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Broucek J.,Research Institute of Animal Production Nitra | Cermak B.,University of South Bohemia
Ekologia Bratislava | Year: 2015

This review is devoted to methodology that can help to assess emission of gases from poultry housings and could be used to expand the knowledge base of researchers, policymakers and farmers to maintain sustainable environment conditions for farming systems. Concentration and emission of ammonia, methane, nitrous oxide and carbon dioxide in poultry barns are discussed in this paper. Surveys of ammonia and greenhouse gases mean concentrations and emission factors in diferent poultry systems are showed. This paper is also gives the findings in emission mitigation, especially to different manure handling practices, management schemes, housing and facility designs for broilers and laying hens. Finally this paper focused on investigating practical means to reduce air emissions from animal production facilities. Source

Sirotkin A.V.,Constantine the Philosopher University | Sirotkin A.V.,Research Institute of Animal Production Nitra | Sirotkin A.V.,King Saud University | Kardosova D.,Constantine the Philosopher University | And 2 more authors.
Reproductive Biology | Year: 2015

The effects of neuropeptide Y (NPY; 0, 10, 100 and 1000 ng/mL) on the expression of PCNA, bax and p53 were examined by immunocytochemistry in porcine luteinized granulosa cells. NPY inhibited proliferation as well as promoted apoptosis and accumulation of p53 in the cells. This is the first report to demonstrate the direct action of NPY on ovarian cell proliferation and apoptosis. The results of the study suggest that the effect is mediated by transcription factor p53. © 2015 Society for Biology of Reproduction & the Institute of Animal Reproduction and Food Research of Polish Academy of Sciences in Olsztyn. Source

Sistkova M.,University of South Bohemia | Dolan A.,University of South Bohemia | Broucek J.,Research Institute of Animal Production Nitra | Bartos P.,University of South Bohemia
Archiv Tierzucht | Year: 2015

according to the time of day and the season. The measurements were performed in a building for 1150 fattening pigs with a slatted floor during summer and winter. The pigs (average weight 95 kg) were kept in pens under a batch management system. Nine places were the focus of sound intensity measurements (one inside the stable in section 7; eight places outside the building). The measurements were performed during three sets of 5 consecutive days in summer and three sets in winter. On each day the data were obtained during three 30 min periods (before feeding, during feeding and after feeding). The measurement was made inside and outside the building at the same time. The level of noise depends very significantly upon the period of measurement (before feeding, during feeding, after feeding). The following values were recorded inside (place 1): 65.5 ± 1.6 dB before feeding, 72.0 ± 1.4 dB during feeding and 63.4 ± 0.7 dB after feeding (P <0.001). The effect of seasonal noise levels can be seen only in outside measurements (P <0.05; P <0.01). The comparison of measurement place 1 (inside, pen with pigs) with the other places outdoors showed significant differences in both observed factors (P <0.001). We can conclude that the noise in the pig housing depends significantly on the time of day. The season influences the noise outside the building, in particular. © Author(s) 2015. Source

Podkowka Z.,University Technologiczno Przyrodniczy Im iadeckich dgoszczy | Cermak B.,University of South Bohemia | Podkowka W.,University Technologiczno Przyrodniczy Im iadeckich dgoszczy | Broucek J.,Research Institute of Animal Production Nitra
Ekologia Bratislava | Year: 2015

Cattle produce greenhouse gases (GHG) which lead to changes in the chemical composition of the atmosphere. These gases which cause greenhouse effect include: methane (CH4), nitrous oxide (N2O), nitrogen oxides (NOx), sulphur dioxide (SO2), ammonia (NH3), dust particles and non-methane volatile organic compounds, commonly described as other than methane hydrocarbons. Fermentation processes taking place in the digestive tract produce 'digestive gases', distinguished from gases which are emitted during the decomposition of manure. Among these digestive gases methane and non-methane volatile organic compounds are of particular relevance importance. The amount of gases produced by cows can be reduced by choosing to rear animals with an improved genetically based performance. A dairy cow with higher production efficiency, producing milk with higher protein content and at the same time reduced fat content emits less GHG into the environment. Increasing the ratio of feed mixtures in a feed ration also reduces GHG emissions, especially of methane. By selection of dairy cows with higher production efficiency and appropriate nutrition, the farm's expected milk production target can be achieved while at the same time, the size of the herd is reduced, leading to a reduction of GHG emissions. Source

Zabransky L.,University of South Bohemia | Soch M.,University of South Bohemia | Panikova M.,University of South Bohemia | Novak P.,University of South Bohemia | And 4 more authors.
Journal of Central European Agriculture | Year: 2014

Healthy and strong individuals are fundamental in every cattle breeding. The aim of this study was to find out which of these given supplement had the best influence on calf weight gain in the early period after weaning to milk nutrition. This research was carried out in cooperation with the farm in Haklovy Dvory. Calves were studied from March 2012 to February 2013. They were weaned into outdoor individual box after birth. There were added supplements into their ration in the first two weeks of life. Calves were partitioned according to the added supplement into three experimental groups and one control group. The first weight control of calves was after birth and the second weight control was at the age of thirty days. The average weight gain was calculated from the differences in these values. The best demonstrable effect was in the experimental Homeopathy and Prebiotics (Biopolym) groups with the average increment of 26.9 kilograms, then in the experimental Probiotics (Lactovita) group with the average increment of 26.1 kilograms. The last group was the Control one, there was not any change in the calves’ ration and their average increment was 23.5 kilograms. The results of the statistical evaluation was p = 0.0572 in the Biopolym group, p = 0.2570 in the Lactovita group and p = 0.2124 in the Homeopathy group versus the Control group. It can be concluded from the results of this study that calves had a positive reaction on the supplements added in the first days of life and these had a favourable effect on diarrhoea prevention. Prebiotics, homeopathic drugs and probiotics beneficially stimulate calves’ digestive system and, in general, they have a positive effect on the calves’ physiological condition. ©2014 University of Zagreb - Faculty of Agriculture.All rights reserved. Source

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