AAB Archives Animal Breeding AAB Arch. Anim. Breed. 2363-9822 FBN Dummerstorf Göttingen, Germany 10.5194/aab-53-116-2010 Effect of <i>SCD</i> SNPs on milk production traits of Jersey cows (Brief Report) Kulig H. 1 Kowalewska-Łuczak I. 1 Kmieć M. 1 Department of Genetics and Animal Breeding, Westpomeranian University of Technology, Szczecin, Poland 10 10 2010 53 1 116 118 Copyright: © 2010 H. Kulig et al. 2010 This work is licensed under the Creative Commons Attribution 3.0 Unported License. To view a copy of this licence, visit https://creativecommons.org/licenses/by/3.0/ This article is available from https://aab.copernicus.org/articles/53/116/2010/aab-53-116-2010.html The full text article is available as a PDF file from https://aab.copernicus.org/articles/53/116/2010/aab-53-116-2010.pdf

Studies concerning associations between candidate gene polymorphisms and milk production traits in cattle are carried out on a large scale (CITEK et al. 2007, KULIG 2005). Stearoyl-CoA desaturase (SCD) is the enzyme involved in conversion of saturated fatty acids into monounsaturated fatty acids. The gene encoding SCD was mapped to bovine chromosome 26 (CAMPBELL et al. 2001), where some QTLs for fat yield and other milk production traits as well as for somatic cells count (SCC) were also identified. Some of the SNPs identified within the <i>SCD</i> were significantly associated with fatty acid composition in milk and in carcass fat tissue (MOIOLI et al. 2007, TANIGUCHI et al. 2004). The effect of genotypes on milk production traits and SCC in cattle has not been reported so far. The aim of this study was therefore to establish possible associations between two SNPs in the <i>SCD</i> and milk production traits and SCC in Jersey cows.