EJPAU, 2018, Volume 21, Issue 3

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21(3) #01
20 Jul 2018
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Watering peppermint (Mentha piperita rubescens)cultivationwith water exposed to low-pressure, low-temperature glow plasma of low frequency (PW) for 150 days in a greenhouse stimulated the growth of leaves and stems by 24 and 5%, respectively. Application  of PW changed composition of extracts without any negative effect on their bactericidal properties. PW increased the content of chlorophylls, carotenoids and ascorbic acid, decreased the concentration of the Mn(II), Ni(II), Ca and Mg ions in leaves and stems, decreased the concentration of the Pb(II) and Fe(III) ions in leaves and increased their concentration in stems and had no influence of the concentration of the Zn,  Cu(II),  Cd, Cr(III) and Co(II) ions in both parts of the plant. Simultaneously, PW increased the level of the Na+ ions and had no influence on the level of the K+ ions in the leaves and stems.  PW considerably reduced the accumulation of sulfates, chlorides and nitrites, slightly reduced the level of phosphates and elevated the level of nitrate

21(3) #03
21 Sep 2018
Animal Husbandry
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This paper gives an overview on present stage and application of embryo transfer in swine (ETS). The work steps of selection and stimulation of donor pigs, embryo collection techniques, embryo handling, selection and stimulation of recipient pigs as well as embryo transfer methods are shortly described. Further, factors affecting the application of ETS today and fields of current and future use in pig production and research are named. Hopeful benefits of ETS will be the international exchange of porcine embryos of value breeds instead of live animals, the production of piglets for xenotransplantation and probably the conservation of endangered pig breeds. However, the prospective application of ETS will not become the same significance compared to embryo transfer in other livestock species.

21(3) #04
24 Sep 2018
Veterinary Medicine
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The study was carried out on 116 individuals of European fallow deer (Dama dama), including 58 free-living animals and 58 farm animals. The age of the fallow deer was 1.5 to 3 years. Carcasses of free-living animals were used, acquired as a result of culling, while carcasses of farm animals were provided by a deer farm. Out of the individuals from each maintenance method, a group of does and a group of bucks were isolated. The aim of the study was to determine and compare the values of metric features of the stomach as a whole and its individual chambers in two different European fallow deer populations (Dama dama) i.e. living in a natural hunting ground and kept in a farm system. Measurements of stomach capacities were made on the material not fixed according to Kwaśnicki's method. The results of the study showed that the metric features of the fallow deer stomach are largely dependent on the maintenance and sex. Significant differences in total gastric capacity and its individual chambers were observed.
21(3) #02
23 Jul 2018
Environmental Development
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In undulating landscapes, soils redistribution mainly results from erosional processes. Thus, the objective of this study was to evaluate the morphological changes and properties of soils located in various slope positions in the old glacial landscape of north-eastern Poland. Soil samples were taken from 5 profiles along transect of a topo-sequence containing hummock summit, slope, the footslope, the toeslope and the slope of another hummock and were analyzed for basic soil properties. Study revealed spatial redistribution of soils in undulating and thus complex old glacial landscape within one crop field. Soil located on a summit is Haplic Luvisol but the soil on the shoulder of the south-facing slope is classified as Haplic Regosol and its profile structure, the lowest content of nitrogen and carbon suggests the complete truncation of the soil profile by erosion. The confirmation of this process is the location of the Haplic Cambisols (Eutric) on the top of the buried Cambisol and Luvisol on the toeslope and footslope.

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