Effects of beta-kappa-casein (CSN2-CSN3) haplotypes, beta-lactoglobulin (BLG) genotypes, and detailed protein composition on coagulation properties of individual milk of Simmental cows

Journal of Dairy Science
V BonfattiP Carnier

Abstract

The aim of this study was to investigate the effects of CSN2-CSN3 (beta-kappa-casein) haplotypes, BLG (beta-lactoglobulin) genotypes, content of milk protein fractions, and protein composition on coagulation properties of milk (MCP). Rennet coagulation time (RCT) and curd firmness (a(30)) were measured using a computerized renneting meter, and the contents of major milk protein fractions were quantified by reversed-phase HPLC in individual milk samples of 2,167 Simmental cows. Cow genotypes at CSN2, CSN3, and BLG were ascertained by reversed-phase HPLC, and CSN2-CSN3 haplotype probabilities were estimated for each cow. Phenotypes for MCP were regressed on CSN2-CSN3 haplotype probabilities using linear models that also included the effects of herd-test-day, parity, days in milk, pH, somatic cell score, renneting meter sensor, sire of the cow, BLG genotype, and content of major protein fractions or, alternatively, protein composition. When the statistical model did not account for protein fraction contents or protein composition, haplotypes carrying CSN3 B were associated with shorter RCT and greater a(30) compared with those carrying CSN3 A. Haplotypes carrying CSN2 B had the effect of decreasing RCT and increasing a(30) relativ...Continue Reading

References

Nov 1, 1984·The Journal of Dairy Research·D M McLeanH A McKenzie
Mar 28, 2008·Journal of Animal Breeding and Genetics = Zeitschrift Für Tierzüchtung Und Züchtungsbiologie·E HallénA Lundén
Feb 24, 2009·Journal of Dairy Science·J M L HeckA C M van Hooijdonk

❮ Previous
Next ❯

Citations

Mar 31, 2012·Journal of Dairy Science·A CecchinatoG Bittante
Dec 17, 2014·Journal of Dairy Science·V R GregersenC Bendixen
Oct 29, 2011·Journal of Dairy Science·M J M RuttenJ A M van Arendonk
Oct 2, 2012·Journal of Dairy Science·G BittanteA Cecchinato
Feb 18, 2019·Journal of Dairy Science·Nicolò AmalfitanoGiovanni Bittante
Dec 8, 2016·Journal of Applied Genetics·A Said AhmedG A Brockmann
May 24, 2020·Animals : an Open Access Journal From MDPI·Sara AlbarellaFrancesca Ciotola
Nov 28, 2016·Journal of Dairy Science·C DadousisA Cecchinato
Aug 18, 2021·Food Research International·Helmut K MayerEva-Maria Halbauer

❮ Previous
Next ❯

Related Concepts

Related Feeds

Blood Clotting Disorders

Thrombophilia includes conditions with increased tendency for excessive blood clotting. Blood clotting occurs when the body has insufficient amounts of specialized proteins that make blood clot and stop bleeding. Here is the latest research on blood clotting disorders.