Repositorio UFRO · Omeka S

Stearoyl CoA desaturase and fatty acid synthase gene polymorphisms and milk fatty acid composition in Chilean Black Friesian cows

Primer Autor	Inostroza, Karla B.
Co-autores	Scheuermann, Erick S. Sepulveda, Nstor A.
Título	Stearoyl CoA desaturase and fatty acid synthase gene polymorphisms and milk fatty acid composition in Chilean Black Friesian cows
Editorial	UNIV ANTIOQUIA, FAC CIENCIAS AGRARIAS
Revista	REVISTA COLOMBIANA DE CIENCIAS PECUARIAS
Lenguaje	en
Resumen	Background: in recent years, market attention has increasingly focused on improving the quality of dairy products. Therefore, animal selection for healthier milk fatty acid composition are therefore of interest. Objective: the aim of this study was to identify whether two polymorphisms (c.878T>C in the SCD gene and g.17924A>G in the FASN gene) are related with the fatty acid composition of milk. Methods: individual milk samples were collected from 50 Chilean Black Friesian cows. Fatty acids (FA) from each milk sample were extracted, analyzed, and quantified (mg FA/g of milk) by gas chromatography. The genotype of each sample was also determined using PCR-RFLP (Polymerase Chain Reaction - Restriction Fragment Length Polymorphism). Results: milk from cows with a c.878CC genotype in the SCD gene exhibited a greater content of C14:1, C17:1, C18:1n9t, C18:1n9c, and total monounsaturated fatty acids (MUFA), as well as a higher 14:1/14 ratio than other SCD genotypes. In addition, considering the importance of the predominant isomer of conjugated linoleic acid for human diet, we identified a higher content of cis-9, trans-11 conjugated linoleic acid in milk samples from animals that had the c.878CC genotype. For the FASN gene, cows with the g.17924GG genotype presented high contents of C14:0, C16:0, C18:0, C18:1n9t, C18:1n9c, and MUFA. Conclusion: therefore, these polymorphisms could be useful genetic markers for studying the fatty acid composition of dairy milk.
Tipo de Recurso	Artículo original
Description	We are grateful to the Comision Nacional de Investigacion Cientifica y Tecnologica (CONICYT Chile) for the financial support of this study. We are grateful to the Comision Nacional de Investigacion Cientifica y Tecnologica (CONICYT Chile) for the financial support of this study.
Formato Recurso	pdf
Palabras Claves	conjugated linoleic acid monounsaturated SNP CONJUGATED LINOLEIC-ACID FASN ácido linoleico conjugado monoinsaturado SNP ÁCIDO LINOLÉICO CONJUGADO FASN
Materias	conjugated linoleic acid monounsaturated SNP CONJUGATED LINOLEIC-ACID FASN ácido linoleico conjugado monoinsaturado SNP ÁCIDO LINOLÉICO CONJUGADO FASN
Disciplinas de la OCDE	Ciencia Animal y lechería Genética y Herencia Biotecnología agrícola
Título de la cita (Recomendado-único)	Stearoyl CoA desaturase and fatty acid synthase gene polymorphisms and milk fatty acid composition in Chilean Black Friesian cows
Revista/Libro	REVISTA COLOMBIANA DE CIENCIAS PECUARIAS
Idioma	en
Identificador del recurso (Mandatado-único)	Artículo original
Versión del recurso (Recomendado-único)	versión publicada
Entidad financiadora	ANID CONICYT
Referencia del Financiador (Mandatado si es aplicable-repetible)	ANID CONICYT
Editorial	UNIV ANTIOQUIA, FAC CIENCIAS AGRARIAS
ISSN	0120-0690
Página de inicio (Recomendado-único)	263
Página final (Recomendado-único)	269
Categoría WOS	Agricultura, Lácteos y Ciencias Animales Agriculture, Dairy & Animal Science
Formato	pdf
Id de Web of Science	WOS:000332473100004