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Abstract
The objective of this study was to evaluate the fatty acid profile and qualitative characteristics of meat from feedlot young bulls fed ground soybean or ground cottonseed, with or without supplementation of vitamin E. A total of 40 Red Norte young bulls, with an initial average age of 20 months, and an initial average BW of 339±15 kg, were allotted in a completely randomized design using a 2×2 factorial arrangement, with two oilseeds, and daily [ver mas...]
dc.contributor.authorMachado Neto, O.R.
dc.contributor.authorChizzotti, M.L.
dc.contributor.authorRamos, E.M.
dc.contributor.authorOliveira, D.M.
dc.contributor.authorLanna, D.P.D.
dc.contributor.authorRibeiro, J.S.
dc.contributor.authorLopes, L.S.
dc.contributor.authorDescalzo, Adriana Maria
dc.contributor.authorAmorim, T.R.
dc.contributor.authorLadeira, M.M.
dc.date.accessioned2018-04-23T12:21:13Z
dc.date.available2018-04-23T12:21:13Z
dc.date.issued2015-02
dc.identifier.issn1751-7311 (Print)
dc.identifier.issn1751-732X (Online)
dc.identifier.otherhttps://doi.org/10.1017/S1751731114002377
dc.identifier.urihttps://www.cambridge.org/core/journals/animal/article/fatty-acid-profile-and-meat-quality-of-young-bulls-fed-ground-soybean-or-ground-cottonseed-and-vitamin-e/1A26D52FE7AA3393B8BA1DDE54C60204
dc.identifier.urihttp://hdl.handle.net/20.500.12123/2282
dc.description.abstractThe objective of this study was to evaluate the fatty acid profile and qualitative characteristics of meat from feedlot young bulls fed ground soybean or ground cottonseed, with or without supplementation of vitamin E. A total of 40 Red Norte young bulls, with an initial average age of 20 months, and an initial average BW of 339±15 kg, were allotted in a completely randomized design using a 2×2 factorial arrangement, with two oilseeds, and daily supplementation or not of 2500 IU of vitamin E. The experimental period was for 84 days, which was preceded by an adaptation period of 28 days. The treatments were ground soybean (SB), ground soybean plus vitamin E (SBE), ground cottonseed (CS) and ground cottonseed plus vitamin E (CSE). The percentage of cottonseed and soybean in the diets (dry matter basis) was 24% and 20%, respectively. Diets were isonitrogenous (13% CP) and presented similar amount of ether extract (6.5%). The animals were slaughtered at average live weight of 464±15 kg, and samples were taken from the longissimus dorsi muscle for the measurement of fatty acid concentration and the evaluation of lipid oxidation and color of the beef. Before fatty acid extraction, muscle tissue and subcutaneous fat of the longissimus dorsi were separated to analyze fatty acid profile in both tissues. Supplementation of vitamin E did not affect fatty acid concentration, lipid oxidation and color (P>0.05). Subcutaneous fat from animals fed CS diet had greater C12:0, C16:0 and C18:0 contents (P<0.03). In addition, CS diets reduced the C18:1 and C18:2 cis-9, trans-11 contents in subcutaneous fat (P<0.05). The muscle from animals fed CS tended to higher C16:0 and C18:0 contents (P<0.11), and decreased C18:1, C18:2 cis-9, trans-11 and C18:3 contents (P<0.05) compared with SB. The Δ9-desaturase index was greater in muscle from animals fed SB (P<0.01). At 42 days of age, meat from cattle fed SB had a greater lipid oxidation rate (P<0.05). Meat from animals fed SB diets had less lightness and redness indices than meat from animals fed CS diets after 14 days of age. In conclusion, the addition of ground cottonseed in the finishing diets did increase the saturated fatty acid content of the longissimus dorsi. However, animals fed cottonseed exhibited greater lightness and redness of beef. In this study, the addition of vitamin E did not affect qualitative characteristics of meat.eng
dc.formatapplication/pdfes_AR
dc.language.isoenges_AR
dc.rightsinfo:eu-repo/semantics/restrictedAccesses_AR
dc.sourceAnimal 9 (2) : 362-372. (February 2015)es_AR
dc.subjectÁcidos Grasoses_AR
dc.subjectFatty Acidseng
dc.subjectCalidad de la Carnees_AR
dc.subjectMeat Qualityeng
dc.subjectToroes_AR
dc.subjectBullseng
dc.subjectAnimales Jóveneses_AR
dc.subjectYoung Animalseng
dc.subjectAlimentación de los Animaleses_AR
dc.subjectAnimal Feedingeng
dc.subjectSojaes_AR
dc.subjectSoybeanseng
dc.subjectSemilla de Algodónes_AR
dc.subjectCottonseedeng
dc.titleFatty acid profile and meat quality of young bulls fed ground soybean or ground cottonseed and vitamin Ees_AR
dc.typeinfo:ar-repo/semantics/artículoes_AR
dc.typeinfo:eu-repo/semantics/articlees_AR
dc.typeinfo:eu-repo/semantics/publishedVersiones_AR
dc.description.origenInstituto de Tecnología de Alimentoses_AR
dc.description.filFil: Machado Neto, O.R. Universidade Estadual Paulista Júlio de Mesquita Filho. College of Veterinary Medicine and Animal Science; Brasiles_AR
dc.description.filFil: Chizzotti, M.L. Universidade Federal de Viçosa. Department of Animal Science; Brasiles_AR
dc.description.filFil: Ramos, E.M. Universidade Federal de Lavras. Department of Food Science; Brasiles_AR
dc.description.filFil: Oliveira, D.M. Universidade Federal de Lavras. Department of Animal Science; Brasiles_AR
dc.description.filFil: Lanna, D.P.D. Universidade de São Paulo. Escola Superior de Agricultura Luiz de Queiroz. Department of Animal Science; Brasiles_AR
dc.description.filFil: Ribeiro, J.S. Universidade Federal de Alagoas; Brasiles_AR
dc.description.filFil: Lopes, L.S. Universidade do Estado de Santa Catarina. Centro de Educação Superior do Oeste; Brasiles_AR
dc.description.filFil: Descalzo, Adriana Maria. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto Tecnología de Alimentos; Argentinaes_AR
dc.description.filFil: Amorim, T.R. Universidade Federal de Viçosa. Department of Animal Science; Brasiles_AR
dc.description.filFil: Ladeira, M.M. Universidade Federal de Viçosa. Department of Animal Science; Brasiles_AR
dc.subtypecientifico


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