Ir a la página de inicio del Gobierno del Principado de Asturias

Datos del Documento

Utilice este identificador para citar o enlazar este documento: https://ria.asturias.es/RIA/handle/123456789/9705


Título: N-6 and n-3 fatty acids in different beef adipose tissues depending on the presence or absence of the gene responsible for double-muscling
Autores: Aldai, N.
Dugan, M.
Najera, A.
Osoro, Koldo
Palabras Claves: Ácidos grasos poliinsaturados;
Doblemusculo;
Grasa subcutánea
Genotipo
Fecha Edición: 2008
Editor: Czech Academy of Agricultural Sciences
Cita Bibliográfica: Aldai, N... [et al.]. N-6 and n-3 fatty acids in different beef adipose tissues depending on the presence or absence of the gene responsible for double-muscling. Czech Journal of Animal Science. 2008 ; 53 : 515-522
Resumen: Levels of n-6 and n-3 PUFAs, including those with 20 and 22 carbon-chains, in concentrate-fed Asturiana de los Valles (AV) yearling bulls with and without the double muscling gene (mh/mh = 24, mh/+ = 26, +/+ = 25) were measured to examine if this gene influences the pattern of PUFA deposition in different adipose tissues. Fatty acid compositions of muscle tissue (longissimus thoracis) and intermuscular and subcutaneous adipose tissues were determined by gas chromatography. The composition of intramuscular fat was unique compared to the other two adipose tissues which were similar in composition. In general, n-6 and n-3 fatty acid elongation and desaturation products were affected by AV genotype and this effect was most evident in n-3 PUFAs of the intramuscular fat of mh/mh (n-6/n-3 = 11.8 and 18:2n-6/18:3n-3 = 25.3) compared to mh/+ and +/+ animals (mean values of n-6/n-3 = 9.86 and 18:2n-6/18:3n-3 = 15.5). PUFA elongation and desaturation end products did not accumulate to any great extent in intermuscular and subcutaneous adipose tissues. Beef from mh/mh cattle showed greater deposition rates of n-3 elongation and desaturation products but their absolute content of total n-3 fatty acids was lower (21 mg/100 g meat) in comparison with mh/+ and +/+ cattle (mean value of 25 mg/100 g meat).
URI: https://ria.asturias.es/RIA/handle/123456789/9705
ISSN: 1212-1819
Aparece en las Colecciones:Agroalimentación y Ganadería

Archivos en este documento:



Archivo TamañoFormato
N-6 and n-3 fatty acids.pdf214,05 kBAdobe PDFVer/Abrir



logo

Todos los documentos en RIA están protegidos por derechos de autor.


Valid XHTML 1.0! DSpace Software Copyright © 2002-2007 MIT and Hewlett-Packard - Contacto