RT info:eu-repo/semantics/article
T1 Lipid Characteristics of the Muscle and Perirenal Fat in Young Tudanca Bulls Fed on Different Levels of Grass Silage
A1 Mateo Oyagüe, Javier
A1 Caro, Irma
A1 Soto, Sergio
A1 Andrés, Sonia
A1 Alaiz Rodríguez, Rocío
A1 Serrano, Emma
A2 Tecnologia de los Alimentos
K1 Tecnología de los alimentos
K1 Authentication
K1 Beef
K1 Fat-soluble vitamins
K1 Fatty acids
K1 Feeding system
K1 Volatile compounds
K1 3309 Tecnología de Los Alimentos
AB [EN] 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.
PB MDPI
LK https://hdl.handle.net/10612/19998
UL https://hdl.handle.net/10612/19998
NO Mateo, J., Caro, I., Soto, S., Andrés, S., Aláiz Rodríguez, R., & Serrano, E. (2023). Lipid Characteristics of the Muscle and Perirenal Fat in Young Tudanca Bulls Fed on Different Levels of Grass Silage. Animals, 13(2), Article e261. https://doi.org/10.3390/ANI13020261
NO Copyright: © 2023 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https:// creativecommons.org/licenses/by/ 4.0/).
DS BULERIA. Repositorio Institucional de la Universidad de León
RD 19-may-2024