Note on a method for individual recognition in feed pecking in free running groups of hens.
A system for automatic registration and individual recognition of feed pecking (activity and quantity) in groups of free running hens was tested. A PIT (Passive Integrated Transponder)-tag system was used to separate and register individuals when they were feeding. An electronic balance system placed under the feeder registered the amount eaten by each individual on a PC. A test with two different feed stuffs; oat and wheat was performed on three hens during a total of 6 weeks.
Brännäs
E
Department of Aquaculture, Swedish University of Agricultural Science, S-90183, Umeå, Sweden
Wiklund
B
Burel
C
Ciszuk
P
Liljedahl
L
Kiessling
A