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Utilice este identificador para citar o enlazar este documento: https://ria.asturias.es/RIA/handle/123456789/2167


Título: The influence of breed and mh-genotype on carcass conformation, meat physico-chemical characteristics, and the fatty acid profile of muscle from yearling bulls
Autores: Aldai, Noelia
Murray, Brendan E.
Oliván, Mamen
Martínez, Antonio
Troy, Declan J.
Osoro Otaduy, Koldo
Nájera, Ana I.
Palabras Claves: Beef
Breed
Genotype
Muscular hypertrophy
Carcass quality
Meat quality
Colour
Fatty acids
Fecha Edición: Mar-2006
Editor: Elsevier
Cita Bibliográfica: Aldai, Noelia; Murray, Brendan E.; Oliván, Mamen; Martínez, Antonio; Troy, Declan J.; Osoro, Koldo; Nájera, Ana I. The influence of breed and mh-genotype on carcass conformation, meat physico-chemical characteristics, and the fatty acid profile of muscle from yearling bulls. Meat Science. 2006; 72 (3): 486-495.
Resumen: The influence of breed and mh-genotype on carcass conformation, meat physico-chemical characteristics and the fatty acid profile of muscle were studied. Samples from 16 yearling bulls from “Asturiana de los Valles” (AV, n = 12) and “Asturiana de la Montaña” (AM, n = 4) were collected. AV animals were classified into three groups according to the presence of the gene causing double-muscling (AV double-muscled (mh/mh), n = 4; AV heterozygous (mh/+), n = 4; AV normal (+/+), n = 4). Double-muscled animals displayed better carcass traits, lower total fat (comprised of subcutaneous (SC), intermuscular (IT) and intramuscular (IM) deposits), higher lean, moisture and drip loss, and lighter meat than AV normal animals. Heterozygous animals showed intermediate characteristics. AM animals, being a more rustic and smaller breed, showed lower conformation, higher total fat (SC, IT and IM), lower moisture and darker meat. According to the intramuscular fatty acid profile, mh/mh animals showed a lower proportion of SFA and MUFA, and a higher proportion of PUFA with an equal proportion of CLA in total fatty acid content. The P/S ratio increased with increasing number of mh alleles (or double-muscling character), while no differences between animal groups were found for the n − 6/n − 3 ratio.
URI: https://ria.asturias.es/RIA/handle/123456789/2167
ISSN: 0309-1740
Aparece en las Colecciones:Agroalimentación y Ganadería
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