Trabajo presentado en la 54ª Reunión Anual de la Sociedad Brasileña de Zootecnia, que se llevó a cabo del 24 al 28 de Julio de 2017, en Foz do Iguaçu, Brasil.
Autores: Silvina Quintana(1,3,) Maria Bakker(2), Guillermo Milano(2), Maria C. Ferragine(2), Laura Nadin(2), Mariana Recavarren(1)
(1) Laboratorio de Biología Molecular, Fares Taie Instituto de Análisis, Mar del Plata.
(2) Facultad de Ciencias Veterinarias, UNCPBA, Tandil.
Single Nucleotide Polymorphisms (SNPs) are genetic variants associated with several traits of beef cattle determining performance.
SNPs of Leptin, IGF-1 and NPY genes are strongly associated with better efficiency of feed use, known as low Residual Feed Intake (RFI), in feedlot cattle but also under grazing as recent research in Uruguay revealed.
Beef and dairy cattle from an important beef and dairy region of Argentina were genotyped for these SNPs, as a preliminar work of an ongoing project to study the relationship of SNPs with RFI and grazing behavior.