Association between functional candidate genes and organoleptic meat traits in intensively-fed beef.
The aim of this study was to assess the associations between the single nucleotide polymorphisms in CAPN1, CAST, DGAT1, FABP4, LEP, RORC and SCD1 genes and the sensory meat quality in an intensively fed commercial population (Charolais, Limousin and Retinta breed). This work carried out analyses on a common Spanish population and evaluated the association between the markers and sensory traits. A total of 161 bulls were allocated to two different feedlots with two different finishing diets. Steaks aged for 7 and 21 days were assessed by both untrained and trained sensory panels. A significant association and allelic substitution effect were observed for markers UoG-CAST, LEP: g.73C>T and SCD1: g.878T>C on different descriptors evaluated by a consumer panel (tenderness and overall acceptability). There are no precedents of these kinds of association studies in a Spanish commercial population. The study suggested that CAST, LEP and SCD1 genes have a potential effect on the different measurements of sensory meat quality.
MERAGEM Research Group, Veterinary Faculty, University of Cordoba, 14071 Cordoba, Spain. Electronic address: v92avrac@uco.es.
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Avilés
MERAGEM Research Group, Veterinary Faculty, University of Cordoba, 14071 Cordoba, Spain.
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Peña
CITIUS, Avda. Reina Mercedes, 4-B, 41012 Sevilla, Spain.
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Polvillo
Animal Production and Food Science, Veterinary Faculty, Zaragoza, Spain.
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Barahona
Animal Production and Food Science, Veterinary Faculty, Zaragoza, Spain.
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Campo
Animal Production and Food Science, Veterinary Faculty, Zaragoza, Spain.
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Sañudo
Agriculture and Agri-Food Canada, Lacombe Research Centre, 6000 C&E Trail, T4L 1W1 Lacombe, Canada.
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Juárez
Department of Agroforestry Science, University of Sevilla, Spain.
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Horcada
Department of Agroforestry Science, University of Sevilla, Spain.
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Alcalde
MERAGEM Research Group, Veterinary Faculty, University of Cordoba, 14071 Cordoba, Spain.
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Molina
D000293:Adolescent; D000328:Adult; D000368:Aged; D000483:Alleles; D000822:Animal Husbandry; D000818:Animals; D001947:Breeding; D002135:Calcium-Binding Proteins / Q000235:genetics*; D002417:Cattle; D005260:Female; D005838:Genotype; D006801:Humans; D020738:Leptin / Q000235:genetics*; D008297:Male; D008875:Middle Aged; D010641:Phenotype; D020641:Polymorphism, Single Nucleotide; D000069466:Red Meat / Q000032:analysis*; D013030:Spain; D013230:Stearoyl-CoA Desaturase / Q000235:genetics*; D013314:Stress, Mechanical; D013649:Taste; D055815:Young Adult
D002135:Calcium-Binding Proteins; D020738:Leptin; C033668:calpastatin; D013230:Stearoyl-CoA Desaturase
Acceptability; Bos taurus; Consumers; Molecular markers; Single nucleotide polymorphism; Trained panel