55 research outputs found

    Company´s Security Policy

    Get PDF
    Předkládaná bakalářská práce komplexně analyzuje problematiku IT bezpečnosti konkrétního českého podniku střední velikosti, a navrhuje rovněž ucelené řešení této problematiky včetně praktické implementace. Vzhledem k rozsahu problematiky jsem zvolila oblast bezpečnostní politiky společnosti.Presented Bachelor’s thesis comprehensive analyses problems of IT security of concrete Czech company medial size and suggests integrated solution of this sphere including practical implementation at the same time. According to the extent of problems I choose section of company’s security policy.

    Risk Factors and Detection of Lameness Using Infrared Thermography in Dairy Cows - A Review

    Get PDF
    Lameness in dairy cows is a worldwide problem, usually a consequence of hoof diseases. Hoof problems have a negative impact on animal health and welfare as well as the economy of the farm. Prevention and early diagnosis of lameness should prevent the development of the disease and consequent high costs of animal treatment. In this review, the most common causes of both infectious and noninfectious lesions are described. Susceptibility to lesions is primarily influenced by the quality of the horn. The quality of the horn is influenced by internal and external conditions such as hygiene, nutrition, hormonal changes during calving and lactation, the animal's age or genetic predisposition. The next part of this review summarizes the basic principles and possibilities of using infrared thermography in the early detection of lameness in dairy cows.O

    Utjecaj obogaćivanja stočne hrane lanenim uljem i ekstrudatom sjemena lana na profil masnih kiselina u kozjem jogurtu

    Get PDF
    Feed composition is one of the most influential factors affecting fatty acid profile of milk products. The aim of this study was to investigate the influence of linseed oil and linseed extrudate supplementation on fatty acid composition of goat prebiotic and probiotic yogurt drinks. Thirty six White Shorthaired dairy goats at the beginning of their third lactation period were divided into two experimental and one control group, each comprising twelve animals. Goats in the experimental groups were given either 55 mL/day of linseed oil or 120 g/day of linseed extrudate over a three week period. The results suggest that feed supplementation with linseed oil and linseed extrudate caused considerable changes in fatty acid profile of goat yoghurt drinks. The most important nutritional change which was observed was increased n-3 fatty acid content (P<0.001) and decreased saturated fatty acid content (P<0.001). α-linolenic acid was significantly elevated (P<0.001) in both groups (in particular in goats which feed was supplemented with linseed oil).Sastav krme jedan je od najznačajnijih čimbenika koji utječu na profil masnih kiselina mliječnih proizvoda. Cilj ovog istraživanja bio je istražiti utjecaj dodatka ulja lanenog sjemena ili ekstrudata lanenog sjemena na sastav masnih kiselina prebiotičkog i probiotičkog jogurta od kozjeg mlijeka. Trideset i šest mliječnih koza pasmine White Shorthaired na početku trećeg razdoblja laktacije podijeljene su u dvije eksperimentalne i jednu kontrolnu skupinu, od kojih svaka uključuje dvanaest životinja. Kozama u eksperimentalnim skupinama davano je 55 mL/dan ulja lanenog sjemena ili 120 g/dan ekstrudata lanenog sjemena tijekom tri tjedna. Dodatak ulja lanenog sjemena i ekstrudata lanenog sjemena izazvao je znatne promjene u profilu masnih kiselina kozjeg jogurta. Najznačajnija promjena u hranjivim svojstvima bila je povećana količina masnih kiselina n-3 (P<0,001) i smanjen udjel zasićenih masnih kiselina (P<0,001). Udjel α-linolenske kiseline bio je značajno povišen (P<0,001) u obje skupine (posebno kod koza koje su hranjene dodatkom lanenog ulja)

    The effect of dietary Rhus coriaria L. supplementation on fatty acids composition in table eggs

    Get PDF
    The aim of the study was to analyse the effect of Rhus coriaria L. on fatty acids composition in table eggs. In the experiment, there were used laying hens Hy-Line Brown at the age 20 weeks, experiment lasted 21 weeks. Two diets for two hen´s groups (control: C and experimental: E) were used in trial. In control group, hens were fed by commercial total feed mixture, in experimental group the feed mixture was supplemented by Rhus coriaria L. seeds (1 % in feed mixture). During the last week of experiment, eggs of group were collected and after adjustment were analysed for fatty acids. In experimental group of hens was found in egg´s yolk significantly (P0.05) of a higher linoleic acid percentage. The same tendency (P>0.05) was found in γ-linoleic acid. In egg´s yolk from control group of hens were found higher percentage of α-linoleic acid (P<0.05).  In arachidic and arachidonic acid, there were didn´t found a effect of Rhus coriaria L. seed supplementation in total feed mixture hen´s diet

