Continuous monitoring of pop hole usage by commercially housed free-range hens throughout the production cycle

Free-range laying hens are able to move between the indoor house and range through exits termed pop holes. The aim of this study was to examine the proportion of the flock that used the pop holes and to identify patterns of movement throughout the flock cycle. Four flocks of free-range hens each of...

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Veröffentlicht in:	Veterinary record 2011-09, Vol.169 (13), p.338-338
Hauptverfasser:	Richards, G. J., Wilkins, L. J., Knowles, T. G., Booth, F., Toscano, M. J., Nicol, C. J., Brown, S. N.
Format:	Artikel
Sprache:	eng
Schlagworte:	Age Factors Animals Antennas Chickens - physiology Eggs Female Global positioning systems GPS Housing, Animal Oviposition Radio frequency identification Time Factors Transponders Weather
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