titoli, abstracts, parole chiave >>>
Effects of β-lactoglobulin, stearoyl-coenzyme A desaturase 1, and sterol regulatory element binding protein gene allelic variants on milk production, composition, acidity, and coagulation properties of Brown Swiss cows

Cecchinato, Alessio and Ribeca, Claudio and Maurmayr, Alice and Penasa, Mauro and De Marchi, Massimo and Macciotta, Nicolò Pietro Paolo and Mele, Marcello and Secchiari, Pierlorenzo and Pagnacco, Giulio and Bittante, Giovanni (2012) Effects of β-lactoglobulin, stearoyl-coenzyme A desaturase 1, and sterol regulatory element binding protein gene allelic variants on milk production, composition, acidity, and coagulation properties of Brown Swiss cows. Journal of Dairy Science, Vol. 95 (1), p. 450-454. ISSN 0022-0302. Article.

Full text not available from this repository.

DOI: 10.3168/jds.2011-4581

Abstract

Associations of allelic variants of the β-lactoglobulin (LGB), stearoyl-coenzyme A desaturase 1 (SCD), and sterol regulatory element binding protein (SREBP-1) genes with milk production, composition (fat, protein, and casein content), acidity (pH and titratable acidity), and coagulation properties (rennet coagulation time and curd firmness) were investigated in Brown Swiss cows. In total, 294 animals (progeny of 15 sires) reared in 16 herds were milk-sampled once. The additive effects of LGB (rs109625649:C > T), SCD (ss469414220:C > T), and SREBP-1 (AB355704: g.101_185ins) polymorphisms on the aforementioned traits were analyzed through Bayesian linear models. The LGB genotype affected rennet coagulation time, with TT (or BB) alleles showing longer rennet coagulation time compared with CC (or AA) cows. The SCD gene allelic variants were found to be associated with protein and casein contents and curd firmness: CC animals had the lowest values for the aforementioned traits. An association was found between SREBP-1 alleles and fat content, with the highest values for cows carrying the 84-bp insertion (or L) allele. Results suggest a possible use of these loci in gene-assisted selection programs for the improvement of milk quality traits and coagulation properties in Brown Swiss cattle.

Item Type:Article
ID Code:7667
Status:Published
Refereed:Yes
Uncontrolled Keywords:β-lactoglobulin (LGB), stearoyl-coenzyme A desaturase (SCD), sterol regulatory element binding protein (SREBP-1), milk coagulation property
Subjects:Area 07 - Scienze agrarie e veterinarie > AGR/17 Zootecnica generale e miglioramento genetico
Divisions:001 Università di Sassari > 01-a Nuovi Dipartimenti dal 2012 > Agraria
Publisher:Elsevier
ISSN:0022-0302
Deposited On:04 Jun 2012 10:11

I documenti depositati in UnissResearch sono protetti dalle leggi che regolano il diritto d'autore

Repository Staff Only: item control page