The aim of thisstudy was to determine the effect of early hybrids with different FAO number(220, 230, 260 and 280) harvested in milk-wax maturity stage on nutritive valueand parameters of fermentation process of whole plant maize silages. In laboratory conditions we conserved maize hybrids without additive in laboratory silos with volume 4 dm3. After 1 month of fermentation process the nutrient content (dry matter, crude protein, fat, nitrogen free extract, starch and organic matter) and parameters of fermentation (lactic acid, acetic acid,butyric acid, alcohols, active acidity and acidity of water extract) were analysed in the average samples. Dry matter content of maize silages ranged from 262.7to 310.5 g.kg-1. Significantly the highest content of dry matter (P<0.05)was found in silages with FAO number 230. Compared to the silages FAO 260 we found the significantly higher content (P<0.05)of fat in silages FAO 230. Mentioned silages had the highest content of organic matter (P<0.05) and starch. Content of lactic acid in maize silages was higher than 10g per 1kg of original matter in all silages. The highest content of lactic acid was found in maize silage FAO 220. The content of acetic acid in all maize silages did not exceed 20.0 g.kg-1 of DM and the highest content was detected in silages FAO260 and FAO 280. In the maize silages FAO 260 we determined the lowest content of alcohols and the lowest value of pH.

In this study, we have analyzed the effects of astaxanthin and β -carotene on the skin colour of fish Kissing Gourami (Helostoma temminckii). 80 fishes were randomly selected into 2 groups (40 each group) and were kept in 200 l tanks with two air pumps and one sponge filter. Fish were fed with commercial dry feed mixture. The control group fish were fed with standard flake feed. Astaxanthin (100 mg.kg-1) and β-carotene (150 mg.kg-1) were added to the standard diet for experimental group. Fish skin colour was compare with colour scale. Colour change was recorded weekly for the 12 weeks of experiment. First colour change was record in 6 th week in control group when 24 fish were colored light pink. No other change of colour was determinate. In experimental group was first colour change in 4th week when 31 fish were colored light pink. At 6 weeks, the 30 fish was pink. Maximal influence of astaxanthin and β -carotene was recorded in 10th week (light red). At the end of the experiment all 40 pieces of fish red light. Therefore, it was determined that these pigment sources have an effect on the colour of gourami fish.

The aim of the study was to evaluate the genetic diversity in Slovak dual-purpose (dairy) and beef Pinzgau cattle. Reference population consisted of 3425 living cows (of those 2501 dairy and 924 suckler cows) involved in animal recording. The average number of fully generations traced was 0.99 and 1.17 in dairy and suckler cows, respectively and the average complete generations equivalent was 2.78 in dairy population and 3.19 in beef population. Inbreeding coefficient was computed from three, five, seven and ten generations traced. The results of inbreeding analysis show increasing trend of inbreeding coefficient with increasing number of generations traced taken into account. The average inbreeding coefficient F5 was 0.3599% and 0.1112% in dairy and beef reference populations, respectively. The difference between inbreeding coefficient F3and F10 was 0.0778% in dairy cows and 0.0537% in suckler cows. The difference between F7 and F10 values was minimal. Overall, inbreeding level in dairy population was higher than in beef population. The average increase in inbreeding was 0.2070% in dairy and 0.0402% in beef population. The effective number of founders, effective number of ancestors and effective number of founder genomes was 210; 82 and 63.49 in dairy population, respectively and 293; 95 and 60.62 in beef population, respectively. These results point out bottleneck effect occurance in given populations. Further population reduction can lead to serious inbreeding problems. Regular monitoring of genetic diversity including inbreeding trends is necessary to use this information in population management.

The effect of different soil management practices in a vineyard on water availability was studied. In 2006, an experiment of the different soil management practices in a productive vineyard in Rendzic Leptosol was established in the locality of Nitra-Dražovce (Nitra wine-growing area). In 2012, the soil samples were collected from all treatments: 1. G (grass without fertilization), 2. T (tillage), 3. T+FYM (tillage+farmyard manure), 4. G+NPK3 (grass+NPK 120-55-195 kg/ha – 3rd intensity of fertilization for vineyards), 5. G+NPK1 (grass+NPK 80-35-135 kg/ha – 1st intensity of fertilization for vineyards). Obtained results showed that the highest values of soil moisture were determined in T and T+FYM treatments. In G+NPK3, the average value of soil moisture was lower in comparison to other treatments. In the soil profile of T treatment, the highest content of storage moisture (69.5 l.m-2) was observed, however, in the soil profile of G+NPK3, the lowest content (46.9 l.m-2) was determined. In comparison to control (G), the average values of available water capacity in T, T+ FYM, G+NPK1 and G+NPK3 were lower by 13%, 7%, 44%, and 65% respectively. The higher doses of nutrients had a negative effect on values of available water capacity. Soil management practices in the vineyard had a statistically significant influence on values of available water storage; while in T the highest value was observed. In G, G+NPK1 as well as in G+NPK3, this water category was absent. Between soil organic content, its labile forms, and soil moisture negative correlation were observed. Hot-water soluble carbon (r=0.405, P<0.05), quality (r=-0.502, P<0.01) and stability of soil organic matter (r=0.359, P<0.05) correlated with available water capacity. At the same time we determined statistically significant correlation between particle-size distribution and parameters of water availability.

The aim of the study was to evaluate the platelet count (PLT), platelet percentage (PCT), mean platelet volume (MPV) and platelet distribution width (PDWc) in different sampling time during the first 12 hours of piglets life. Together 8 newborn piglets were included in this study. Blood samples were collected before colostrum intake (0 hour) and at 3rd, 6th and 12th hour after first colostrum intake by newborn piglets. Heparinized blood samples were used for PLT, PCT, MPV and PDWc determinations. Blood samples were analyzed using haematological analyser Abacus Junior Vet. The results were statistically analyzed by a one-way ANOVA, the differences in average means of blood cells between different sampling times were tested with T-test. No significant difference (P>0.05) were found in platelet count, platelet percentage as well as platelet mean volume between different sampling times. We found significant difference (P<0.05) in platelet distribution width between time of birth and other sampling times. We can conclude that newborn piglets as well as piglets at 6th and 12th hour of their life suffer from thorombocytopenia.