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Contribution of domestic and Interbull records to reliabilities of single-step genomic breeding values in dairy cattle
data combining genomic selection
2015/7/7
The method of approximating reliabilities of genomic breeding values in the single-step genomic
BLUP evaluation procedure of Misztal et al. (2013) was used to evaluate the increase in reliability of...
Short communication. An association between the G/A single nucleotide polymorphism within intron II of VIP gene and milk performance traits in dairy cattle
vasoactive intestinal peptide lactation milk utility traits
2014/10/28
Single nucleotide polymorphisms (SNPs), which are present in the encoding part of the genes responsible for important breeding functions, exert an influence on the cattle’s phenotype since their funct...
Association of Length of Pregnancy with Other Reproductive Traits in Dairy Cattle
Holstein-Friesian Breed, Calving Ease, Stillbirth Rates, Heritability, Genetic Correlations
2016/5/9
The experiment involved observations of 2,514 Holstein-Friesian cows to determine the effects of environmental factors (cow’s age, calving season, weight and sex of calves, housing system) and genetic...
Associations of stockpersons’ personalities and attitudes with performance of dairy cattle herds
dairy cows dairy farms human-animal relationship personality traits NEO Big Five attitudes vocational choice
2015/6/1
We collected questionnaires from 128 stockpersons on 31 Czech dairy farms with the aim to examine three questions: (i) whether the stockpersons’ personality profiles, their attitudes and beliefs about...
Studies on the Development of Novel 305 day Adjustment Factors for Production Traits in Dairy Cattle
Novel 305 day Adjustment Factors Multiplicative Correlation Coefficients Percent Squared Bias (PSB)
2016/4/18
This study was conducted to develop a novel adjustment factors for 305 days using 138,103 lactation records and 1,770,764 daily records, which were based on environmental circumstances such as herd ye...
Effect of Using Progesterone Releasing Intravaginal Device with Ovsynch Program on Reproduction in Dairy Cattle during Summer Season
Dairy Cows Estrus-synchronization TAI Progesterone Fertility Summer
2016/4/14
Sixty postpartum lactating Friesian cows in 3 treatments at a commercial dairy farm were used to study the effect of using progesterone supplementation with GnRH and PGF2a synchronization with and wit...