148090 20250115151521.0 doi 10.1071/AN18620 sideral 116528 ART-2020-116528 eng Rivaroli, D. C. Effect of an essential oils blend on meat characteristics of crossbred heifers finished on a high-grain diet in a feedlot 2020 Context: Natural additives have been studied to increase animal performance and the quality of meat as alternatives to the use of antibiotics. Aims: The present work investigated the effects of an essential oil blend (oregano, rosemary, lemon, garlic, eucalyptus, thyme and sweet orange) incorporated into the diet of crossbred heifers on the meat quality. Methods: Thirty 12-month-old half-sister crossbred heifers (1/2 Angus vs 1/2 Nellore) with an average weight of 219.8 ± 8.8 kg were allocated in individual pens for 3 months. Three diets were tested: E0.0 (without the essential oil blend); E3.5 (with 3.5 g of the essential oil blend/animal.day); E7.0 (7.0 g of the essential oil blend/animal.day). The fatty acid composition (chemical) and profile of the Longissimus muscle were evaluated. In addition, the effect of aging (1, 7 and 14 days in vacuum packs at 2°C) on the colour, cooking and thawing losses, texture, and lipid oxidation were determined. Key results: The essential oil blend did not affect (P > 0.05) the meat. It did not impact on the decrease in shear force, increased lipid oxidation or changes in colour with aging. Conclusions: The chemical composition, water holding capacity, shear force, lipid oxidation, and fatty acid profile were not influenced by including the essential oil blend in the diet of heifers. Implications: The use of low dosages of an essential oil blend could be applied in the diet of heifers, without affecting meat quality. info:eu-repo/semantics/closedAccess All rights reserved http://www.europeana.eu/rights/rr-f/ 1.533 2020 AGRICULTURE, DAIRY & ANIMAL SCIENCE 35 / 63 = 0.556 2020 Q3 T2 0.529 2020 Food Science 2020 Q2 Animal Science and Zoology 2020 Q2 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Campo, María del Mar Universidad de Zaragoza (orcid)0000-0002-8180-8663 Sañudo, C. (orcid)0000-0001-6166-7499 Guerrero, A. (orcid)0000-0001-6420-6364 Jorge, A. M. Vital, A. C. P. Valero, M. V. Do Prado, R. M. Do Prado, I. N. 2008 700 Universidad de Zaragoza Dpto. Produc.Animal Cienc.Ali. Área Producción Animal 60 (2020), 595–602 Anim. Prod. Sci. Animal Production Science 1836-0939 https://www.scopus.com/inward/record.uri?eid=2-s2.0-85079062257&doi=10.1071%2fAN18620&partnerID=40&md5=767f61d4d9dd21020b35fcc54e56d62e Texto completo de la revista 171648 http://zaguan.unizar.es/record/148090/files/texto_completo.pdf Versión publicada 2665983 http://zaguan.unizar.es/record/148090/files/texto_completo.jpg?subformat=icon icon Versión publicada oai:zaguan.unizar.es:148090 articulos driver 2025-01-15-15:14:34 ARTICLE