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Título

Effect of slaughter age and feeding system on the neutral and polar lipid composition of horse meat

AutorBelaunzaran, X.; Lavín, Paz ; Mantecón, Ángel R. ; Kramer, J. K. G.; Aldai, Noelia
Palabras claveLong-chain fatty acids
Dimethylacetals
Foal
Lipid fractions
n-3 fatty acids
Fecha de publicación2018
EditorCambridge University Press
CitaciónAnimal 12: 417- 425 (2018)
ResumenThis study was undertaken to provide a thorough analysis of the neutral lipid (NL) and polar lipid (PL) fractions of horse meat that included the content and distribution of acyl and alkenyl moieties in foals under different rearing conditions. Two groups of crossbred horses were studied; the first group was selected from suckling foals produced under grazing conditions and slaughtered at 4 months of age (n=8), and the second group was selected from concentrate-finished foals and slaughtered at 12 months of age (n=7). There were significant differences related to the age and feeding practices of foals which affected the intramuscular (IM) fat content and the fatty acid (FA) composition of NL and PL fractions. Samples from suckling foals were leaner and provided the highest content of methylation products from the plasmalogenic lipids, and total and n-3 polyunsaturated fatty acid (PUFA). By contrast, the meat from concentrate-finished foals had a higher IM fat level resulting in a greater accumulation of 16:0 and total monounsaturated FAs in the NL fraction, whereas the muscle PL fraction retained a similar FA composition between both groups. Linolenic acid was preferentially deposited in the NL fraction, but linoleic acid and the long-chain n-3 and n-6 PUFAs were incorporated into the PL fraction where they served as cell membrane constituents and in eicosanoid formation.
Descripción9 páginas, 3 tablas, 2 figuras.
Versión del editorhttp://dx.doi.org/10.1017/S1751731117001689
URIhttp://hdl.handle.net/10261/167800
DOI10.1017/S1751731117001689
ISSN1751-732X
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