Czech Journal of Animal Science, 2015 (vol. 60), issue 12
Volume 60, Contents Author Index 2015Index
editors
Czech J. Anim. Sci., 2015, 60(12):I-IX | DOI: 10.17221/8600-CJAS 
Current use of phytogenic feed additives in animal nutrition: a reviewReview
K. Karásková, P. Suchý, E. Straková
Czech J. Anim. Sci., 2015, 60(12):521-530 | DOI: 10.17221/8594-CJAS
A rapid development in the potential use of phytogenic feed additives has occurred mainly due to the 2006 EU ban on the use of antimicrobial substances as growth stimulators; however, they are also used as sensory, technological additives or substances positively affecting the quality of animal products. The use of phytogenic additives in form of extracts, predominantly essential oils, has been tested in a number of animal species; however, there is still a lack of scientific findings on the safety and efficacy of their use, or on their effect on the quality of animal products. The aim of this review was to sum up current scientific knowledge on phytogenic...
Effect of the ratios of acetate and β-hydroxybutyrate on the expression of milk fat- and protein-related genes in bovine mammary epithelial cellsOriginal Paper
R. Sheng, S.M. Yan, L.Z. Qi, Y.L. Zhao, L. Jin, X.Y. Guo
Czech J. Anim. Sci., 2015, 60(12):531-541 | DOI: 10.17221/8595-CJAS
The objective of this study was to evaluate the effects of the different ratios of acetate and β-hydroxybutyrate (BHBA) on cell viability, triacylglycerol (TAG) content, and mRNA expression of the genes related to lipid and protein synthesis in bovine mammary epithelial cells (BMECs). Primary cells were isolated from the mammary glands of Holstein dairy cows and were passaged twice. Then, the cells were cultured with different ratios of acetate and BHBA (1 : 3, 1 : 2, 1 : 1, 2 : 1, 3 : 1, 4 : 1, and 1 : 1, Group 1 to Group 7, respectively) for 48 h, and the fetal bovine serum in the culture media was replaced with fatty acid-free bovine serum...
Effects of a low-phosphorus diet and exogenous phytase on performance, egg quality, and bacterial colonisation and digestibility of minerals in the digestive tract of laying hensOriginal Paper
M. Englmaierová, M. Skřivan, E. Skřivanová, I. Bubancová, L. Čermák, J. Vlčková
Czech J. Anim. Sci., 2015, 60(12):542-549 | DOI: 10.17221/8596-CJAS
The objective of the experiment was to determine the effects of different levels of phytase (0, 150, 250, and 350 phytase units (FTU)/kg; F) produced by Aspergillus niger in the diets of hens fed decreased contents of non-phytate phosphorus (1.8 and 2.1 g/kg; NPP) on the hen performance, egg quality, digestibility of calcium and phosphorus in the ileum, and representation of bacterial species in the ileum and caecum. The diet with 2.1 g/kg of NPP and 350 FTU/kg significantly decreased egg weight (P < 0.001) and egg mass production (P < 0.001). However, this treatment had the highest values for shell percentage (P...
Effect of light colour on egg production and egg contaminationOriginal Paper
J. Svobodová, E. Tůmová, E. Popelářová, D. Chodová
Czech J. Anim. Sci., 2015, 60(12):550-556 | DOI: 10.17221/8597-CJAS
The objective of this study was to compare the performance of laying hens, quality of air in poultry house, and microbial contamination of eggshell in laying hens kept under blue, green, red, and yellow light colour in enriched cages. The daily photoperiod consisted of 15 h light, light intensity of 10 lx at bird head level. The laying performance characteristics (hen-day egg production, mortality, and egg weight) were not affected by light colour. Similarly, microbial contamination of the air was not significantly different related to the light colour. There were significant interactions in eggshell contamination between the position of the cage floor...
Effects of feed intake restriction during late pregnancy on maternal metabolic changes and fetal development in ewesOriginal Paper
C.Z. Zhang, Y.C. Liu, F. Gao
Czech J. Anim. Sci., 2015, 60(12):557-563 | DOI: 10.17221/8598-CJAS
This study investigated the effects of feed intake restriction during late pregnancy on maternal metabolic changes and fetal development in ewes. Six ewes out of 35 Mongolian ewes were slaughtered at the beginning of the experiment and the remaining 29 animals were allocated to three different groups: Restricted Group 1 (RG1; 0.175 MJME BW-0.75/day, n = 12), Restricted Group 2 (RG2; 0.33 MJME BW-0.75/day, n = 9), and Control Group (CG; ad libitum, 0.67 MJME BW-0.75/day, n = 8). At 140 days (d) of gestation, 6 representative ewes from each group were slaughtered. The results indicated...
Application of mtDNA markers for European huchen (Hucho hucho Linnaeus, 1758) management in PolandOriginal Paper
M. Kucinski, D. Fopp-Bayat, D. Zivna, T. Liszewski, V. Svinger, I. Lebeda
Czech J. Anim. Sci., 2015, 60(12):564-569 | DOI: 10.17221/8599-CJAS
Four broodstocks of European huchen (Hucho hucho) from Poland, Germany, Slovakia, and Ukraine were investigated using five selected fragments of mtDNA. The mitochondrial DNA sequence analysis was successfully applied to the Polish and German broodstocks of European huchen for the first time. A very low haplotype (h = 0.097) and nucleotide (π = 0.00013) diversity across 3573 bases of mtDNA fragments (partial regions of NADH-1, NADH-5, ATPase 6, Cytochrome b, and D-loop) evidenced by three closely related mtDNA haplotypes were found. The analysis of pairwise genetic differentiation (Fst)...