Estudio del polimorfismo Hinfi del gen Pit-1 y su asociación con características de tipo, producción de leche y días abiertos de vacas Holstein en el departamento de Antioquia, Colombia

ABSTRACT: The aim of this study was to determine allele and phenotypic frequencies for single nucleotide polymorphism (SNP) of exon VI in the Pit-1 gene and their associations with type traits, milk yield, and days open. A total of 390 Holstein cows from Antioquia (Colombia) were genotyped for the Pit-1 Hin polymorphism by PCR-RFLP. We found AA, AB, and BB genotypes with a frequency of 0.03, 0.43, and 0.53, respectively. The A allele frequency was 0.35 and its presence in the genotype was associated with higher milk production, udder depth and body depth; the absence of the A allele in the genotype was associated with fewer days open. This study indicates that it is possible to develop breeding programs using the Pit-1 gene in Holstein cattle in the department of Antioquia.

• Autores: Cerón Muñoz, Mario Fernando; Corrales Álvarez, Juan David; Acevedo Valladarez, Cristina; Sepúlveda Restrepo, Jeannie Cerlyn; Cañas Álvarez, Jhon Jacobo; Moreno Ochoa, Manuel Antonio; Calvo Cardona, Samir Julián
• Tipo de recurso: Article of investigation
• Fecha de publicación: 2010
• Institución: Universidad de Antioquia
• Repositorio: Repositorio UdeA
• Idioma: spa
• OAI Identifier: oai:bibliotecadigital.udea.edu.co:10495/9710
• Acceso en línea: http://hdl.handle.net/10495/9710
• Palabra clave: Marcadores moleculares; Molecular marker; Ganado lechero; Dairy cattle; Ganado Holstein-Friesian; Holstein-friesian cattle; Mejoramiento animal; Animal breeding
• Rights: openAccess
• License: Atribución-NoComercial-CompartirIgual 2.5 Colombia (CC BY-NC-SA 2.5 CO)