PT  - JOURNAL ARTICLE
AU  - Gazdová, Veronika
AU  - Humpolíček, Petr
AU  - Déduchová, Vanda
AU  - Filkuková, Jitka
AU  - Dvořák, Josef
TI  - Effect of C-CSN and B-CSN genotypes on milk production traits in Czech Flekvieh and Holstein breed
DP  - 2014 Nov 30
TA  - Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis
PG  - 55--58
VI  - 55
IP  - 1
AID - 10.11118/actaun200755010055
IS  - 12118516
AB  - The effect of the χ-casein (C-CSN) and β -casein (B-CSN) loci on the milk production traits (milk yield, fat, protein and lactose content) was estimated for 807 and 488 Czech Fleckvieh and 402 and 244 Holstein cows, respectively. Genotypes of C-CNS and B-CNS were determined by the use of PCR-RFLP method. The genotypes were detected by use of electrophoresis on agarose gel. The associations of studied polymorphisms with milk production traits were estimated using the mixed linear model procedure REML in SAS for Windows 9.1.3. Results indicated that protein content is significantly affected (P ≤ 0.01) by C-CSN genotype (genotype BB > AB > AA). Fat and lactose content were not affected by C-CSN locus. The B-CNS locus had no significant effect on any milk production traits.