authors.lastname: Costa
authors.affiliation: Departmento de Zootecnia,University of Bahia Santa Maria,Brazil.
authors.forename: José Laerte
authors.initials: JL
authors.lastname: Nornberg
authors.affiliation: School of Veterinary and Animal Science,Federal University of Bahia,Salvador,Bahia 40170110,Brazil.
authors.forename: Gleidson Giordano Pinto
authors.initials: GG
authors.lastname: de Carvalho
authors.affiliation: Department of Animal Science,Federal University of Piaui,Bom Jesus,Piaui 6490000,Brazil.
authors.forename: Leilson Rocha
authors.initials: LR
authors.lastname: Bezerra
authors.affiliation: Departmento de Zootecnia,University of Bahia Santa Maria,Brazil.
authors.forename: Alisson Minozzo
authors.initials: AM
authors.lastname: Silveira
mesh_terms: D000821:Animal Feed / Q000032:analysis*; D000824:Animal Nutritional Physiological Phenomena; D000818:Animals; D010367:Arachis / Q000737:chemistry*; D002417:Cattle; D002611:Cheese / Q000032:analysis*; D004032:Diet / Q000662:veterinary*; D019587:Dietary Supplements; D004305:Dose-Response Relationship, Drug; D005227:Fatty Acids / Q000737:chemistry* / Q000378:metabolism; D005260:Female; D008892:Milk / Q000737:chemistry*
chemical_list: D005227:Fatty Acids
keywords: Fatty acids; lipid profile; oilseed cake; omega 3