Szerző szerinti böngészés "Wagenhoffer, Zsombor"

Megjelenítve 1 - 6 (Összesen 6)
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    TételSzabadon hozzáférhető
    Comparison of vegetation of Hungarian Grey Cattle and Hungarian water buffalo pastures in a sample area of the Danube-Tisza Interfluve
    (2023-06-15) Penksza, Károly; Péter, Norbert; Fűrész, Attila; Saláta-Falusi, Eszter; Szentes, Szilárd; Penksza, Péter; Wagenhoffer, Zsombor; Penksza, Károly
    In the present study, we aimed to investigate the coenology of the Kelemen-szék in the Kiskunság National Park. The coenological studies were carried out twice. We compared areas with different vegetation types. During these two surveys, we examined in total 90 quadrats of mixed grazed and fenced control areas.  Ones were grazed by Hungarian domestic buffalo and Hungarian grey cattle and others were no grazed. Based on these surveys, it is possible to conclude about spatial and temporal changes in vegetation as a result of livestock husbandry in the area. Due to the size and heterogeneity of the studied area, we intended to investigate small homogeneous areas and respective control areas. Coenological surveys were done on lower and higher lying pastures, saline soil areas and loess areas. In the study plots, grazing led to stability in the species composition of loess grassland and saline grassland, so that they also satisfy the requirements moof nature conservation. The dominant and character species of the associations, and the typical species of the genus Festuca have a significant cover value. The dense and tall Puccinellia swards require more attention, because they are more vulnerable against grazing. Grazing and extensive livestock husbandry, which can be applied in the future, is a suitable method for the management of lowland areas. In order to conserve the associations, preservation of grazing is necessary. To provide amount of biomass of areas, the grazing has a significant role. The conservation of native loess grasslands, even in the form of fragments, plays an outstanding function. Hence, based on the initial surveys, the combination of Hungarian grey cattle and water buffalo is beneficial in terms of nature conservation.
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    TételSzabadon hozzáférhető
    Gyepgazdálkodási fogalomtár 1. rész A gyep és néhány hozzá kapcsolódó fogalom meghatározása
    (2024-07-08) Szentes, Szilárd; Bajnok, Márta; Wagenhoffer, Zsombor; Lepossa, Anita; Pólyáné Hanusz, Borbála; Tasi, Julianna
    The definition of the terms related to swards used in support systems in grassland management, or used in the nomenclature of land cover data generated during remote sensing activities, is currently unclear and often inaccurate. It is necessary to define these terms in agricultural context, as well as to standardize the different formulations currently in use. This glossary made by the academic members of MÁSZ Grassland Management Working Group, helps to clarify concepts.
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    TételSzabadon hozzáférhető
    A házi vízibivaly (Bubalus bubalis) legeltetés, mint élőhelykezelési és inváziós fajok elleni alkalmazási lehetőség
    (2023-06-15) Penksza, Károly; Fűrész, Attila; Szentes, Szilárd; Wagenhoffer, Zsombor; Viszló, Levente; Szalai, Ferenc; Fintha, Gabriella; Penksza, Péter; Turcsányi-Járdi, Ildikó; Bajnok, Márta; Tasi, Julianna; Sipos, László; Penksza, Károly
    In nature conservation, the aggressive expansion of invasive plant species and the preservation of valuable grasslands are a global problem. Based on this, the following question can be formulated: which animal species and breeds are suitable for habitat management? Is the water buffalo suitable for lawn care and to what extent? With the overview work, we review the results so far, highlighting domestic areas where we already have preliminary results and where previous data have already been produced. Based on this, the invasive Solidago was completely suppressed in the marshes of the Zámolyi basin, the pasture was completely transformed, and the dominant species became Sesleria uliginosa . Also in the area of the Zámolyi basin, there were significant floristic and physiognomic differences in the vegetation. You may find that buffalo grazing is a suitable habitat management method in both dry grassland and wet grassland. Therefore, in addition to being effective in the control of Solidago gigantea, grazing with buffaloes is successful both in terms of nature conservation and grassland vegetation from an economic point of view. The first stage of the long-term planned work is an overview of the work on the water buffalo. The research is supported by the creation of Innovation operational groups and the investment necessary for the implementation of the innovative project. call for tenders (VP3-16.1.1-4.1.5-4.2.1-4.2.2-8.1.1-8.2.1-8.3.1-8.5.1-8.5.2-8.6.1-17) and the Innovation and the New National Excellence Program of the Ministry of Technology code number ÚNKP-22-3-I-MATE/2 was supported by the grant funded by the National Research, Development and Innovation Fund and grant AKGF-119-1-202.