    Vliv teplotně-vlhkostního indexu na fyziologické a hematologické ukazatele dojnic

    Get PDF
    Heat stress in cows is commonly assessed using the temperature and humidity index (THI), a combination of ambient temperature and relative humidity. In this study, the influence of the THI on haematological and other physiological indicators in cows was evaluated. A significant difference was found in respiratory rate; when THI increased above 70 breaths/min, respiratory rate increased from 19.8 to 34.4 breaths/min. When THI increased above 80 breaths/min, there was a sharp increase in respiratory rate to 128.8 breaths/min. This was observed between 3 and 4 clocks in the afternoon when the highest thermal stress was assumed in dairy cows. The correlation coefficient between THI and body temperature was 0.38, but when weighted averages of minimum temperatures for three days were used, the correlation coefficient increased to 0.48. Based on these results, it is more reasonable to use the minimum THI over several days. At critical temperatures, haemoglobin decreased to 115.45 ± 23.12 g/l, compared with values measured in dairy cows under optimal conditions. However, these values did not fall below 125 g/l. A similar trend was observed for hematocrit under optimal conditions it was 34.42 ± 1.03%, and under stress, it was 37.5-39.12%. The number of erythrocytes was the lowest (6.51 ± 0.137 × 1012/l) in the most heat-stressed dairy cow group.Byl hodnocen vliv teplotně-vlhkostního indexu (THI) na fyziologické a hematologické ukazatele krav. Zřetelný statisticky průkazný rozdíl byl nalezen u frekvence dechu, kdy při zvýšení THI nad 69,8 došlo k vzestupu frekvence dechu z 19,8 na 34,4 dechů za minutu. Při dalším vzestupu THI o 10, došlo prudkému nárůstu frekvence dechu až na hodnotu 128,8 dechů/min. Tato hodnota byla zaznamenána mezi 15–16 hodinou, kdy se předpokládalo nejvyšší tepelné zatížení dojnic. Korelační koeficient mezi THI a tělesnou teplotou byl 0,38. Pokud se ale do sledování zahrnuly vážené průměry minimálních teplot za 3 dny, došlo ke zvýšení koeficientu korelace na hodnotu 0,48. U maximálních hodnot to pak bylo 0,44. Z dosaženého výsledku je patrné, že o dopadu tepelného stresu je vhodnější využívat hodnot denního minima, se zahrnutím několikadenních hodnot. U hemoglobinu došlo v době kritických teplot k jeho poklesu na hodnotu 115,45 ± 23,12 g/l, oproti hodnotám, které byly zaznamenány u dojnic v optimálních podmínkách. U těchto nedošlo k poklesu pod 125 g/l. Podobně tomu bylo u hematokritu s hodnotou 34,42 ± 1,03% oproti ostatním s průměrem 37,5 do 39,12%. U počtu erytrocytů byl zjištěn statisticky nejnižší průměr (6,51 ± 0,137 x 1012/l) u tepelně namáhané skupiny dojnic

    Quality of business environment of the SME: A sectoral view

    Get PDF
    The aim of the article is to find out differences in the perception of selected factors that determine the business environment among selected groups of small and medium-sized enterprises (SMEs), divided according to the sector of the national economy they belong to. The first group included SMEs from the sector of transport and services. The second group included SMEs from the construction, manufacturing and agriculture sectors. The questionnaire was completed by 459 SMEs in the Czech and the Slovak Republics. To evaluate the formulated hypotheses, the Chi-square test and the Z-score were used. The case study showed interesting findings. The SMEs in transport and services perceive the competitive environment as more acceptable than the SMEs in construction, manufacturing and agriculture. In addition, the SMEs in transport and services are of the opinion that customers accept prices of their products and services to a greater extent than the SMEs in construction, manufacturing and agriculture. There are also significant differences between selected groups of SMEs in assessing the quality of the judicial system in commercial law and the view that the current level of macroeconomic indicators supports entrepreneurship and creates interesting business opportunities. The national economy sector is not an important criterion in assessing financing, the family environment, R&D infrastructure, the quality of the business environment or the quality of education. The paper brings interesting findings and new incentives for small and medium-sized enterprises; for organizations supporting the business environment; for further research and discussion on the cross-sectoral assessment of the business environment quality and its important factors. © 2020 UNIVERSITY OF ZILINA

