Currently, much attention is paid to magnetoreception, a sense which allows an organism to detect a magnetic field of the earth. Now, this discovery is related to positional behaviour of animals (magnetic alignment) in the magnetic field and the world phenomenon of "magnetic cows". The magnetic alignment is a spontaneous (congenital) behaviour, when the animal puts its body axis into the positions of north - south or east - west. Most studies have demonstrated the north - south direction preference. This work contributes to clarify positional behaviour of cattle during the daily cycle. This study is based on a different data collection and is targeted at individuals in the herd. Individuals were photographed in a given direction, at hourly intervals. The magnetic alignment was determined in 26 individuals from three different cattle herds, mainly east or west. Statistically significant results during daily cycles in individual intervals also confirmed the north - south direction preference. There were also discussed the environmental conditions that may affect the final result. For inconclusive results, the individuals were probably motivated by temporarily more important local incentives.
| Identifer | oai:union.ndltd.org:nusl.cz/oai:invenio.nusl.cz:320558 |
| Date | January 2017 |
| Creators | FOLEJTAROVÁ, Lucie |
| Source Sets | Czech ETDs |
| Language | Czech |
| Detected Language | English |
| Type | info:eu-repo/semantics/masterThesis |
| Rights | info:eu-repo/semantics/restrictedAccess |
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