Czech Journal of Animal Science, 2016 (vol. 61), issue 8
Production value and cost-effectiveness of pig fattening using liquid feeding or enzyme-supplemented dry mixes containing rye grainOriginal Paper
T. Schwarz, A. Turek, J. Nowicki, R. Tuz, B. Rudzki, P.M. Bartlewski
Czech J. Anim. Sci., 2016, 61(8):341-350 | DOI: 10.17221/73/2015-CJAS 
The aim of this study was to assess the cost-effectiveness of a fermented liquid feeding and enzyme supplementation of dry fodders containing rye grain for pig fattening. Two experiments were performed on 126 gilts (82 in Experiment 1 and 44 in Experiment 2) of hybrid Pig Improvement Company (PIC) lines. In both experiments, the pigs were randomly divided into two equinumeric groups (treatment vs control). In Experiment 1, the treatment group received a diet containing 25% of rye grain (cultivar Visello) in the grower and 50% in the finisher period, replacing a proportion of barley from control mixes, and the fodders were given as pre-fermented liquid...
Effect of maize kernel endosperm type and maturity stage on ruminal in situ degradability and post-ruminal in vitro dry matter and starch digestibilityOriginal Paper
J. Třináctý, J. Nedělník, J. Lang, R. Loučka, J. Kučera
Czech J. Anim. Sci., 2016, 61(8):351-359 | DOI: 10.17221/62/2015-CJAS
The objective of this study was to evaluate the interaction effect of maize grain texture (dent vs semi-flint) and two different stages of maturity (1/2 vs 3/4 milk line) on ruminal starch degradability and total tract digestibility using in situ and combined in situ-in vitro methods, respectively. The content of whole plant dry matter was 324.6 vs 399.5 g/kg (1/2 vs 3/4 milk line, respectively) for dent maize and 330.2 vs 401.3 g/kg for semi-flint maize. Organic nutrients (neutral detergent fibre, crude protein, ether extract, starch), 1000-grain weight, vitreousness, and mean particle size were determined. The evaluation was performed...
Peroxisome proliferator activated receptor ligands affect porcine endometrial steroids production during the estrous cycle and early pregnancy: an in vitro studyOriginal Paper
A. Kurzyńska, M. Bogacki, K. Chojnowska, I. Bogacka
Czech J. Anim. Sci., 2016, 61(8):360-368 | DOI: 10.17221/95/2015-CJAS
In the present study, we investigated the effect of PPAR ligands on progesterone (P4) and 17β-estradiol (E2) secretion, as well as 3β-hydroxysteroid dehydrogenase/Δ(5)-Δ(4) isomerase (3β-HSD) mRNA expression, in porcine endometrial slices collected on days 10-12 and 14-16 of the estrous cycle or early pregnancy. The explants were incubated in vitro for 6 h in the presence of PPARα ligands - WY-14643 (agonist) and MK 886 (antagonist); PPARβ ligands - L-165041 (agonist) and GW 9662 (antagonist); PPARγ ligands - 15d-prostaglandin J2 and rosiglitazone (agonists)...
Variance components, heritability estimates, and breeding values for performance test traits in Old Kladruber horsesOriginal Paper
A. Novotná, A. Svitáková, J. Schmidová, J. Přibyl, H. Vostrá-Vydrová
Czech J. Anim. Sci., 2016, 61(8):369-376 | DOI: 10.17221/87/2015-CJAS
The Old Kladruber horse is an important Czech genetic resource. In the current study, two categories of traits were evaluated - the first, a numerical score for Type and Gender Expression and the second, 11 traits describing performance divided into four categories: (1) Rideability (Overall Impression, Rideability), (2) Gaits (Walk, Trot, Canter), (3) Carriage Drivability (Dressage Test, Obstacle Driving Test, Marathon Test), and (4) Reliability in Tug (First Tug, Second Tug, Third Tug). The original data set contained records from 700 individuals from the period 1995-2014, each horse having 3-5 performance evaluations for the suite of traits. Our...
Effect of the FGF2 SNP11646 on milk production and fertility traits of Holstein cattleOriginal Paper
M. Brzáková, B. Hosnedlová, A. Svitáková, K. Vernerová, Z. Veselá, J. Čítek
Czech J. Anim. Sci., 2016, 61(8):377-382 | DOI: 10.17221/61/2015-CJAS
The objective of this study was to estimate the effect of a single-nucleotide polymorphism (SNP11646) in the FGF2 (Fibroblast Growth Factor 2) gene on the deregressed proof of breeding values (DRP) of Holstein sires (n = 149) for milk traits (milk yield, fat yield and percentage, and protein yield and percentage) and fertility (relative breeding value for own fertility - conception rate of heifers, cows, all females inseminated by the sperm of the sire; relative breeding value for conception rate of daughters - heifers, cows, all females). The differences between genotypes for milk performance were not significant. The lowest DRP...