Association of STAT5A Gene Variants with Milk Production Traits in Agerolese Cattle
- 210 Downloads
Two polymorphisms at STAT5A gene were investigated in a sample of Agerolese cows. The aims of the present study were to estimate the allele and genotype frequencies and to investigate the relationship among genotypes and milk production traits. Milk production traits were analyzed for each animal in the first, second, third, and fourth lactation. No genetic variability was found at STAT5A/AvaI locus. At STAT5A/MslI locus, the frequencies of T and C alleles were 0.875 and 0.125, respectively. Significant differences between genotypes were found: TT cow produced a milk with a higher content of fat and protein when compared with TC.
KeywordsSTAT5A Gene polymorphisms Agerolese cattle breed Milk yield Milk quality
Compliance with ethical standards
Conflict of interest
The authors declare that they have no conflict of interest.
- AIA (2014) Quadro economico e Relazione attività 2013. www.aia.it
- Falconer DS, Mackay TFC (1996) Introduction to quantitative genetics, 4th edn. Longman Group Ltd, EssexGoogle Scholar
- Felius M (1995) Cattle breeds: an encyclopedia. Misset, DoetinchemGoogle Scholar
- Flisikowski K, Oprzdek J, Dymnicki E, Zwierzchowski L (2003a) New polymorphism in bovine STAT5A gene and its association with meat production traits in beef cattle. Anim Sci Pap Rep 21:147–157Google Scholar
- Flisikowski K, Strzałkowska N, Słoniewski K, Krzyzewki J, Zwierzchowski L (2004b) Association of a sequence nucleotide polymorphism in exon 16 of the STAT5A gene with milk production traits in Polish Black-and- White (Polish Friesian) cows. Anim Sci Pap Rep 22:515–522Google Scholar
- Peretti V, Ciotola F, Iannuzzi L (2013) Characterization, conservation and sustainability of endangered animal breeds in Campania (Southern Italy). Nat Sci 5:1–9Google Scholar
- Selvaggi M, Tufarelli V, Pinto F, Centoducati G, Dambrosio A, Santacroce MP, Dario C (2013) Bovine STAT5A gene polymorphism analysis and its association with milk composition traits in Jersey cows. Intl J Biosci Biochem Bioinform 4:341–344Google Scholar
- Seyfert H, Pitra C, Meyer L, Brunner RM, Wheeler TT, Molenaar A, McCracken JY, Herrmann J, Thiesen H, Schwerin M (2000) Molecular characterization of STAT5A- and STAT5B-encoding genes reveals extended intragenic sequence homogeneity in cattle and mouse and different degrees of divergent evolution of various domains. J Mol Evol 50:550–561CrossRefPubMedGoogle Scholar
- Suguisawa L, Souza AA, Oliveira HN, Curi RA, Silveira AC (2006) Relationship between growth hormone and STAT5A genes polymorphisms and beef cattle growth, carcass and meat quality traits. In: 8th world congress on genetics applied to livestock production, August 13–18, 2006, Belo HorizonteGoogle Scholar