Ki a természetbe! – menekülés a mindennapokból

A rekreáció olyan szabadidős tevékenység, amelynek célja a napi fő elfoglaltság által okozott fáradtság, feszültség feloldása, a testi-lelki teljesítőképesség és -készség helyreállítása; egyik formája a mozgásos rekreáció. Az önkitöltéses kérdőíves módszerrel végzett vizsgálat célja a rekreációval, vízi sportokkal kapcsolatos attitűdök, vélemények felmérése volt magyar és külföldi személyek körében. Eredményeink szerint a magyarok lényegesen kevesebb időt töltöttek sporttal, mozgással, mint a külföldiek. A megkérdezettek többsége tisztában volt a rekreáció fogalmával, s az emberek érdeklődnek a vízi sportok és a vízi rekreáció iránt. Mindkét csoportban a vízilabda, az úszás és a kajak-kenu, illetve evezés szerepelt a legnépszerűbb vízi sportok között, amely hazánk esetében nem meglepő, hiszen világviszonylatban is ezekben vagyunk a legsikeresebbek. A vízi sportok klasszikus formái (például vízilabda) mellett nagy az érdeklődés az újabb, ma még kevésbé elterjedt sportok (például vízibanán) iránt is. A vízi rekreáció nyújtotta lehetőségek kiaknázása fontos szerepet tölthet be a lakosság életminőségének javításában

The Impact of PRRS Eradication Program on the Production Parameters of the Hungarian Swine Sector

Background: The Hungarian national eradication program of PRRS was successfully completed between 2014 and 2022. There were doubts about the efficiency of the eradication program in Hungary from the beginning to the tune that it might only be carried out efficiently through depopulation–repopulation of the infected herds, which is a very costly procedure. In our study, we investigated the impact of the depopulation–repopulation procedure, which played a prominent role in the PRRS eradication program on the productivity of the Hungarian swine sector–namely, on the number of slaughter pigs per sow per year and the total live slaughter weight per sow per year. Material and Methods: Since 2014, we monitored the evolution of the PRRS eradication through the depopulation–repopulation approach on the large-scale breeding herds in Hungary. Most producers replaced their herds with animals that were free of PRRS and other infectious diseases (mycoplasmosis, actinobacillosis, swine dysentery, atrophic rhinitis, etc.). On this basis, we evaluated the change in the number of slaughter pigs per sow per year as a consequence of depopulation–repopulation of the herds being carried out. In the statistical analysis linear regression was used. Conclusions: The results of our study demonstrate that the PRRS eradication program with the herd depopulation–repopulation approach led to a considerable improvement of the productivity of Hungarian pig farming. This result also demonstrates that, independent of the PRRS eradication, it is still necessary to consider investments into the individual production units to increase efficiency, and to carry out herd depopulation–repopulation in cases where the current genetics limits improvements in productivity

Sampling Strategies in PRRS Elimination in Hungary: An Observational Study Involving Four Farrow-to-Finish Swine Herds

PRRS elimination strategies often rely on depopulation-repopulation. However, this approach is accompanied by a long-term loss of production. With adequate control measures, such as well-designed immunization programs and technological changes along with prevalence-based laboratory testing, the virus-free status of the most vulnerable age groups in swine herds can be achieved. The most common reason for acquiring PRRSV at large farrow-to-finish swine farm units is that the previously settled fattening pigs serve as a source of infection for the newly reared PRRS-free animals. Following such unwanted events, PRRSV may persist in an affected establishment for several years. In this observational study, we selected four farrow-to-finish type swine herds. We implemented different laboratory testing protocols to find the most optimal solution for a successful PRRS elimination program. To aid our objectives, we used a DIVA PCR technique. The PRRS DIVA PCR assay is a fast, reliable method to identify sows shedding farm-specific PRRSV strain(s). As a result of elimination efforts at the sentinel pig herds, we found that reliable detection of wild-type PRRSV shedding among sows requires sampling at least three weaned piglets per litter. The strict adherence to this sampling protocol, the systematic use of laboratory methods that quickly detect the presence of wild virulent virus in the herd during the rearing period and the culling of DIVA PCR positive litters and their sows decreased the presence of the resident virus markedly. These procedures at Hungarian farrow-to-finish type farms successfully inhibited the wild-type PRRSV infection of different age groups. The results of this study demonstrate that applying this methodology together with strict biosecurity measures enabled us to reach PRRS-vaccinated-free status in large, farrow-to-finish herds within two years

Application of ventricular tachyarrhythmia definitions of the updated Lambeth Conventions provides incompatibility with earlier results, masks antifibrillatory activity and reduces inter-observer agreement.

The Lambeth Conventions (LC I), a landmark guidance document for arrhythmia research was updated and arrhythmia definitions were changed in the new Lambeth Conventions II (LC II). This study examined whether the arrhythmia definitions of LC I and LC II yield the same qualitative results and whether LC II improves inter-observer agreement. Two independent investigators performed blinded arrhythmia analysis of the electrocardiograms of isolated, Langendorff rat hearts subjected to regional ischemia and perfused with Class I antiarrhythmics with 3 or 5 mM K+ in the perfusate. Data obtained with arrhythmia definitions of LC I and LC II were compared within and between observers. Applying ventricular fibrillation (VF) definition of LC II significantly increased VF incidence and reduced VF onset time irrespective of treatment by detecting 'de novo' VF episodes not found by LC I. LC II reduced the number of ventricular tachycardia (VT) episodes and simultaneously increased the number of VF episodes as compared with the respective values obtained according to LC I. Using VF definition of LC II masked the significant antifibrillatory effects of flecainide and the high K+ concentration identified with the VF definition of LC I. When VF incidence was tested, a very strong inter-observer agreement was found according to LC I, whereas using VF definition of LC II reduced inter-observer agreement. It is concluded that LC II shifts some tachyarrhythmias from VT to VF class, and thus results obtained by arrhythmia definitions of LC I and LC II are not compatible; VF definition of LC II may change the conclusion of pharmacological, physiological and pathophysiological arrhythmia investigations and may reduce inter-observer agreement. Thus, VT and VF definitions of LC II should be amended in order to increase compatibility and inter-observer agreement

The possibility of using mesenchymal stem cells for veterinary research and medicine Part 1 - Literature review

SUMMARY In the first part of the two-part article series, based on the literature and their own research and experience, the authors introduce the stem cell types, detailed characteristics of mesenchymal stem cells, as well as the possibility of their veterinary uses and experimental results, particulary regarding the donor's age and the advantages and disadvantages of using allogene or autologue cell source for medical purposes. In the second part their own experimental results presented, the proliferative and the osteogenic differentiation capacity of adipose-derived mesenchymal stem cells from young and older dogs are demonstrated