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001-es BibID:	BIBFORM065505
Első szerző:	Halász András (agrármérnök)
Cím:	Detailed analysis of cattle behavour on rangeland under free range grazing system / Halasz A., Nagy G., Tasi J., Bajnok M.
Dátum:	2016
Megjegyzések:	Behaviour of Hungarian grey cattle was observed under range grazing conditions during four grazing seasons. The actual behaviour of cattle was recorded 3 times an hour, during investigated grazing days. Selected animals were tagged with GPS recorders which made it possible to detect their position on the pasture and to calculate the daily covered distance. Detected behavioural traits were recorded in behavioural journals (ethograms). These records allowed us to describe the animals' detailed daily routine.The daily behavioural pattern built up from feed intake-metabolic (47.7%), social (25.9%), move (23.1%) and sexual (3.3%) behaviour traits. New traits (watch, sentinel, threefold division) were revealed and redefined (for this breed only), contrasting with previously published papers. The daily travelled distance covered by cattle, ranged between 1-5 kilometres. It was mostly influenced by the weather-front changes throughout barometric pressure dynamics. Grazing preference showed remarkable differences. Sward quality and the proximity of water had the greatest influence on the intensity of pasture use.
ISBN:	978-8217-01677-9
Tárgyszavak:	Agrártudományok Állattenyésztési tudományok előadáskivonat cattle behaviour daily routine daily travelled distance grazing preference
Megjelenés:	Proceedings of the 26th General Meeting of the European Grassland Federation : The multiple roles of grassland in the European bioeconomy / ed. Höglind M., Balken A. K., Hovstad K. A., Kallioniemi E., Riley H., Steinshamn H., Ostrem L. - p. 95-97. -
További szerzők:	Nagy Géza (1952-) (agrármérnök) Tasi Julianna (1956-) (agrármérnök) Bajnok Márta (1975-) (agrármérnök)
Internet cím:	Intézményi repozitóriumban (DEA) tárolt változat Szerző által megadott URL
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001-es BibID:	BIBFORM065052
035-os BibID:	(WoS)000387850600011 (Scopus)84995612349
Első szerző:	Halász András (agrármérnök)
Cím:	Weather regulated cattle behaviour on rangeland / Halasz A., Nagy, G., Tasi J., Bajnok M., Mikone J. E.
Dátum:	2016
ISSN:	1589-1623 1785-0037
Megjegyzések:	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.
Tárgyszavak:	Agrártudományok Állattenyésztési tudományok idegen nyelvű folyóiratközlemény hazai lapban folyóiratcikk Biometeorology gps Cattle Behaviour Atmospheric Pressure Serotonin
Megjelenés:	Applied Ecology and Environmental Research. - 14 : 4 (2016), p. 149-158. -
További szerzők:	Nagy Géza (1952-) (agrármérnök) Tasi Julianna (1956-) (agrármérnök) Bajnok Márta (1975-) (agrármérnök) Jónás Edit (1974-) (agrármérnök)
Internet cím:	Szerző által megadott URL DOI Intézményi repozitóriumban (DEA) tárolt változat
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