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    TételKorlátozottan hozzáférhető
    Húshasznosítású magyar tarka tehenek küllemi bírálati eredményei: 2. Populációgenetikai paraméterek, tenyészértékek, trendek
    Bene, Szabolcs; Faludi, Gergely; Benedek, zsuzsanna; Wagenhoffer, Zsombor; Húth, Balázs; Füller, Imre; Polgár, J. Péter; PhD hallgató; egyetemi oktató, kutató
    A Szerzők a Magyartarka Tenyésztők Egyesületének adatbázisát felhasználva 16 küllemi értékmérő tulajdonságban fenotípusos és genetikai trendeket, néhány populációgenetikai paramétert, valamint a tenyészbikák tenyészértékét becsülték meg. A trendszámításokhoz egytényezős lineáris regresszió analízist, a populációgenetikai paraméterek meghatározásához, valamint a tenyészértékbecsléshez különböző BLUP modelleket használtak. A munka során a küllemi tulajdonságok öröklődhetősége meglehetősen gyengének bizonyult (h2 = 0,01-0,19). A két különböző BLUP modellel becsült po-pulációgenetikai paraméterek között számottevő különbség nem mutatkozott. Az apák ugyanazon tulajdonságra becsült tenyészértéke között egyes tulajdonságok esetén nagyobb, más tulajdonságok esetén kisebb különbségeket találtak. Az apa- és az egyedmodellel becsült tenyészértékek között abszolút értékben számottevő eltérések voltak megfigyelhetők. A két modellel felállított apák közötti rangsor kevésbé változott, amit a szoros rangkorrelációs értékek is alátámasztottak. A fenotípusos trendszámítás alapján a küllemi tulajdonságok változásának a trendjét statisztikai értelemben igazolni tudták. Ezzel szemben a genetikai trendek a felhasznált apaállatok minőségének, tenyészértékének a stabilitását mutatták. Az eredmények alapján kijelenthető, hogy a magyar tarka tehenek küllemi tulajdonságai az elmúlt időszakban számottevő mértékben változtak.
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    TételSzabadon hozzáférhető
    Nedves fekvésű magyar szürke szarvasmarha-legelő produkciójának és beltartalmi értékeinek havi változása és összefüggése a fajgazdagsággal
    (2023-06-15) Szentes, Szilárd; Fűrész, Attila; Wagenhoffer, Zsombor; Penksza, Károly
    Grassland management tests were performed on different grazing loaded gray cattle pasture and hayland areas 4 times (April, May, June, September) during the grazing season in Tapolca-basin. 5-5 pieces of 2×2 m samples were examined on each sample area, prepared according to the Braun-Blanquet method (1964) in April, May, June and September and with this, we also measured the amount of biomass and its content. Based on results additional pasture had the largest gazing livestock carrying capacity but it had the weakest feed quality as well. During grazing season due to ongoing livestock grazing, species composition has changed the most in case of pasture and the number of species was the greatest here as well. Proportion of grasses declined in parallel with the amount of legumes, which grown till late summer. Nutrient content of pasture forage was the most appropriate because of high crude protein and less crude fiber content. Grazing for 34 days/year was not enough in case of additional pasture where Festuca arundinacea had the largest coverage. This is reflected in low number of species richness and small nutritional values of sample areas. For sedge rich low-lying areas mowing utilization is the most effective.
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    Szemléletváltás a gyepelemzésben, háromdimenziós termésbecslési és minősítési módszer - Előtanulmány
    (2024-01-01) Szentes, Szilárd; Wagenhoffer, Zsombor; Tasi, Julianna; Penksza, Károly; Bajnok, Márta
    From the point of view of the lawns' current existence, use and their existence for the future, but the tasks, goals and challenges of grassland management have changed, and in line with this, we have carried out surveys and developed and modified a method for fast and efficient application. In practice, it is very important to know the quantitative and qualitative characteristics of the forage found in the pasture, as well as the exact economic value of the pasture. The purpose of this study is to present a cheap, fast, reliable and easy-to-apply estimation method. We took the previous methods into account and corrected and further developed them with the help of recent lawn management research results. Based on our tests, the corrected Balázs method can be used well to estimate the yield of grasslands and to determine the fodder value of the grassland. This method is cheap and requires no technical background. It also has the advantage, based on experience, that it takes into account the preference of species by animals. The data from the cenological survey and the height measurement of the plant stock can be used to estimate the yield, fodder value and economic value. Being a non-destructive method involving minimal trampling, it is also particularly suitable for monitoring the grassland habitat of protected plants and animals. The method is also presented on a sample example, which proves its applicability.