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Título
Lipid characteristics of the muscle and perirenal fat in young Tudanca bulls fed on different levels of grass silage
Autor
Año del Documento
2023
Editorial
MDPI
Descripción
Producción Científica
Documento Fuente
Animals, 2023, Vol. 13, Nº. 2, 261
Resumen
Simple Summary: Grass silage is commonly used as a forage source in winter for finishing bull in European regions under oceanic climates, such as the Cantabrian cornice, where the local Tudanca breed is produced. Grass silage, compared with barley straw in the bull’s diet showed an effect on beef quality, i.e., increased saturated fatty acids, n-3 fatty acids, and β-carotene and decreased monounsaturated and polyunsaturated fatty acids. Beef from silage-fed bulls and straw-fed bulls could be differentiated by fatty acid percentages, especially 18:0, t-18:1, and c9-18:1, b-carotene content, b* colour value, and carotenoid colour index. Beef derived from grass-fed cattle is a specific quality criterion. The effect of grass silage intake on quality characteristics, i.e., fatty acids, fat-soluble vitamins, and lipid-derived volatile composition of intramuscular and perirenal fat from fattening bull weaners were studied. Visible (VIS) and near-infrared (NIR) spectra were also obtained from perirenal fat. Perirenal fat analysis was performed for feeding differentiation purposes. A total of 22 Tudanca breed 11-month-aged bulls were finished on three different diets: grass silage and a commercial concentrate ad libitum (GS-AC), grass silage ad libitum and the commercial concentrate restricted to half of the intake of the GS-AC group (GS-LC), and barley straw and concentrate ad libitum (Str-AC). Feeding had a significant effect (p < 0.05) on γ-linolenic acid and the ratio n-6/n-3 fatty acids. Furthermore, β-carotene content was greater in beef from silage groups than in the Str-AC group. Feeding also affected the perirenal fat composition. Beef from silage-fed bulls and straw-fed bulls could be differentiated by fatty acid percentages, especially 18:0, t-18:1, and c9-18:1, β-carotene content, b* colour value, and carotenoid colour index. However, the VIS or NIR spectra data showed poor differentiating performance, and the volatile composition did not have appreciable differentiation power.
Materias (normalizadas)
Authentication
Beef
Toros
Cattle - Spain
Ganado vacuno - España - Cantabria
Ganado - Cría y explotación
Vitamins
Lipids
Lípidos
Fatty acids
Acidos grasos
Animal feeding
Alimentación animal
Animales - Nutrición
Volatile compounds
Compuestos orgánicos volátiles
Materias Unesco
5102.11 Ganadería
3206.13 Vitaminas
3104.06 Nutrición
3104 Producción Animal
ISSN
2076-2615
Revisión por pares
SI
Patrocinador
Comunidad Autónoma de Cantabria, Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA) - (project INIA-RTA2012- 00084)
Version del Editor
Propietario de los Derechos
© 2023 The authors
Idioma
eng
Tipo de versión
info:eu-repo/semantics/publishedVersion
Derechos
openAccess
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