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Genetic markers for the production of US country hams
Author(s) -
Ramos A.M.,
Glenn K.L.,
Serenius T.V.,
Stalder K.J.,
Rothschild M.F.
Publication year - 2008
Publication title -
journal of animal breeding and genetics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.689
H-Index - 51
eISSN - 1439-0388
pISSN - 0931-2668
DOI - 10.1111/j.1439-0388.2007.00710.x
Subject(s) - production (economics) , biology , microbiology and biotechnology , economics , macroeconomics
Summary The objective of this study was to determine the effect of candidate genes on processing quality traits of US country hams. A total of 321 fresh hams of unknown breed and sex were examined and data on quality and physical traits were collected. The hams were then processed following typical US commercial dry‐curing procedures for ham and data on additional traits were collected from the cured hams. Several genes involved in biological processes affecting dry‐cured ham production were selected. Polymerase chain reaction‐restriction fragment length polymorphism (PCR‐RFLP) tests were designed for each of the genes where polymorphisms were discovered and association analyses between each marker and the traits collected were performed. Results showed that two genetic markers were significantly associated with cured weight and yield: (i) a gene from the cathepsin family (cathepsin F) and (ii) the stearoyl‐CoA desaturase (delta‐9‐desaturase) gene, involved in lipid metabolism. Moreover, markers that significantly affected colour traits and those having a significant impact on pH and lipid percentage were also identified. These markers could be used for screening and sorting of carcasses prior to ham processing and, eventually in pig improvement programmes designed to select animals possessing genotypes more suitable for the production of dry‐cured hams.