Czech Journal of Animal Science, 2018 (vol. 63), issue 5
Associations between gene polymorphisms, breeding values, and glucose tolerance test parameters in German Holstein siresOriginal Paper
Jindřich Čítek, Lenka Hanusová, Michaela Brzáková, Libor Večerek, Lothar Panicke, Lucie Lískovcová
Czech J. Anim. Sci., 2018, 63(5):167-173 | DOI: 10.17221/8/2017-CJAS 
The association between several gene polymorphisms, the estimated breeding values for milk performance traits, and glucose metabolism measured by the glucose tolerance test (GTT) in German Holstein sires were evaluated. Polymorphisms in DGAT1, GH1, GHR, FASN, and OLR1 genes were not associated with the GTT. A significant relationship was obtained for the DGAT1 AA/GC polymorphism and estimated breeding values for milk performance (milk yield, fat and protein yield, fat and protein percentage). The polymorphism in GHR was significantly associated with estimated breeding values for fat yield,...
Effects of zinc sources and levels on zinc bioavailability, blood parameters, and nutrient balance of male mink (Neovison vison)Original Paper
Hu Cui, Hao Nie, Tie-tao Zhang, Zhong-cheng Wang, Xiuh-ha Gao, Fu-he Yang, Xiu-mei Xing, Bo Shi
Czech J. Anim. Sci., 2018, 63(5):174-181 | DOI: 10.17221/34/2017-CJAS
The objective of this study was to investigate the effects of different sources and levels of zinc (Zn) on nutrient digestibility, plasma metabolites, and relative Zn bioavailability in male mink. Animals in the control group were fed a basal diet, consisting mainly of corn, soybean oil, meat and bone meal, and fish meal, with no Zn supplementation. Mink in the other 9 treatments were fed the basal diet supplemented with Zn from grade Zn sulfate (ZnSO4. 7H2O), Zn glycinate (ZnGly), or Zn pectin oligosaccharides (ZnPOS) chelate at concentrations of either 100, 300, or 900 mg Zn/kg dry matter. The results...
Negative effect of phytase superdosing in laying hensOriginal Paper
Miloš Skřivan, Michaela Englmaierová, Věra Skřivanová
Czech J. Anim. Sci., 2018, 63(5):182-187 | DOI: 10.17221/113/2017-CJAS
Hisex hens, aged 24 weeks, were divided into 6 groups. Each group consisted of 4 cages with 10 hens per cage with dimensions and equipment meeting the EU directives. This 2 × 3 factorial experiment included two levels of calcium (Ca; 35 or 42 g/kg) and 3 different additions of 6-phytase OptiPhos® (Ph; 0, 300, and 1500 phytase units (FTU)/kg) to the diet. The content of nonphytate phosphorus (NPP) in all diets was the same (1.8 g/kg). The experiment lasted 12 weeks. A significant interaction of Ph × Ca (P = 0.029) was observed in hen-day egg production. A diet with 35 g/kg Ca and the highest dose of Ph (1500 FTU/kg) resulted...
Alternative polyadenylation and polymorphisms of 3'untranslated regions of bovine BBOX1 geneOriginal Paper
Guo-li Zhou, Yang Cao, You-zhi Xin, Yu-fei Song, Hai-guo Jin
Czech J. Anim. Sci., 2018, 63(5):188-194 | DOI: 10.17221/105/2016-CJAS
l-Carnitine, a key element in fatty acid metabolism and energy production, is biosynthesized from gamma-butyro-betaine by the catalysis of gamma-butyrobetaine hydroxylase (BBOX1). We cloned three different 3'untranslated regions (3'UTRs) alternative polyadenylation (APA) transcripts of the BBOX1 gene with different 3'UTR length (GenBank Accession Nos. KX431577, KX431578, KX431579). Two polymorphisms, NM_001101881.2: g.1797_1798insTGC and g.1935T>C, were revealed in 3'UTR of BBOX1 gene. They created or disrupted a restriction site for endonuclease BbvI and HincII, respectively. Moreover, the single nucleotide polymorphism...
Evaluation of genetic variability of the breed Norik of Muran according to pedigree informationOriginal Paper
Marko Halo, Eva Mlyneková, Michaela Horná, Monika Ivančíková, Andrea Hrdá
Czech J. Anim. Sci., 2018, 63(5):195-200 | DOI: 10.17221/20/2017-CJAS
The Norik of Muran, a unique draught horse bred in Slovakia, belongs to country's biodiversity treasures. The genetic diversity of this horse type was evaluated on the basis of indicators derived from the common ancestry and the probability of gene origin. The pedigree file of the analyzed horses involved 115 individuals (15 stallions and 100 mares). The number of complete generations was 4.49 on average. The maximum number of ancestor generations at the examined population of living horses was 5.38 and the equivalent number in the generation of ancestors was 5.14. The highest average length of the generation interval was 10.97 years...