Joint effects of CSN3 and LGB genes on milk quality and coagulation properties in Czech Fleckvieh
2008
Matejicek, A.,Vyzkumny Ustav Zivocisne Vyroby, Prague (Czech Republic) | Matejickova, J.,Vyzkumny Ustav Zivocisne Vyroby, Prague (Czech Republic) | Stipkova, M.,Vyzkumny Ustav Zivocisne Vyroby, Prague (Czech Republic) | Hanus, O.,Vyzkumny Ustav pro Chov Skotu, Rapotin (Czech Republic) | Gencurova, V.,Vyzkumny Ustav pro Chov Skotu, Rapotin (Czech Republic) | Kyselova, J.,Vyzkumny Ustav Zivocisne Vyroby, Prague (Czech Republic) | Nemcova, E.,Vyzkumny Ustav Zivocisne Vyroby, Prague (Czech Republic) | Kott, T.,Vyzkumny Ustav Zivocisne Vyroby, Prague (Czech Republic) | Sefrova, J.,Vyzkumny Ustav Zivocisne Vyroby, Prague (Czech Republic) | Krejcova, M.,Vyzkumny Ustav Zivocisne Vyroby, Prague (Czech Republic) | Melcova, S.,Vyzkumny Ustav Zivocisne Vyroby, Prague (Czech Republic) | Hoelzelova, I.,Vyzkumny Ustav Zivocisne Vyroby, Prague (Czech Republic) | Bouska, J.,Vyzkumny Ustav Zivocisne Vyroby, Prague (Czech Republic) | Frelich, J.,Jihoceska Univ., Ceske Budejovice (Czech Republic)
The aim of this study was to determine the joint effects of CSN3 and LGB genotypes on parameters of production, quality and coagulation of milk in Czech Fleckvieh cows. Three hundred and twenty-eight Czech Fleckvieh cows were determined for kappa-casein (CSN3) and beta-lactoglobulin (LGB) genotypes using the PCR-RFLP method, milk quality and coagulation properties. Fifteen genotype combinations were detected, with ABAB (21.0%) and AAAB (18.3%) occurring as the most frequent. The observed genes significantly affected the contents of milk protein (crude protein, true protein, casein and whey protein) as well as solid non-fat in milk, casein number and curd quality. BBAA was found to be the genotype with the highest positive impact on most of the milk characteristics evaluated. ABBB, BBBB, BBAB and ABAB had a positive influence on milk quality and milk coagulation properties, whereas genotypes containing CSN3 allele E had a negative effect.
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