Diferencias en la actividad desaturasa y elongasa entre tejidos y genotipos de cerdos Duroc
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[1] Universitat de Lleida
Universitat de Lleida
Lérida, España
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- Localización: XV Jornadas sobre Producción Animal: 14 y 15 de mayo de 2013, Zaragoza / Jorge Hugo Calvo Lacosta (aut.), Isabel Casasús Pueyo (aut.), Margalida Joy Torrens (aut.), Javier Álvarez Rodríguez (aut.), Luis Varona Aguado (aut.), Begoña Panea Doblado (aut.), Carlos Calvete Margolles (aut.), Joaquim Barcells Teres (aut.), Vol. 2, 2013, ISBN 978-84-695-7684-7, págs. 517-519
- Idioma: español
- Títulos paralelos:
- Desaturase and elongase activity across tissues and genotypes in Duroc pigs
- Enlaces
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Resumen
Fat content and composition, particularly oleic acid (C18:1n-9), are two aspects that influence meat quality. The biosynthesis of C18:1n-9 depends on the estearoyl-CoA desaturase (SCD) and elongase (E) enzymes. The aim of the present study was to determine whether the activity of these enzymes differs across tissues and genotypes in Duroc pigs. Genotypes were based on the AY487830:g.2281A>G polymorphism of the SCD gene. The SCD related-ratios{SCD1=C16:1n-7/C16:0; SCD2=C18:1n-9/C18:0} were greater in muscle than in subcutaneous fat and liver, confirming that SCD activity is tissue-specific. The elongase ratios {E1=C18:0/C16:0; E2=C18:1n-7/C16:1n-7} were greater in liver and subcutaneous fat than in muscle. The AA genotype had higher activity for SCD but not for E. The correlations between SCD ratios, as well as those between E ratios, were positive in all tissues. By contrast, the correlations between SCD and E ratios were negative.
