6 research outputs found
KĂĽlönbözĹ‘ tĂpusĂş gyepek makro- Ă©s mikroelem tartalmának alakulása a hasznosĂtási gyakoriság fĂĽggvĂ©nyĂ©ben
Hazánkban a juhok takarmányozása gyepre alapozott, vagyis a körĂĽlbelĂĽl 200 napos legeltetĂ©si idĂ©nyen kĂvĂĽli idĹ‘szakban is zömĂ©ben a gyeprĹ‘l betakarĂtott takarmányt fogyasztják az állatok. A sok elĹ‘ny mellett vannak állategĂ©szsĂ©gĂĽgyi vonatkozásai, esetleg kockázatai is a legelĹ‘n valĂł tartásnak. Kutatásunk fĹ‘ cĂ©lkitűzĂ©se volt, hogy megvizsgáljuk kĂ©t eltĂ©rĹ‘ vĂzellátottságĂş (száraz Ă©s ĂĽde) terĂĽleten találhatĂł gyeprĹ‘l betakarĂtott takarmány makro- Ă©s mikroelem tartalmát. A vizsgált alföldi elhelyezkedĂ©sű, száraz fekvĂ©sű gyep ásványianyag-tartalma hat elem esetĂ©ben (P, Mg, Cu, Zn, Mn, Na) nem Ă©rte el a juhok számára szĂĽksĂ©ges mennyisĂ©get, több esetben mĂ©g a kĂvánt mennyisĂ©g felĂ©t sem szolgáltatta a takarmány. Az ĂĽde fekvĂ©sű, mendei gyep a rĂ©z Ă©s a cink kivĂ©telĂ©vel a juhok egĂ©szsĂ©ges táplálásához elegendĹ‘ ásványianyagot tartalmazott
Weather regulated cattle behaviour on rangeland
Cattle behaviour depends both on internal factors (breed,
age, oestrus, hierarchy, body homeostasis) and external
factors (air temperature, humidity, wind speed, paddock size,
grass quality and quantity). In our study we present how
weather conditions modify behaviour and daily walked
distance. Direct observations of Hungarian grey cows and
calves were carried out in Eastern Hungary on a rangeland
called Hortobagy. Meteorological, spatial and behavioural
data were collected using weather stations, GPS collars and
ethogram recordings. Data showed a positive correlation
between daily walked distance and atmospheric pressure
(r=0.389, P<0.05). Animals consistently used the same daily
routes and resting sites. Moreover, frequency of metabolic
behaviour (grazing, rumination, drinking, defecation, and
urination) depended significantly on type of weather fronts
experienced on the day following the examined day (r=0.445,
P<0.05). These weather fronts were classified according to
the system developed by Peczely. In summary, our study
suggests that Hungarian grey cattle show specific behavioural
patterns during low-pressure conditions. Therefore,
understanding their behavioural responses to different
environmental factors may help to improve the handling
techniques of extensively farmed beef cattle. As behavioural
adaptation is usually driven by the neuroendocrine system, we
suggest that this type of regulation could also depend on
environmental changes, therefore, this relationship needs
further research.
Keywords: atmospheric pressure; front; GPS; serotonin;
zoometeorolog