    Vliv intensity světla na parametry spermatu kanců plemene duroc

    Get PDF
    This study aimed to investigate whether the intensity of lighting may affect Duroc boars’ semen parameters in different seasons and in different periods from the beginning of the use of boars for semen collection. A total of 6879 ejaculates were collected from 21 boars and kept under natural low light intensity and daylight length conditions, and 3141 ejaculates from 10 boars were kept under high light intensity (190-210 lx) and natural daylight length conditions. Experimental groups were divided according to the intensity of lighting (low, high), season (winter, spring, summer, fall), and the period from the beginning of the use of boars for semen collection (0-1 year, 1.1-2 years, 2.1-3 years). Selected parameters were analyzed: semen volume, sperm concentration, total number of sperms, sperm motility, percentage of sperms with an abnormal morphology and number of insemination doses from one ejaculate. Semen volume, sperm concentration, and rate of sperms with an abnormal morphology were associated with the two-way interaction between light intensity and season (P < 0.0001), and between light intensity and period from the first semen collection (P < 0.0001). The total number of sperms and number of insemination doses from one ejaculate were associated with the two-way interaction between light intensity and season (P < 0.0001). Sperm motility was associated with the twoway interaction between light intensity and season (P < 0.0001), and between light intensity and period from the first semen collection (P < 0.01). In conclusion, the intensity of lighting can affect Duroc boars’ semen parameters in different seasons and different periods from the beginning of the use of boars for semen collection.Cílem práce bylo zjistit, zda intenzita osvětlení, roční období a doba od zařazení kanců do skupiny pro odběr spermatu může ovlivnit parametry spermatu kanců plemene duroc. Celkem bylo odebráno 6879 ejakulátů od 21 kanců, kteří byli chováni v podmínkách přirozené nízké intenzity osvětlení a délky denního světla a 3141 ejakulátů od 10 kanců, kteří byli chováni v podmínkách vysoké intenzity světla (190-210 lx) a přirozené délky denního světla. Experimentální skupiny byly rozděleny podle: intenzity osvětlení (nízká, vysoká), ročního období (zima, jaro, léto, podzim) a období, od začátku používání kanců k odběru spermatu (0-1 rok, 1,1-2 roky, 2,1-3 roky). Byly analyzovány vybrané parametry: objem spermatu, koncentrace spermií, celkový počet spermií, pohyblivost spermií, procento spermií s abnormální morfologií a počet inseminačních dávek z jednoho ejakulátu. Objem spermatu, koncentrace spermií a procento spermií s abnormální morfologií byly spojeny s obousměrnou interakcí mezi intenzitou světla a ročním obdobím (P < 0.0001) a mezi intenzitou světla a obdobím od prvního odběru spermatu (P < 0.0001). Celkový počet spermií a počet inseminačních dávek z jednoho ejakulátu byly spojeny s obousměrnou interakcí mezi intenzitou světla a ročním obdobím (P < 0.0001). Pohyblivost spermií byla spojena s obousměrnou interakcí mezi intenzitou světla a ročním obdobím (P < 0.0001) a mezi intenzitou světla a periodou, od prvního odběru spermatu (P < 0.01). Závěrem lze říci, že intenzita osvětlení může ovlivnit parametry spermatu kanců duroc v různých ročních obdobích a v různých obdobích, od začátku používání kanců pro odběr spermatu

    A Case of an Epignathus with Intracranial Extension Appearing as a Persistently Open Mouth at 16 Weeks and Subsequently Diagnosed at 20 Weeks of Gestation

    Get PDF
    ABSTRACT: We report a rare case of oral mass (epignathus) with intracranial extension originally suspected antenatally at 16 weeks&apos; gestation because of a persistent open mouth. Postmortem MRI and pathologic examination of the fetus confirmed an oral teratoma with bilateral ventricular dilatation, corpus callosum agenesis, and a neuroepithelial intracranial cyst. The relevant literature regarding this anomaly is reviewed
    corecore