Feeding Agro-Industrial By-Products to Light Lambs: Influence on Meat Characteristics, Lipid Oxidation, and Fatty Acid Profile

The aim of this study was to assess the effects of replacing 44% of conventional feeds in a high-cereal concentrate (CON) with by-products (BYP concentrate; 18% corn distillers dried grains with solubles, 18% dried citrus pulp, and 8% exhausted olive cake) on the meat characteristics and fatty acid...

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Main Authors: Trinidad de Evan, Almudena Cabezas, Jesús de la Fuente Vázquez, María Dolores Carro
Format: Article
Language:English
Published: MDPI AG 2020-09-01
Series:Animals
Subjects:
Online Access:https://www.mdpi.com/2076-2615/10/9/1572
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author Trinidad de Evan
Almudena Cabezas
Jesús de la Fuente Vázquez
María Dolores Carro
author_facet Trinidad de Evan
Almudena Cabezas
Jesús de la Fuente Vázquez
María Dolores Carro
author_sort Trinidad de Evan
collection DOAJ
description The aim of this study was to assess the effects of replacing 44% of conventional feeds in a high-cereal concentrate (CON) with by-products (BYP concentrate; 18% corn distillers dried grains with solubles, 18% dried citrus pulp, and 8% exhausted olive cake) on the meat characteristics and fatty acid (FA) profile of fattening light lambs. Two groups of 12 Lacaune lambs were fed concentrate and barley straw ad libitum from 13.8 to 26.0 kg of body weight. There were no differences (<i>p</i> ≥ 0.130) between groups in the pH, chemical composition, color, and texture parameters and in the estimated proportions of pigments in the longissimus dorsi. Feeding the BYP concentrate reduced the concentration of thiobarbituric acid reactive substances (TBARS) in the meat after 6 days of refrigerated storage (unmodified atmosphere), probably due to the greater polyphenol content in this concentrate. Compared with CON-fed lambs, the meat and the subcutaneous fat from BYP-fed lambs had lower saturated and greater polyunsaturated FA content as well as greater n-6/n-3 FA. In summary, feeding a blend of corn distiller dried grains with solubles, dried citrus pulp, and exhausted olive cake did not change the composition of the meat but improved its antioxidant status and FA profile.
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spelling doaj.art-babc54149c894e94b12062d97510311a2023-11-20T12:31:22ZengMDPI AGAnimals2076-26152020-09-01109157210.3390/ani10091572Feeding Agro-Industrial By-Products to Light Lambs: Influence on Meat Characteristics, Lipid Oxidation, and Fatty Acid ProfileTrinidad de Evan0Almudena Cabezas1Jesús de la Fuente Vázquez2María Dolores Carro3Departamento de Producción Agraria, ETSIAAB, Universidad Politécnica de Madrid, Ciudad Universitaria, 28040 Madrid, SpainDepartamento de Producción Animal, Facultad de Veterinaria, Universidad Complutense de Madrid, 20840 Madrid, SpainDepartamento de Producción Animal, Facultad de Veterinaria, Universidad Complutense de Madrid, 20840 Madrid, SpainDepartamento de Producción Agraria, ETSIAAB, Universidad Politécnica de Madrid, Ciudad Universitaria, 28040 Madrid, SpainThe aim of this study was to assess the effects of replacing 44% of conventional feeds in a high-cereal concentrate (CON) with by-products (BYP concentrate; 18% corn distillers dried grains with solubles, 18% dried citrus pulp, and 8% exhausted olive cake) on the meat characteristics and fatty acid (FA) profile of fattening light lambs. Two groups of 12 Lacaune lambs were fed concentrate and barley straw ad libitum from 13.8 to 26.0 kg of body weight. There were no differences (<i>p</i> ≥ 0.130) between groups in the pH, chemical composition, color, and texture parameters and in the estimated proportions of pigments in the longissimus dorsi. Feeding the BYP concentrate reduced the concentration of thiobarbituric acid reactive substances (TBARS) in the meat after 6 days of refrigerated storage (unmodified atmosphere), probably due to the greater polyphenol content in this concentrate. Compared with CON-fed lambs, the meat and the subcutaneous fat from BYP-fed lambs had lower saturated and greater polyunsaturated FA content as well as greater n-6/n-3 FA. In summary, feeding a blend of corn distiller dried grains with solubles, dried citrus pulp, and exhausted olive cake did not change the composition of the meat but improved its antioxidant status and FA profile.https://www.mdpi.com/2076-2615/10/9/1572meat qualityfatty acidmeat oxidationcorn distillers dried grains with solublescitrus pulpexhausted olive cake
spellingShingle Trinidad de Evan
Almudena Cabezas
Jesús de la Fuente Vázquez
María Dolores Carro
Feeding Agro-Industrial By-Products to Light Lambs: Influence on Meat Characteristics, Lipid Oxidation, and Fatty Acid Profile
Animals
meat quality
fatty acid
meat oxidation
corn distillers dried grains with solubles
citrus pulp
exhausted olive cake
title Feeding Agro-Industrial By-Products to Light Lambs: Influence on Meat Characteristics, Lipid Oxidation, and Fatty Acid Profile
title_full Feeding Agro-Industrial By-Products to Light Lambs: Influence on Meat Characteristics, Lipid Oxidation, and Fatty Acid Profile
title_fullStr Feeding Agro-Industrial By-Products to Light Lambs: Influence on Meat Characteristics, Lipid Oxidation, and Fatty Acid Profile
title_full_unstemmed Feeding Agro-Industrial By-Products to Light Lambs: Influence on Meat Characteristics, Lipid Oxidation, and Fatty Acid Profile
title_short Feeding Agro-Industrial By-Products to Light Lambs: Influence on Meat Characteristics, Lipid Oxidation, and Fatty Acid Profile
title_sort feeding agro industrial by products to light lambs influence on meat characteristics lipid oxidation and fatty acid profile
topic meat quality
fatty acid
meat oxidation
corn distillers dried grains with solubles
citrus pulp
exhausted olive cake
url https://www.mdpi.com/2076-2615/10/9/1572
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