Lérida, España
Nutritional value of pork can be improved by replacing saturated fatty acids (SFA) in intramuscular fat (IMF) with monounsaturated fatty acids (MUFA), particularly oleic acid (C18:1). A one-generation selection experiment for C18:1 in gluteus medius based on phenotypic values of relatives was performed. Pigs in the experiment were also genotyped for the AY487830:g.2281A>G SNP polymorphism in the promoter region of the SCD gene. Results indicate that C18:1 may respond to direct selection if candidates are evaluated accurately. The allele A proved to be consistently associated to enhanced C18:1 and MUFA. The polymorphism did not affect IMF and production traits. It is concluded that, complementarily or alternatively, the SCD polymorphism can be used as a molecular marker for C18:1 in selection schemes.
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